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Author Topic: Burst hose - Blowing Air?  (Read 2839 times)

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2am Omega

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Burst hose - Blowing Air?
« on: 28 February 2009, 15:52:08 »

97 R plate Omega Elite 2.5 V6 Petrol engine ran as smooth as velvet .. now suddenly lumpy with reduced power and petrol consumption almost doubled. Paperclip test suggests no fault. HT system seems ok. Found burst hose which seems to be blowing air ..  Slightly tacky rubber hose which can be squeezed and crimped with bulldog clip to seal temporarily, then engine runs better .. so looks like this is the problem. Black hose has marking ending 0020555 > ECU>. Location is at front of engine bay, just nearside of centre, running vertically near radiator fan then curved over to feed a black spaceship-style 2 inch circular device, quite high, which attaches to a bracket attached to the frame of radiator fan. The frayed burst is about 2 inches long near top elbow curve. Can somebody please identify this hose and its function, including where the lower end connects? Is it an easy DIY job to replace hose or a garage job? Do I need a replacement manufacturer hose part or a length of standard hosing? Assistance welcome please.
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philhoward

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Re: Burst hose - Blowing Air?
« Reply #1 on: 28 February 2009, 18:05:49 »

Sound like the SAI hose off the top of my head - does the non-spaceship end go down under the battery/headlight area?  In which case should be fine to run with it plugged, but generic hose repair tape would do better (get it from any DIY store)
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2am Omega

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Re: Burst hose - Blowing Air?
« Reply #2 on: 28 February 2009, 19:09:49 »

Please explain what does SAI Hose mean. The black spaceship or flying saucer type device is about 2.5 inches diameter with 3 smaller concentric circular levels on its top. The burst hose attaches on the offside of this device, not the other hose attaching on the battery nearside, and it heads down then curls under towards the nearside headlight, under the battery area. Not sure which direction the airflow runs.

I have taken a photo of the engine bay showing this device and the crimped burst hose but not sure if there is a way to upload it to this website???

Thanks for your suggestion of hose repair tape. Does anybody else know the function of this hose and flying saucer device please?

Would this burst air hose explain the engine malfunction and the hugely increased fuel consumption?
« Last Edit: 28 February 2009, 19:34:23 by 2am »
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philhoward

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Re: Burst hose - Blowing Air?
« Reply #3 on: 28 February 2009, 19:47:54 »

SAI - Secondary Air Injection.  There's a big fan blower under the headlight area which blows air through the "flying saucer" and eventually into the exhaust manifolds to get the cat converters up to temperature quicker for emmissions purposes.  These fans tend to fail and make sounds like a jet engine so get unplugged with no ill effects.  They tend to only play a part for the first 30 seconds from startup though.

To upload a photo easiest way i've found is something like photobucket.com which will allow you upload a photo to them, then they will give you an IMG link; copy and paste this link into your psot here and it should show up..
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Matchless

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Re: Burst hose - Blowing Air?
« Reply #4 on: 28 February 2009, 19:57:02 »

Secondary air injection is part of the emissions control, air is blown into both exhaust manifolds for the first half minuite or so after a cold start.
The black spaceship is a vacuum operated valve which is controlled by the engine ecu and should only be openfo 30 secs or so. Follow the pipe towards the engine, there is a silver spaceship on a metal pipe. This is a non-return valve and prevents exhaust gasses returning up the pipe to melt the rubber pipe or plastic valve.
It sounds like your non-return valve isnt working (most dont work very well) but the bigger clue is poor running and high fuel consumption which could point to a blocked exhaust. If the rear box has collapsed inside it can cause a blockage affecting both banks. Other possibilities are the centre boxes or cats.
If you follow the metal pipes to either side of the engine you will find a pair of rubber couplings, these often melt when exhaust is blocked.
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PaulW

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Re: Burst hose - Blowing Air?
« Reply #5 on: 28 February 2009, 20:42:06 »

Going from your symptoms, I'd hazard a guess this is caused by a blocked cat or blockage elsewhere in the exhaust system...
« Last Edit: 28 February 2009, 20:43:48 by PaulW »
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2am Omega

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Re: Burst hose - Blowing Air?
« Reply #6 on: 28 February 2009, 20:45:02 »

Looks like you are correct about the blocked exhaust connection. The poor running and high fuel consumption started immediately after MOT a few weeks ago. Enormous lengths of hair-like wadding started dangling from the tailpipe of the rear exhaust box .. and I removed them .. also corroded metal inner baffles. This went on for several weeks, like a magician's hat spewing scarves .. then it stopped, presumably all released. The poor running and fuel consumption improved a little, but not back to normal. I had the exhaust system checked and it was externally sound and apparently normal flow pressure .. Kwik-Fit said leave it. It would surprise me if it was still blocked, but how can I check? Is it really necessary to change the expensive exhaust, even though I know the back box is now "empty" ?

