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Messages - Andy H

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5086
Omega General Help / Re: Cleaning of oil breather box
« on: 13 November 2009, 13:02:02 »
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Is it possible to take it off without removing the head?
It is held on by four 6mm bolts. I already had my engine out and on an engine stand so I didn't look to closely at what might be in the way with the engine in the car.



5087
Omega General Help / Re: Cleaning of oil breather box
« on: 13 November 2009, 11:45:59 »


When I first got my last v6 it had done 130,000 miles (allegedly). I had the cylinder heads off when a head gasket failed and so took the breather box off the engine to inspect it. It was totally caked up inside. I got about a cup full of hard black rubbish out of it before giving up and buying a new one from VX.

Poking a paperclip in the top would have been a complete waste of time. If I had managed to shift all the crud it would have fallen into the sump (& possibly blocked the oil strainer......).

If you are concerned (and you should be) find a way of removing it from the engine to clean it.

5088
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There was a thread on here a few weeks back about someones increasingly frustrated attempts at pulling the rear wheel bearings out. I have done a search but I cannot find it  :(

The gist of it seemed to be that ordinary pullers will just break and that if you want to be sure of getting it done right first time then you need to take the whole trailing arm off the car and stick it in a 10 ton press.

Obviously taking the trailing arm off involves shed loads more work than would seem necessary so people have found other ways of shifting the axle from the bearing.

Going to have another look to see if I can find the thread...
Think this is the one Andy http://www.omegaowners.com/forum/YaBB.pl?num=1249414830/1#1
Thats the one :y

Perhaps we should ask TheBoy to add it to the 'How To' section?

Maybe we need a new section for 'you really don't want to have to do this but if you do then here are the instructions'  ::)

5089
There was a thread on here a few weeks back about someones increasingly frustrated attempts at pulling the rear wheel bearings out. I have done a search but I cannot find it  :(

The gist of it seemed to be that ordinary pullers will just break and that if you want to be sure of getting it done right first time then you need to take the whole trailing arm off the car and stick it in a 10 ton press.

Obviously taking the trailing arm off involves shed loads more work than would seem necessary so people have found other ways of shifting the axle from the bearing.

Going to have another look to see if I can find the thread...

5090
Lack of use is your main problem.

Before you condemn the alternator you might like to check that all the battery leads are good. The crimped connections on the big battery leads are prone to deterioration on Omegas.

I have an old Range Rover which doesn't do enough miles. After ruining a perfectly good battery by letting it go flat too often I now leave one of these on the dashboard which seems to do the trick.



It cost me £10 from Maplins http://www.maplin.co.uk/Module.aspx?ModuleNo=98358

5091
Omega General Help / Re: Thermostat on v6 omega
« on: 15 November 2009, 16:50:49 »
Yes.

5 minutes idling or a couple of miles driving and the needle should be starting to move.

15 minutes / 5 miles and it should be steady at between 80 and 90 degC. It may move around between those figures in normal driving but if it drops below 80 (once it has gone above it) then budget for a new thermostat.

If it goes above 90 then start reading the excellent guides here on the cooling fans and (electric) thermostats and flushing the cooling system.

I changed the thermostat on mine about a month ago because it only got up to temperature when climbing steep hills and then dropped again after. Fuel consumption has improved from just under 20mpg to just under 30mpg :y

5092
Omega General Help / Re: Oil change?
« on: 14 November 2009, 13:07:48 »
I have never managed to drive a car up onto ramps, Perhaps they used to work with Austin 7's & Morris Minors? The valance on an Omega would hit the ramp long before the wheel started climbing the ramp.

I have always jacked the car up and lowered it onto the ramps because car ramps seemed relatively stable. I have used lengths of railway sleeper (but they are a lot heavier).

I think the drain plug IS at the back of the sump but can't be certain without going out & having a look.

5093
Omega General Help / Re: Oil change?
« on: 14 November 2009, 12:41:24 »
I find that I need to get my head and one arm directly beneath the downpipe on the passenger side in order to see the darned thing and then to be able to get to touch it.

