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Location:
Brisbane
Registered:
February 2003
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which gasket cement to use on manifold
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Thu, 22 January 2004 04:33
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hi folks,
i'm replacing (tonight) the intake/exhaust manifold on my 18RC after botching this operation during christmas (after fixing broken welds on the exhasut side)
i've got a plain-vanilla gasket from autobahn (protorque) as there's no performance options for this gasket apart from cutting your own metal version.
i've got a choice of:
Hylomar jointing compound (spraycan)
Proseal Copper XS hi-temp RTV silicon
to coat both sides of hte gasket
when i first built the motor, i use the red coloured hi-temp silicon on the manifolds and anything else that got pretty warm and none of them leaked.
what would you use?
(when i re-assembled the manifold in Dec, i didn't re-tighten the nuts after bolting it up - so it failed within a few days - i didn't read the instructions on the hymolar can...)
tia, charles.
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Location:
Newcastle
Registered:
April 2003
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Re: which gasket cement to use on manifold
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Thu, 22 January 2004 08:14
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Get some Permatex ultra blue or grey.
Use it all the time and never had a problem.
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Location:
Bundaberg, Qld.
Registered:
May 2002
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Re: which gasket cement to use on manifold
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Thu, 22 January 2004 09:17
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 i always use Loctite copper maxx. i dont even have a gasket on the turbo to manifold, turbo to dump pipe and my exhaust flanges. only copper maxx.
do try it.. 
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Location:
Newcastle
Registered:
May 2002
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Re: which gasket cement to use on manifold
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Fri, 23 January 2004 06:09
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Yes Loctite Copper MAXX is excellent and can take the heat of turbo manifolds.
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Location:
Brisbane
Registered:
June 2003
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Re: which gasket cement to use on manifold
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Fri, 23 January 2004 08:22
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hylomar?
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Location:
Brisbane
Registered:
February 2003
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Re: which gasket cement to use on manifold
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Fri, 23 January 2004 09:49
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have ended up using the hi-temp copper/silicon stuff - partly so i can see if the gasket's got squish around every side.
turbo was left attached to manifold but wastegate was re-attached with the copper stuff on the manifold face, and exhaust putty where it joins the dump pipe.
i'll use the Hylomar on other important stuff like timing cover, thermostat housing, sump, etc where i can easily see if the face's have sealed all the way round.
is the loctite copper max a silicon-based stuff? or something solvent based? os something like their stud-lock compounds?
also, thanks for the advice.
charles
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Location:
Brisbane
Registered:
June 2003
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Re: which gasket cement to use on manifold
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Fri, 23 January 2004 09:50
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i used hylomar on my head gasket...as my block after machining still wasnt perfect. It works really well at sealing any small humps and bumps in the surfaces
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Location:
Kita-Ku, Sapporo, Japan
Registered:
January 2003
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Re: which gasket cement to use on manifold
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Sat, 24 January 2004 11:05
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afaik, hylomar is great when you have well fitting machined surfaces, and is used in the aviation industry for this purpose..
i use the red silicon (whtever it's called). withstands the temps, doesn't burn out, and makes it easier to remove the gaskets later  have not tried the copper one yet
Cya, Stewart
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I supported Toymods
Location:
Epping, Sydney
Registered:
May 2002
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Re: which gasket cement to use on manifold
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Sat, 24 January 2004 11:28
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hrm
I may have to try this
I've put the crushable metal gasket on the dump pipe flange of the 1jz, but it hasn't crushed all the way around for some reason.
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