Then I discovered the burst SAI air hose. Could this have been caused by back pressure during the period when the exhaust wadding was obstructing the flow? Crimping the air hose leak has helped, but not totally resolved the fuel consumption. Also, if this air system only affects the first 30 seconds of running, would the burst hose really explain the poor fuel consumption?

I will check those rubber couplings either side of the engine in daylight, thank you.
« Last Edit: 28 February 2009, 20:51:08 by 2am »
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Entwood

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Re: Burst hose - Blowing Air?
« Reply #7 on: 28 February 2009, 21:02:47 »

Quote
Looks like you are correct about the blocked exhaust connection. The poor running and high fuel consumption started immediately after MOT a few weeks ago. Enormous lengths of hair-like wadding started dangling from the tailpipe of the rear exhaust box .. and I removed them .. also corroded metal inner baffles. This went on for several weeks, like a magician's hat spewing scarves .. then it stopped, presumably all released. The poor running and fuel consumption improved a little, but not back to normal. I had the exhaust system checked and it was externally sound and apparently normal flow pressure .. Kwik-Fit said leave it. It would surprise me if it was still blocked, but how can I check? Is it really necessary to change the expensive exhaust, even though I know the back box is now "empty" ?

Then I discovered the burst SAI air hose. Could this have been caused by back pressure during the period when the exhaust wadding was obstructing the flow? Crimping the air hose leak has helped, but not totally resolved the fuel consumption. Also, if this air system only affects the first 30 seconds of running, would the burst hose really explain the poor fuel consumption?

I will check those rubber couplings either side of the engine in daylight, thank you.


I wouldn't trust those folks with my in-laws car let alone mine. The wadding issue means the back box is breaking up internally, it may well still have a restriction when at a high flow rate (high power), even if seems to be ok at low power. The SAI pipe issue is well known if the exhaust is restricted.

IMHO you have 2 jobs ... new SAI pipery and new exhaust.. at least a new back box.

The SAI pump only works for a few seconds.. but the vaccuum is in the pipe at all times .. so you have a vac leak which gives poor performance and bad economy
« Last Edit: 28 February 2009, 21:04:03 by entwood »
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philhoward

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Re: Burst hose - Blowing Air?
« Reply #8 on: 28 February 2009, 21:16:53 »

Kwik Fit said it was fine????

"My exhaust has spat all of its innards out - does it need a new one?"

"No sir - unless its due for an MoT, then it also needs 4 shock absorbers and new brakes all round..."

Sorry - but i'd rather trust Master Fit than KwikFit.
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Welung666

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Re: Burst hose - Blowing Air?
« Reply #9 on: 28 February 2009, 21:22:03 »

The rough running and higher consumption could be from when your back box was spewing it's innerds and backing the whole system up then you'd get a back up in the cats that could throw the lambda's out.
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2am Omega

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Re: Burst hose - Blowing Air?
« Reply #10 on: 28 February 2009, 21:23:13 »

Certainly the exhaust back box has already broken up internally .. wadding and baffles .. hence "empty". Looks like it must be replaced, even though it seems fine externally.

Regarding the burst SAI pipe, hose repair tape was suggested earlier. Would this be adequate? Or is replacement essential? and is this an easy DIY job with a length of standard hose, or a necessary garage job with a proprietary replacement part?

Thanks to everyone for the advice.
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philhoward

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Re: Burst hose - Blowing Air?
« Reply #11 on: 28 February 2009, 21:27:30 »

On mine )2.0) the rubber pipe is only thin, non-reinforced hose so a repair tape will suffice until you can get replacement pipework (probably better to do the lot) - there's a few breakers on here who will probably be able to help you out for not a lot of cash.
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PaulW

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Re: Burst hose - Blowing Air?
« Reply #12 on: 28 February 2009, 21:37:55 »

Well if the hose is damaged or has gone brittle due to the blowback from the exhaust system, your best solution is ordering a new piece from VX.

