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Messages - johnnydog

Pages: [1] 2 3 4 5 6 7 8 ... 39
1
Omega General Help / Re: Exhaust for 2.5 estate
« on: 15 March 2019, 16:50:43 »
I think I should make an appointment then at the opticians :D
However,  my experience of mixing mild steel and stainless exhaust systems (albeit on classic cars), is that due to the differing expansion rates of mild steel and stainless, it isn't always easy to maintain a gas right joint, especially on male/ female sliding joints. A heat resistant red silicon allows for slight movement whilst maintaining a gas tight seal, and it also aids subsequent separation of the joint, whereas an exhaust paste sets rock hard, with no allowance for expansion movement, and is horrible stuff to remove if you need to separate the joint at a later date. Bolted flanges such as the cat to centre section as on the Omega stand a better chance between differet metals, but I would either keep to all stainless or all mild steel.
With the red silicon, there is also no need to overtighten the clamps - nip them up firmly to hold the two sections together, but overtightening only deforms the pipe, and makes later separation difficult. I would also try and source or reuse the original VX style D clamps, rather than use U clamps, as U clamps are more likely to put an indentation in the pipe it is clamping which makes life difficult when separating later.
Whats as gas right joint? ;D

Same as a  'as gas right joint' ;D

2
Omega General Help / Re: Exhaust for 2.5 estate
« on: 15 March 2019, 16:47:02 »
Are you talking about Terry seeing out 5 years or the car??!!?? ;D
I'm looking at all mine being still around long after that - with the right care! My oldest car is 51 years old, so what makes you think an Omega won't make it to past 50?!? ::). I might struggle to see it get to 50, but you never know....

3
Omega General Help / Re: Exhaust for 2.5 estate
« on: 15 March 2019, 13:56:00 »
I think I should make an appointment then at the opticians :D
However,  my experience of mixing mild steel and stainless exhaust systems (albeit on classic cars), is that due to the differing expansion rates of mild steel and stainless, it isn't always easy to maintain a gas right joint, especially on male/ female sliding joints. A heat resistant red silicon allows for slight movement whilst maintaining a gas tight seal, and it also aids subsequent separation of the joint, whereas an exhaust paste sets rock hard, with no allowance for expansion movement, and is horrible stuff to remove if you need to separate the joint at a later date. Bolted flanges such as the cat to centre section as on the Omega stand a better chance between differet metals, but I would either keep to all stainless or all mild steel.
With the red silicon, there is also no need to overtighten the clamps - nip them up firmly to hold the two sections together, but overtightening only deforms the pipe, and makes later separation difficult. I would also try and source or reuse the original VX style D clamps, rather than use U clamps, as U clamps are more likely to put an indentation in the pipe it is clamping which makes life difficult when separating later.

4
Omega General Help / Re: Exhaust for 2.5 estate
« on: 15 March 2019, 12:32:08 »
Custom made stainless systems can be bought for the Omega, but as has been suggested, original exhausts from Vauxhall to the best of my knowledge have never been stainless.
Terry's own words 'this car has a stainless back box'...  :-X

Unless I'm due for a trip to the opticians, nowhere in this topic can I see Terry stating the back box is stainless...until he later refers to having the invoice from Long Life at Bristol....

5
Omega General Help / Re: Exhaust for 2.5 estate
« on: 15 March 2019, 12:19:41 »
All V6 exhausts cat back will fit, whether 2.5, 2.6, 3.0 or 3.2. As said, only saloons will fit all saloons, and only estates will fit all estates. However, the exit pipes on a 2.6 and 3.2 are longer than a 2.5 and 3.0. I have fitted a 2.5 back box to a 2.6, and just used stainless tips to extend the exit pipes to clear the bumper, and it also gives a nicer finish to the visable part off the exhaust.

6
Omega General Help / Re: Exhaust for 2.5 estate
« on: 14 March 2019, 22:03:55 »
Custom made stainless systems can be bought for the Omega, but as has been suggested, original exhausts from Vauxhall to the best of my knowledge have never been stainless.

