Uprated Essex V6 Exhaust Gaskets?

[Erich Stahler]

Wondering if anyone knows of any exhaust gaskets that are more heavy duty than the standard replacement items?

[anonymous-user]

Erich Stahler said:

Wondering if anyone knows of any exhaust gaskets that are more heavy duty than the standard replacement items?

Silicone, no gasket. So long as the manifold flange is adequate thickness, should be no problem.

[Erich Stahler]

TVRMs said:

Silicone, no gasket. So long as the manifold flange is adequate thickness, should be no problem.

Really, thats interesting most high temp silicon seems to be good up to 300c which I must be ample for manifold to head fixing.

[anonymous-user]

It's what I've used in the past, even on Turbo v6s.

Touring car teams gasket of choice 🙃

[phillpot]

What is 🙃 ?


Where can I get some, nothing coming up on Ebay search

[anonymous-user]

phillpot said:

What is 🙃 ?


Where can I get some, nothing coming up on Ebay search

Apologies smilie issue

[TaimarTurbo]

I've had good results with Permatex Ultra copper, which should be good for 700F/370C
http://www.ebay.co.uk/itm/Permatex-RTV-Silicone-Ul...

[phillpot]

TVRMs said:

Apologies smilie issue

My mistake, I thought the "🙃" was supposed to be a link or something to a particular brand favoured by Touring Car teams.

[anonymous-user]

phillpot said:

TVRMs said:

Apologies smilie issue

My mistake, I thought the "🙃" was supposed to be a link or something to a particular brand favoured by Touring Car teams.

I'm not clever enough to do links Mike...

[phillpot]

TVRMs said:

I'm not clever enough to do links Mike...

Getting the hang of smiley's though ...

[anonymous-user]

phillpot said:

TVRMs said:

I'm not clever enough to do links Mike...

Getting the hang of smiley's though ...

Indeed

[liner33]

RTV is fine but the mating surfaces need to be perfectly flat , its been around 30 years since i worked on a essex but i seem to recall the manifolds had issues with warping ?

[anonymous-user]

Good exhaust builders now provide a flange with adequate thickness.

[chassyman]

liner 33 is quite correct and is what i thought right away on seeing the subject, when you fit the exhaust manifolds you have to draw file them across the fixing holes, each branch individually, you will be amazed how much dip and distortion there is on some of them. it is well worth the effort!!! best regards keith

[Erich Stahler]

chassyman said:

liner 33 is quite correct and is what i thought right away on seeing the subject, when you fit the exhaust manifolds you have to draw file them across the fixing holes, each branch individually, you will be amazed how much dip and distortion there is on some of them. it is well worth the effort!!! best regards keith

yes that is the problem, some of the individual flanges are not mounting perfectly flat, have resolved it but doubling up the gaskets, with a double thickness they seem to have clamped up nice and gas tight.

[plasticpig72]

Sorry Eric but i don't like using 2 gaskets.
Imho it's best to adjust and have all the Exhaust Manifold faces inline.
Alan

[Erich Stahler]

plasticpig72 said:

Sorry Eric but i don't like using 2 gaskets.
Imho it's best to adjust and have all the Exhaust Manifold faces inline.
Alan

In an ideal world would agree with you, but have one more race this season then will be pulling most of it apart over the winter anyway.

[anonymous-user]

Its a classic, manifold flanges are often not on a common plate so the pipes have to be "encouraged" to fit.
They do for a week, and then a weld starts to break and the manifold starts to blow. You have it welded and it moves a little due the welding and so its harder to fit the next time etc...

Individual pipes help the process..





Please ignore the sump

[Erich Stahler]

TVRMs said:

Its a classic, manifold flanges are often not on a common plate so the pipes have to be "encouraged" to fit.
They do for a week, and then a weld starts to break and the manifold starts to blow. You have it welded and it moves a little due the welding and so its harder to fit the next time etc...

Individual pipes help the process..





Please ignore the sump

Thats a beauty of an exhaust system, could I see some pics from above where the manifolds bolt onto the heads please?

Where did you get those made up?

[anonymous-user]

Advanced Automotive in Newcastle. Studs replaced since the pics.