Part number is 90500057
Cost is about £5 + VAT each

There should be 1 each side, the drivers side is positioned under the coolant hose, passenger side is similar location obviously.

Thing with your exhaust, it can either just be the backbox, either of the center boxes, or a combination of all 3...  You will only know what it is when you get to taking it all apart.
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2am Omega

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Re: Burst hose - Blowing Air?
« Reply #13 on: 28 February 2009, 21:53:24 »

The SAI hose has not become brittle. On the contrary it is so soft and tacky that it can be temporarily sealed just by squeezing and crimping. I will try to upload the engine bay photo which will show this. Currently it has the addition of a bulldog clip to hold it closed.

So I should replace the SAI hoses on BOTH sides of the "flying saucer" valve. Are there any others important to be replaced at the same time?

I note the comment about "a back up in the cats that could throw the lambda's out". Could this cause permanent damage to these sensors? or will this resolve itself when the exhaust and SAI pipe vacuum are replaced?
« Last Edit: 28 February 2009, 22:00:19 by 2am »
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PaulW

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Re: Burst hose - Blowing Air?
« Reply #14 on: 28 February 2009, 22:02:50 »

It can cause damage to the cats as they can overheat.  It's worth getting the exhaust sorted as soon as you can really, try not to drive it and if you do don't labour the engine too much.

If the hose is fine, just clip it all back into place when sorted.  No need to replace both sides if 1 side is gone, you can just do 1 side, both, or none :)  They are the only ones which can go to be honest.

One warning though, if its blowing on the Drivers side, get some tinfoil wrapped around the coolant hose.  It's not uncommon for the exhaust gasses to 'burn' the coolant hose causing it to burst a hole in it.  Had to replace the one on my MV6 due to this exact issue :(
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topcat

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Re: Burst hose - Blowing Air?
« Reply #15 on: 28 February 2009, 22:05:31 »

I have same problem poor running bafflings comeing out backbox changed two middle and backbox today quieter but still poorly . I will look at those rubber pipes tomorrow
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Alex Wood

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Re: Burst hose - Blowing Air?
« Reply #16 on: 28 February 2009, 22:12:56 »

I wouldn't have thought the secondary air injection problem would affect the running of the engine? My one-way valve failed and I had a hole blown in the hose you're talking about, and the only way I knew it was happening without lifting the bonnet was the raspberry noise when started from cold! I removed the pump and all associated pipework and plugged the rubber hoses coming off the heads. New exhaust for def and then see how it runs I reckon.
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2am Omega

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Re: Burst hose - Blowing Air?
« Reply #17 on: 28 February 2009, 22:30:43 »

I hope this link shows a photo of the burst SAI hose in my engine bay, squeezed and crimped to reseal it.


<center>
<a href="http://s735.photobucket.com/albums/ww354/Prince2am/?action=view&current=90228OmegaElite001.jpg" target="_blank"><img src="http://i735.photobucket.com/albums/ww354/Prince2am/90228OmegaElite001.jpg" border="0" alt="Omega Elite - crimped SAI hose (90228)"></a><br /><br />
</center>
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Re: Burst hose - Blowing Air?
« Reply #18 on: 28 February 2009, 22:35:36 »

Done a better link for you to show the picture .. as HTML links don't work .. :)

« Last Edit: 28 February 2009, 22:35:48 by entwood »
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2am Omega

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Re: Burst hose - Blowing Air?
« Reply #19 on: 28 February 2009, 22:40:45 »

A picture tells a thousand words   :)

Many thanks for your help with the photo.

This really is a very helpful community !!

Thank you to everyone for your interest and assistance to guide me.