7
Omega General Help / Re: Exhaust for 2.5 estate
« on: 14 March 2019, 14:46:11 »
Whether the back box is stainless or not, the pipes certainly won't be, and they corrode around the weld to the back box and on the lower side of the pipes where water sits.
In 2006,  I replaced an original back box (with the stainless angled exit tips) on my 3.2 due to excessive corrosion, with a genuine original again with the stainless angled tips on the the exit pipes ( VX aftermarket are mild steel with 90 degree angled steel tips, and they rust as any other exhaust component)
There different qualities of stainless though - 304 grade is pure stainless steel and will not rust, whereas lower grades such as 409 have an amount of mild steel in them, and although described as stainless, will still corrode away albeit at a slower rate than a mild steel exhaust.
However I have yet to see a stainless VX exhaust on an Omega apart from the exit tips on the original fitment. A magnet is the best test.

8
Omega General Help / Re: Exhaust for 2.5 estate
« on: 14 March 2019, 09:49:52 »
You say that this is your best Omega, so from that you aren't expecting it to be destined for the scrap yard yet.
You say you have checked all likely components against possible MOT failure, so in my opinion, your options are -
1 - Take it for its test and hopefully drive away happy
2  - If it fails on your suspect exhaust, drive it away and repair / replace as necessary
3 -  Replace the exhaust before the MOT which will show good intent to the tester and again drive away happy.
It is pointless making a mountain out of a molehill; unless of course you actually know of other issues that may cause it to fail, but from you say, just take it and see what happens, and fix the exhaust prior to a retest. You'll worry yourself into an early grave otherwise!!!

9
Omega General Help / Re: rear brake pins
« on: 10 March 2019, 20:16:25 »
There's is all the info you need in a topic from 2014 titled brake pad retaining pins.
It depends whether you gave solid or vented discs.
From memory vented pins are 86mm long and the springs 56mm wide - solid discs pins and springs are obviously shorter / narrower.
The vented pins / springs are nigh on impossible to find these days,  and only from Vauxhall (If still available).

10
Omega General Help / Re: Monroe Air Shock conversion
« on: 10 March 2019, 20:09:09 »
What reason do you want them for? Towing?
I used to have a very similar set up as the standard fitment on a 2.0 CDi Cavalier many years ago ( mid 90's?).
They were very good, but the only downside was that if you needed to tow, you had to visit an airline or have a portable tyre compressor/ pump with you which obviously delayed the journey. Equally, the suspension had to be deflated to its correct level after towing otherwise the car looked like a dragster!. There was no pressure gauge on the Cavalier, but I believe the Monroe set up does.
I presume you are thinking about it for towing, otherwise I would just go for shorter but firmer rear springs (to keep the ride height the same as original).
A built in self levelling system with its own compressor is obviously the best system, but is going be very costly to install and is likely to be cost prohibitive.

11

Thought pads was metal plate outside with spring clip into the piston :-\

I think you have got confused there.....
The early pads (9192123) with the hook shaped ends on the metal backing have the spring clip into the piston, whereas the later pad (9192124) fitted to the majority of Omegas have the springs on the outer edge, where the brake pad wear indicator clips on the inner nearside pad. The spring tension is taken up when the caliper is swung down over the pads.
I've not seen any definitive answer to the point about which side to place the pad with the rivited metal backing shim but I agree - I would be inclined to put it against the piston.

12

Net result was thus:

https://photos.app.goo.gl/xyXcLsEjwpYP8xqz7


Bet the neighbours loved you with all that lot going.... ;D

13
Omega General Help / Re: High RPM sound
« on: 07 March 2019, 16:03:42 »
It is very difficult to diagnose particular a engine noise, as everyone's perception and description of a 'rattle' is different. I would try to get a trustworthy third party to pinpoint the area of the noise ie whether it is the top off the engine, bottom end or a vibration / resonance, or just from an ancillary component. The description you gave doesn't help really without actually hearing it.

14
General Car Chat / Re: new (to me) car time soon
« on: 16 February 2019, 23:30:13 »

What's a manual?  :-\ :-\  ;)
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Is it not that book in the glovebox? ;D :D ;D

15
General Car Chat / Re: new (to me) car time soon
« on: 16 February 2019, 13:15:12 »
I've had a Hyundai Santa Fe Premium SE auto (manuals are available too) 2012 - 2018 shape, and a brilliant vehicle. Exceptionally comfy, and a great towing vehicle. A 2.2 diesel (later ones from 2015 are Euro V1 engines), 5 year / 100k warranty too. Never any quibbles from Hyundai about any warranty issues either.
Premium SE has loads of toys, including self levelling suspension which isnt phased with a heavy trailer.
Depends if you want an SUV or saloon car. Only in a 2.2 diesel, but loads of torque. Reviews praise their towing capabilities.
I couldn't fault it.

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