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Author Topic: Manifold > Cat Gasket Types - V6??  (Read 1526 times)

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Diamond Black Geezer

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Manifold > Cat Gasket Types - V6??
« on: 02 October 2014, 10:17:02 »
Just noticed on another thread that it might be an idea to change the manifold to cat gaskets on the V6. They look in excellent shape, but that's the problem - the shape.

Mine are circular but showing on the (online) EPC are normal 'gasket shaped' Anyone know why? Part numbers listed is

90499289

Cheers!
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Marks DTM Calib

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Re: Manifold > Cat Gasket Types - V6??
« Reply #1 on: 02 October 2014, 10:18:10 »
They should be circular and genuine ones are a flaky type material.
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Diamond Black Geezer

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Re: Manifold > Cat Gasket Types - V6??
« Reply #2 on: 02 October 2014, 10:19:21 »
Thread here... http://www.omegaowners.com/forum/index.php?topic=126341.0

on his apparently the aftermarket exhaust came with 'O' ring type gaskets... so has mine been replaced? Convinced mine are the original VX cats, though. Plot thickens!
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Re: Manifold > Cat Gasket Types - V6??
« Reply #3 on: 02 October 2014, 10:24:45 »


But I'm trusting Marks DTM and my own eyes, as the ones fitted are definitely round!!  :D
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Re: Manifold > Cat Gasket Types - V6??
« Reply #4 on: 02 October 2014, 10:46:40 »
Never in all my days of titing about with Omegas have I seen a shaped gasket such as that shows on a V6 be it 2.5 through to 3.2 from early C25Xe to Y32SE.
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Webby the Bear

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Re: Manifold > Cat Gasket Types - V6??
« Reply #5 on: 02 October 2014, 11:06:52 »
I went in to Vx and ordered that gasket.... the guy showed me the photo. I said ''no, the one I want is round'' and he said ''ah, I remember now that the drawing on here is wrong''.

order it and it should be the round flaky one that mark mentioned :)

HTH
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Diamond Black Geezer

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Re: Manifold > Cat Gasket Types - V6??
« Reply #6 on: 02 October 2014, 11:14:41 »
Quote from: Webby the Bear on 02 October 2014, 11:06:52
I went in to Vx and ordered that gasket.... the guy showed me the photo. I said ''no, the one I want is round'' and he said ''ah, I remember now that the drawing on here is wrong''.

order it and it should be the round flaky one that mark mentioned :)

HTH


 :D :D :D :D :D :D :D :D :D :D

What can I say? Only that I repeat my statement - I trust Marks DTM (and Mr The Bear) more than Vauxhall!!!  :y
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Nick W

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Re: Manifold > Cat Gasket Types - V6??
« Reply #7 on: 02 October 2014, 11:18:10 »
You can get pattern ones of that shape that work. I think they're also used on certain Astras.
I have one of each type on both sides of mine(3.0l engine and pipes with 3.2 manifolds), as they were acquired from different places.
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Marks DTM Calib

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Re: Manifold > Cat Gasket Types - V6??
« Reply #8 on: 02 October 2014, 11:38:04 »
Yes, not had any issues with pattern gaskets either.

In fact, I have reused them when they are in good condition and similarly had no issues.  :y

The key is making sure you tighten the nuts up evenly.  :y
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Diamond Black Geezer

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Re: Manifold > Cat Gasket Types - V6??
« Reply #9 on: 02 October 2014, 11:52:22 »
Quote from: Marks DTM Calib on 02 October 2014, 11:38:04
Yes, not had any issues with pattern gaskets either.

In fact, I have reused them when they are in good condition and similarly had no issues.  :y

The key is making sure you tighten the nuts up evenly.  :y

I'm having that tattooed on the inside of my eyelids so I don't forget!!! Cheers Mr Calib  :y
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