« Last Edit: 28 February 2009, 22:57:27 by 2am »
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Shagma

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Re: Burst hose - Blowing Air?
« Reply #20 on: 03 March 2009, 22:06:45 »

Quote
I wouldn't have thought the secondary air injection problem would affect the running of the engine? My one-way valve failed and I had a hole blown in the hose you're talking about, and the only way I knew it was happening without lifting the bonnet was the raspberry noise when started from cold! I removed the pump and all associated pipework and plugged the rubber hoses coming off the heads. New exhaust for def and then see how it runs I reckon.
I removed the SAI and pipeworks also and I had no troubles after that. However, its a good advice to check the returnvalve, because otherwise I guess you will have a "fake connection" between exhaust and engine compartment, right..? correct me if I'm wrong!
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2am Omega

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Re: Burst hose - Blowing Air?
« Reply #21 on: 04 March 2009, 22:55:51 »

Quote
I removed the SAI and pipeworks also and I had no troubles after that

Please confirm what you removed .. did that include the flying saucer shaped vacuum operated valve or the fan blower underneath, as well as the hose?

I do not feel that this SAI system is unnecessary, even after the initial few seconds after start-up. The absence of proper vacuum caused by my leaking SAI hose causes lumpy engine running and very poor fuel consumption, typically mid teens of mpg. This is improved by crimping the SAI hose to try to seal it. What do other folk think?

I have ordered a new SAI hose part 90500057 from Vauxhall.

Can someone please confirm if the Non-Return Valve is the silvery metal device shown top right in my photo. I hope this is not faulty on my car .. the part costs over £150.

What price would members expect to pay to supply and fit exhaust rear box, or complete system, and please suggest good value sources near London Heathrow area.
« Last Edit: 04 March 2009, 23:10:10 by 2am »
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Abiton

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Re: Burst hose - Blowing Air?
« Reply #22 on: 04 March 2009, 23:24:53 »

Let's see if I can help.  
If you follow the airpath from the pump you first come to your split hose, then the vacuum operated valve, then another rubber hose which connects onto the non-return valve.

I don't understand how a split/leak where yours is bust can affect engine running, as the vacuum operated valve should be isolating that pipe once the SAI system shuts down.  

If the non-return valve were faulty, surely it would be the other hose, the one directly connected to it, that would fail??

Apologies if I've got this all backwards, I've only ever seen the 2.0 version of this system.
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2am Omega

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Re: Burst SAI Hose - and Failed Catalytic Converter(s)
« Reply #23 on: 07 March 2009, 23:38:43 »

Got the replacement hose but not yet fitted. Different part number 93170033 in case anyone else needs one.

Chatted to the Vx Parts Manager, who came out and inspected my car .. very helpful. His opinion was that this entire SAI system could be removed .. and was in fact omitted from the facelift models. He said this burst hose was very unlikely to be the cause of my poor engine running and terrible fuel consumption.

I told him about the long lengths of blackened hair-like wadding which had spewed out of my exhaust tail pipe for several weeks, until apparently all released. Whilst it seems the rear box innerds and rusted baffles have also collapsed and been expelled, the source of the enormous quantity of hair wadding was the imploded catalytic converter(s) and this had been blasted through the exhaust system, perhaps blocking at some stage. He referred to "pre" and "post" sensors either side of the cats .. and he thought they were probably malfunctioning around the failed cat(s) causing inefficient fuel balancing, as well as increased emissions.

The problem is the cost of replacement of cats and exhaust system .. megabucks in comparison with the depressed value of an almost 12 year old 2.5 Omega with 134k miles on the clock.

Do you agree with his diagnosis? What action does anybody suggest please?
« Last Edit: 07 March 2009, 23:44:00 by 2am »
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philhoward

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Re: Burst hose - Blowing Air?
« Reply #24 on: 07 March 2009, 23:45:28 »

It's been seen that the Mig likes an exhaust system in good order - but i've not seen a cat with wadding inside as its a honeycomb structure normally.

Also - I thought it was only the 2.6 and 3.2 V6's which had the pre- and post-cat sensors (as well as 2 cats in series on each bank)?
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2am Omega

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Re: Burst hose - and Failed Cats?
« Reply #25 on: 07 March 2009, 23:50:02 »

He said the facelift models changed from that hair-like wadding used in my 97R model to use a different honeycomb material. Yes, he said 2 in-line cats with pre and post sensors in my car. Was he mistaken?

What options are there for action?  Bite the bullet and pay the high price for a new exhaust and cats? Look for a second hand exhaust system from a scrapped car .. risks and poor quality?  Sell my car now for whatever it is worth?  Continue to drive my car and accept teens mpg?  Can you suggest other options?

Maybe wait and hope the government will follow Germany and France in paying up to £2500 to owners of older cars to persuade them to buy newish replacement cars?