I use a claw type removal tool and a 1/2" ratchet but it would be a lot easier with the correct sized cup that fits over the oil filter canister.

I raise the front of my car and stand the front wheels on ramps. I wouldn't be happy to work under it if it was only supported on a jack or axle stands.

I wouldn't bother touching the front wheel, it is the chassis that is really in the way........

5094
Omega General Help / Re: pi@@ed off and need help
« on: 14 November 2009, 13:12:31 »
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ive had a pm from rustym95 from rotherham who says he has tech 2
rustym95 did post on here when he bought his tech2. The price seemed far too good to be true though so some people doubted whether it was the genuine article....

5095
Omega General Help / Re: Exhaust pipe price
« on: 14 November 2009, 20:58:53 »
I have mostly fitted my own exhaust systems over the last 25 years.

A few times I have fitted pattern exhausts to Vauxhalls and regretted it. Mostly I have fitted genuine GM and been pleased but I don't ever remember them being double walled. Twice as heavy perhaps....

The only system I have ever known to be double walled was on a 1979 Suzuki motorbike I once had.

5096
Omega General Help / Re: Wing Removal
« on: 14 November 2009, 17:29:10 »
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plastic stud into the wing near the front
Is it one of those studs that has a plastic peg pushed into it to make it open? If it is you can use a parallel sided punch (or the blunt end of a drill bit) to push the peg right through to allow the stud to close up again. If the peg/insert isn't pushed all the way in you can often pull it out with pliers (saves have to crawl around to find it later)

If it is one with lots of frills along it (can't think of a better way of describing it) they usually pull out and can be reused.

5097
Omega General Help / Re: omega lsd diff
« on: 14 November 2009, 18:41:35 »
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as i know all mv6's had lsd, if you want to check jacup the rear so both rear wheels are off the ground and with car in neutral and hand brake off turn the wheel, if the other wheel turns in the opposite direction it has lsd :)
That is how a normal (open or non LSD) differential behaves if you have the handbrake on.

There are three types of LSD
- Friction: uses clutch plates to stop the differential operating until a pre set force is applied
- Viscous: uses the drag of a viscous fluid (oil) to control the differential rotation.
- Lock Up: if the differential rotation exceeds a pre set amount the diff locks up solid.

I would assume that the Omega would use a viscous LSD. Turning one rear wheel by hand with the hand brake on you should be able to turn it (slowly) with the drag of the viscous fluid resisting you and the other wheel turning the opposite direction.

:-? I'd have thought the only thing that confirms for sure is that the handbrake needs adjusting.
Bugger, had my Land Rover hat on. (they have a transmission brake on the back of the gearbox).
Sorry

On an Omega I should have written 'in gear (or park if auto)'

5098
Omega General Help / Re: omega lsd diff
« on: 13 November 2009, 12:35:47 »
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as i know all mv6's had lsd, if you want to check jacup the rear so both rear wheels are off the ground and with car in neutral and hand brake off turn the wheel, if the other wheel turns in the opposite direction it has lsd :)
That is how a normal (open or non LSD) differential behaves if you have the handbrake on.

There are three types of LSD
- Friction: uses clutch plates to stop the differential operating until a pre set force is applied
- Viscous: uses the drag of a viscous fluid (oil) to control the differential rotation.
- Lock Up: if the differential rotation exceeds a pre set amount the diff locks up solid.

I would assume that the Omega would use a viscous LSD. Turning one rear wheel by hand with the hand brake on you should be able to turn it (slowly) with the drag of the viscous fluid resisting you and the other wheel turning the opposite direction.


5099
Omega General Help / Re: Water Pump
« on: 14 November 2009, 17:46:20 »
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Water pump is aux belt driven on the V's unlike cam belt driven on the 4 pots
I knew that it was driven by the auxiliary belt, I was just puzzled by the advice often given to change the pump when the cambelt was off.

5100
Omega General Help / Re: Water Pump
« on: 14 November 2009, 17:34:21 »
Well done  :y

Did you have to remove the cam belt to get the backplate off to get to the water pump?

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