Omega Owners Forum

Omega Help Area => Omega General Help => Topic started by: itonks on 15 August 2010, 22:52:10

Title: 2.5 / 2.6 head gasket difference???????
Post by: itonks on 15 August 2010, 22:52:10

Hi can anyone tell me if there is any difference between a 2.5 and a 2.6 cylinder head gasket ?
Also my 2000 2.5 omega as started used lots of oil (no leaks) but oil light started to come on went warm on tick over but goes out if revs increased slightly any ideas ?

Title: Re: 2.5 / 2.6 head gasket difference???????
Post by: Darth Loo-knee on 15 August 2010, 23:15:35

Quote

Hi can anyone tell me if there is any difference between a 2.5 and a 2.6 cylinder head gasket ?
Also my 2000 2.5 omega as started used lots of oil (no leaks) but oil light started to come on went warm on tick over but goes out if revs increased slightly any ideas ?

Yes the 2.6 and 3.2 are a multi layer gasket where the 2.5 and 3.0 are not :y

Title: Re: 2.5 / 2.6 head gasket difference???????
Post by: itonks on 15 August 2010, 23:30:31

Will the 2.6 gasket fit a 2.5 ??

Title: Re: 2.5 / 2.6 head gasket difference???????
Post by: Darth Loo-knee on 15 August 2010, 23:37:40

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Will the 2.6 gasket fit a 2.5 ??

Why not fit the correct one? :-?

Title: Re: 2.5 / 2.6 head gasket difference???????
Post by: itonks on 15 August 2010, 23:45:14

Been given 2.6 head gaskets for nothing but have not started to strip heads off my car yet so was just checking if anyone knew before I started.

Title: Re: 2.5 / 2.6 head gasket difference???????
Post by: Martin_1962 on 16 August 2010, 08:20:36

Different bores

Title: Re: 2.5 / 2.6 head gasket difference???????
Post by: itonks on 16 August 2010, 13:10:31

going to try and see if they fit as being multi layered steel they will act like the uprated ones you can get for k series rover engines .As driving hard for 70 miles a day means head gaskets only  seam to last 12 months (running on gas as well.) :y

Title: Re: 2.5 / 2.6 head gasket difference???????
Post by: TheBoy on 16 August 2010, 13:28:50

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going to try and see if they fit as being multi layered steel they will act like the uprated ones you can get for k series rover engines .As driving hard for 70 miles a day means head gaskets only  seam to last 12 months (running on gas as well.) :y

v6 head gaskets are very robust.  Incredibly rare to see one fail, beyond weeping coolant to outside of block.

The V6 doesn't need MLS type it would appear...

Title: Re: 2.5 / 2.6 head gasket difference???????
Post by: albitz on 16 August 2010, 13:42:34

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going to try and see if they fit as being multi layered steel they will act like the uprated ones you can get for k series rover engines .As driving hard for 70 miles a day means head gaskets only  seam to last 12 months (running on gas as well.) :y

As the bores are different and I would imagine the gaskets are of different thickness you will be wasting your time if you try to use the 2.6 gaskets. ;)
If your engine is blowing head gaskets on an annual basis then there is something very badly wrong with it, regardless of mileage covered. :-/

Title: Re: 2.5 / 2.6 head gasket difference???????
Post by: itonks on 16 August 2010, 14:22:26

Third omega v6 I have had each one at some point I have needed to change the head gaskets may be running on lpg causing the problems or just the mileage I do each car has been over 150 thou. (always at the speed limit  ;) )

Title: Re: 2.5 / 2.6 head gasket difference???????
Post by: TheBoy on 16 August 2010, 14:24:48

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Third omega v6 I have had each one at some point I have needed to change the head gaskets may be running on lpg causing the problems or just the mileage I do each car has been over 150 thou. (always at the speed limit  ;) )

So you've had to change a HG on each Omega once? Its not actually blowing a gasket multiple cars on the same car?

Also, I bet the HG failure is just a water weep out of the back of one of the heads?