What do think is best action?
« Last Edit: 08 March 2009, 00:21:03 by 2am »
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Tawfield

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Re: Burst hose - Blowing Air?
« Reply #26 on: 08 March 2009, 00:28:47 »

I can safely say that there is no wadding in the cat boxes it has come out of the rear box,which initialy clogged up and caused your problems.
The cats are moulded ceramic with thousands of holes [honeycombe] and coated with erm precious metal, that is why they dont like being knocked about  or dropped they break just like dropping a china tea cup, I would think that if your cats are damaged, it would possibly shoot some bits out of the exhaust,they also run very hot near to red hot at times ,Id go for a cat back new exhaust,a good long burn on the motorway that should clean the crud  off the lamda sensors so that they give correct readings to the ecu for fuel rate.  
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2am Omega

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Re: Burst hose - and Exhaust Problems
« Reply #27 on: 08 March 2009, 01:31:02 »

Quote
Id go for a cat back new exhaust

Please explain that exhaust.

The rear box on my exhaust is intact externally, but with innerds shot. Will that affect the engine running and fuel consumption? Necessary to be replaced?

My car has not been driven hard or fast for a long time. Max has been gentle cruise at 60 to 70 for 20 miles or so. So you are suggesting a bit of a blast to reset the lamda sensors and restore normal fuel consumption?

 
« Last Edit: 08 March 2009, 01:39:02 by 2am »
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philhoward

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Re: Burst hose - Blowing Air?
« Reply #28 on: 08 March 2009, 09:06:07 »

Cat back - that means the centre and rear sections.  The cats are part of the downpipes, so effectively 2/3rds of the exhaust.

A good, fast run every now and then (i.e. a bit of 0-60 testing followed by a good 5-10 mile run at as much throttle as the speed limits will allow) helps to burn off the deposits which can accumulate on the Lambda sensors and cat surfaces.

I'd say that despite the externals of your exhaust are in one piece, the business bits inside are no longer doing their job properly.  This will affect the healthy running of the car - especially as the front silencer(s) are probably not much further behind their last days.

I'm guessing your car does mainly short/local runs?

Subject to confirmation from V6 owners (mine's a 4-pot) then pretty sure only 2.6 and 3.2 had the two cats, and hence 2 sensors per bank.

New exhaust time me thinks..
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Tawfield

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Re: Burst hose - Blowing Air?
« Reply #29 on: 08 March 2009, 09:09:33 »

Your rear box is not intact is it,it has failed it may look ok outside.
A few oofers would suggest new rear box sort the faulty hose out,and take the car for a extended run,don`t have to thrash it but fast steady speed this burns the crud off the lamda sensors.
Just before Dec last year was looking for replacement car I had a 2.0ltr Estate giving 26 28 mls to a gallon one trip to Eastbourne gave a return of 32mpg the second trip was to Taunton and the car was giving a reading of 33 mpg I was`nt going slow but not thrashing the car just long stints at   70mph where poss,wonder why I got rid of the car, still the Estate I got from Taunton is a beaut can`t complain, do hope you get the car sorted.    There you go previous post confirming my answer. have to move faster on the keyboard.
« Last Edit: 08 March 2009, 09:12:35 by Tawfield »
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Tawfield

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Re: Burst hose - Blowing Air?
« Reply #30 on: 08 March 2009, 11:36:24 »

Further to my ex 2.0ltr estate I sold it to a Temp oofer he seems to have dissapeared he was asking for help in swapping engines after admitting redlining the revs that car was in good nick cept for a couple of scabs on the body, I just hope he managed to change engines and not send the car to scrap,his car before that, a vectra I think, he went tree hunting and wrote it off
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Re: Burst hose - Blowing Air?
« Reply #31 on: 08 March 2009, 11:44:15 »

Quote
Further to my ex 2.0ltr estate I sold it to a Temp oofer he seems to have dissapeared he was asking for help in swapping engines after admitting redlining the revs that car was in good nick cept for a couple of scabs on the body, I just hope he managed to change engines and not send the car to scrap,his car before that, a vectra I think, he went tree hunting and wrote it off

sounds like a bit of a bellend lol! i cant really redline mine cause the ecu just backs right off the power till you change gear and it wont revhigher unless your did some silly gearbox munching drops at speed lol!
and sounds like he hammers his cars.... i think he takes the whole "drive it like you stole it" to a new level lol!

anyway if the secondary air injection problem hasnt been fully sorted then make sure you get a good one way valve otherwise it'll just bugger up the new pipe you buy (might have a good one in the garage)
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Re: Burst hose - Exhaust Problems
« Reply #32 on: 08 March 2009, 13:41:22 »

What a contrast of driving styles, having read the previous posts.

