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rtv
Topic Started: Dec 5 2011, 04:49 PM (1,143 Views)
omicronceti3cyl
Advanced Member
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just finished my timing belt/ cam seal /pcv install and want to test everything. My cylinder head cover gasket looks good so I want to reuse it by just wiping the mating surface with some cleaner and putting a thin film of rtv all around it, and I will reuse the bolts and washers. Anyone done this with success? I just want to get the car going......
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crankcase


I think many, including myself, have reused the valve cover gasket. It seals low pressure gasses and oil in, so it should not be a problem if the seal looks good.

I've reused the head gasket only when it was pretty new (installed a couple of weeks). This practice is pretty well poo-pooed upon. I had no problems, but maybe just got lucky.

If you are asking about reusing an old head gasket, you should just replace it. To reuse it might result in immediate trouble. You can get them off ebay cheap.
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vr4


I've also reused a head gasket. The engine ran for 20 seconds.

The vc is cheap enough I'd just replace it but if its still nice and soft just clean it up and reinstall normally.

And for rtv sealant...ultra grey or ultra black. Nothing else.
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nerys
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Grr

what bout the ultra copper stuff? I thought it was better. Ultra black is better?
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undgsx-R
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Self Certified Garage Mechanic

copper will not work on the valve cover.
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vr4


nerys
Dec 5 2011, 08:30 PM
what bout the ultra copper stuff? I thought it was better. Ultra black is better?
Black and grey are the 2 best ones out there.

The oems use them. They dont use copper ;)



I honestly use the grey on the flanges for my aftermarket exhausts on my mr2 and 3000gt with excellent results.
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Scoobs
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:D

ive used blue on many many things, ive actually bought water pumps taht only had partial gaskets and a small tube of blue rtv., ive used orange rtv on a cheapo build i had to push out by sunday morning, and didnt get the car to the shop till satuday afternoon, so parts stores were closed, so i used orange rtv, on nearly everything that needed a gasket i didnt have... needless to say about 4000 miles later the car still runs, with my poorboy rebuild, but leaks oil everywhere lmao, mainly valve cover gasket.
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99metro
putt-putt

I do use a little BB of black RTV on the "corners" of the head where the valve cover gasket is going to seat, and maybe a smidgen of RTV just to keep the gasket on the valve cover during install. The nuts don't need to be he-manned down tight, just wrist-torque tight if that (preaching to the choir). Reusing the valve cover gasket - not a problem.

I put a little RTV on the oil fill cap, let it dry, then took it off. This created a makeshift gasket so oil wouldn't leak out the cap.
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TheKid
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I have always heard the red is better for high temperature application. Which I have always used.


I think taking a peek at this chart can be helpful RTV
Edited by TheKid, Dec 6 2011, 09:53 AM.
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Scoobs
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:D

! Like! :D
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clarkdw


new_kid
Dec 6 2011, 09:53 AM
I have always heard the red is better for high temperature application. Which I have always used.


I think taking a peek at this chart can be helpful RTV
:gp
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vr4


You can use your chart. Ill use 10 years experience in the shop removing leaking items sealed with every color silicone under the sun (including clear) and resealing them never to leak again with grey.


Last week I just did an intake that was puking oil that someone had sealed with the right stuff. While trs is real sticky, it has air pockets in it and in this case one ruptured and allowed an oil leak.

For the record permatex grey is oem speced by ford in addition to imports so I would take that chat with a grain of salt
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omicronceti3cyl
Advanced Member
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Thanks for the responses. I actually just went ahead and put a thin layer of rtv (high temp red- looks orange) on the side of the valve cover gasket nearest the timing belt. The car didnt have a battery in it for a couple weeks and took some doing to get cranked, but seems to run damn strong and cranks as soon as you turn the key.
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