The special appeal of my 2.5 Omega Elite is its comfort and smoothness, a wonderful cruiser. I never thrash it, but seek best economy. Typical runs are 5-10 miles, sometimes 20 miles to hospital appointments, occasionally further, rarely going over 2500 revs, sometimes cruising at 60-70 mph but not accelerating hard. This profile may seem slightly unadventurous but hopefully will result in extended car life compared to a more stressed style. Am I wrong?

I used to get 28mpg average, with 33-35mpg on runs. Imagine my distress now with these problems, getting only 15-18mpg .. severe depression !!!

However I accept that a good fast run is overdue, maybe using kickdown or lockdown for higher revs, to help burn off deposits in the cats and Lambda sensors, and hopefully restore normal fuel consumption. Going out soon.

Will get some help to fit the new SAI hose ASAP then change the rear exhaust box. Any other suggestions please?
« Last Edit: 08 March 2009, 13:54:25 by 2am »
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2am Omega

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Re: Burst hose - Exhaust and MPG Problems
« Reply #33 on: 08 March 2009, 17:40:33 »

No more cobwebs - nothing could survive that blast down the motorway .. touching 6000 revs in lockdown 2nd at 70, and almost 5000 in 3rd. WOW that's power !!

Let's hope any deposits in the cats and Lambda sensors were also expelled. But who knows? Can't detect any difference yet. No more long hair-like wadding dangling from the exhaust tailpipe .. but then none has been seen for a few weeks.

I will monitor fuel consumption to see if any improvement.

Next tasks .. get the SAI hose fitted, and replace the exhaust rear box. How much would you expect to pay to supply and fit that silencer box on my 97R Omega Elite? Any particular supplier recommended?
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Entwood

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Re: Burst hose - Blowing Air?
« Reply #34 on: 08 March 2009, 17:41:44 »

Whilst I tend to agree that the miggie is NOT a boy racers car , and deserves to be driven with sensitivity ... I also believe that the odd "burst" of enthusiasm is not misplaced .. it does several "good" things AFAIK ... I'm sure TB or MDTM will correct any errors /omissions

1. Cleans off the lamda probes
2. Exercises all the elements of the multiram set up
3. Runs the engine somewhat warmer so reducing/removing the condensates that cause the "mayonnaise" around the oil filler
4. Gives a blast of higher oil pressure around the system to help ensure all oilways are clear
5. Exercises the oil pressure relief valve.
6. Higher temps/and flow rates through the exhaust remove acid condensates and reduce he corrosion they cause.

Probably some more ..  ?

For these reasons an Italian Tune Up is both beneficial and enjoyable .. :)
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philhoward

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Re: Burst hose - Blowing Air?
« Reply #35 on: 08 March 2009, 20:18:20 »

Why didn't i just write what Entwood just said??

Last place I worked at, the Financial director was over 70 and drove an S type Jag....everywhere at 1200rpm.  After a few months it sounded sick as a parrot and drove terribly.  It was sent up to the local garage for a diagnosis, but the lads didn't bother in the end - just gave it a damned good thrashing from Redditch to the M42 for 10 minutes.  Restored it to health for him to drive at 1200rpm again for the next few months.
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2am Omega

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Re: Burst hose - Exhaust Problems
« Reply #36 on: 08 March 2009, 21:27:34 »

Quote
The special appeal of my 2.5 Omega Elite is its comfort and smoothness, a wonderful cruiser. I never thrash it, but seek best economy. Typical runs are 5-10 miles, sometimes 20 miles to hospital appointments, occasionally further, rarely going over 2500 revs, sometimes cruising at 60-70 mph but not accelerating hard.

I take your point in the previous post about the chap in his 70's at 1200rpm to highlight the principle but, hey, that's NOT like me.

My Omega only changes into top gear at almost 50mph at over 2000rpm - so cruising at 60-70 mph is 2500rpm or so, not 1200 !! I just don't "floor it" away from traffic lights to get there .. and I keep all 4 wheels on the ground round corners.

But I accept that an occasional burst of enthusiasm can be healthy. I hope the shock of today's speedy excitement and higher "blood" pressure hasn't caused a haemorrhage - no signs of oil yet. In fact, whilst throaty, it remained smooth and dignified !!

Can somebody please respond to my question about cost and source for rear exhaust box.
« Last Edit: 09 March 2009, 10:35:47 by 2am »
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philhoward

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Re: Burst hose - Blowing Air?
« Reply #37 on: 08 March 2009, 21:30:58 »

Genuine Vauxhall on a Trade Card used to be favourite, but looks like they're not supplying decent quality stuff now.  I've got one from "eternalcar" off ebay and it seems fine.  It's aftermarket, but so is Vx stuff nowadays by the looks of it.  Cheap, quick delivery (given it comes from Germany) and fits right.

Might be worth starting a new thread for Exhaust recommendations..?

Didn't mean anything by the 1200rpm comment - just an example of how a gently driven car needs the occasional "exercise"..
« Last Edit: 08 March 2009, 21:31:45 by philhoward »
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2am Omega

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Re: Burst hose - and Exhaust Problems
« Reply #38 on: 08 March 2009, 22:18:59 »

Many thanks for all your helpful comments, Phil - and everyone else.

There's another current thread about Exhaust Rear Box so I may wait a while before starting a similar thread title to avoid confusion .. and follow up your Eternalcar lead, whilst seeing if any other recommendations flow in from here, thanks.

I'm particularly interested in a good value source for "supply and fit" because of my disability. Or is it easy to find someone to fit a purchased exhaust?

« Last Edit: 08 March 2009, 22:23:41 by 2am »
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2am Omega

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Re: Burst hose - Now Another Split Hose
« Reply #39 on: 10 March 2009, 10:51:30 »

The plot thickens ..

.. just found ANOTHER hose which is split where it fits onto the connection point. Can somebody please tell me what is the function of this hose .. and if it would contribute to lumpy engine running and poor fuel consumption on my 97R 2.5 Elite.

Location .. on top centre at back of engine complex towards bottom of windscreen .. just above the words Eco-Tec. There are 4 small diameter hoses, the outer 2 of which are slightly larger. The split hose is number 2 from driver's side, so it's one of the thinner hoses.

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Marks DTM Calib

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Re: Burst hose - Now Another Split Hose
« Reply #40 on: 10 March 2009, 11:16:02 »

Quote
The plot thickens ..

.. just found ANOTHER hose which is split where it fits onto the connection point. Can somebody please tell me what is the function of this hose .. and if it would contribute to lumpy engine running and poor fuel consumption on my 97R 2.5 Elite.

Location .. on top centre at back of engine complex towards bottom of windscreen .. just above the words Eco-Tec. There are 4 small diameter hoses, the outer 2 of which are slightly larger. The split hose is number 2 from driver's side, so it's one of the thinner hoses.



That WILL affet your consumption as its a breather hose.

It effectivly results in an air leak.

Try cutting the split setion off and re-attach it
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2am Omega

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Re: Burst hose - Blowing Air?
« Reply #41 on: 10 March 2009, 13:17:00 »

Thanks .. I will try that, but slightly concerned about shortening by as much as the necessary 2 inches.

Alternatively could I use some "Duck" Hose Repair Tape?
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Re: Burst hose - Blowing Air?
« Reply #42 on: 10 March 2009, 13:20:11 »

Quote
Thanks .. I will try that, but slightly concerned about shortening by as much as the necessary 2 inches.

Alternatively could I use some "Duck" Hose Repair Tape?

It might work, a new hose would be the best bet.


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2am Omega

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Re: Burst hose - Blowing Air?
« Reply #43 on: 12 March 2009, 15:45:11 »

Back to my burst SAI hose .. a friend is coming to fit the replacement long wiggly hose tomorrow morning. May I please ask for guidance.

Is it correct that the hose clips are re-usable and simply squeeze apart with pliers?

Is it a dry fit? or is some lube required?

The top end onto the "flying saucer" valve seems easily accessible. Does the front of the car need jacking up to access the lower end connection onto the fan near the nearside headlight?

Any other tips for a novice please?
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