1-Cork with RTV on top and bottom worked well for me
2-I did the 2 back the 2 front then opposite sides going to the back
3-I used a parts cleaner for the valve cover and a wire brush it was nasty but definitely came out shiny and new
4-No worries just take your time and give that valve cover the love it deserves
Cork, plastic, rubber- it doesn't really matter. The valve cover gasket isn't pressure baring or hi-temp anyway. Heck you could prolly get away with just thick bead of RTV if you wanna try it. The type of gasket isn't that important in this case. Just make sure the RTV is thick enough all the way around. Go to Napa or somewhere and get some Permatex "Right Stuff". Good, strong RTV.
Originally Posted by CopperHead_Road
Then again, I live in the mountains and sip (non-taxed) corn whiskey for a living... I may not know what the heck I'm talking about... lol
I don't use either.
Clean both surfaces good.
Use RTV, -Red, Black or Blue (what ever I have handy at the time)
Let it cure overnight.
I have found this to work as well as gaskets for the valve cover.
Been doing it like this on various vehicles since 1974
Sold : 93 YJ, 33s, 4.1, HO 4.0, AX15, d300 flipped
Building 90YJ. 37s, 5.38, 350, 4L60, np241, d44-ARB, D60-spool
Plastic? Never, ever use sealant on cork! It will generally make it squeeze out, cork must be used dry. I vote for the plain RTV on CLEAN surfaces.
I agree!! My first valve cover seal I replaced using cork with RTV, as that's what people on here recommended to me, and it squeezed out and leaked BAD, probably worse than it did before. Thought it was my rear main seal because "hey, I already replaced the valve cover seal so it can't be that." Decided to do it again with dry cork and my 20 year old engine is almost completely dry underneath now
A trick i learned with sealing gaskets is to p[re soak them in maval mystery oil. I used it for all the gaskets when i rebuild a few small egins and seems to be holding up fine. don't think it would work with cork or plastic tho..... I would go cork and eather back or red RTV.
[COLOR="Red"]Lil' red islander[/COLOR]: 1989 Yj 33's on 15 x10 american raceing wheels with 3.5 Tuff country lift kit and 1.5 lift schackles. 4.2L ba 10/5 231 front d30 d35c rear flowmaster SOLD SOLD SOLD
1956 Willys Wag 327 chevy T90/D18 twin stick dana 25/ dana 53
1962 Willys P/U parts truck Chevy 350
[COLOR="DarkGreen"]1984 chevy c10 with sb 400, th350 hurst shift kit, hooker headers, eddy preformer II ntake, eddy thuinder 650cfm 4bbl,mild comp cam, polished and ported eddy heads, flowmaster super 40's[/COLOR]
thanks for all of the responses guys! I ended up ordering a cork one...should be in shortly.
As far as using RTV with cork, I've read a lot of mixed things and most of the people with opinions have STRONG opinions either to use or NOT use RTV. So I figure I'm just going to use a very small amount to get the gasket to stay in place.....thoughts??
1995 YJ Rio Grande | 2.5L 4 cyl | 4" skyjacker suspension lift | 33x10.5 tires on AR rims | 105K on the odo
Plastic, with a VERY thin RTV to hold it in. I go that way because then I don't have to replace it as often. I started back when I had a 69 mustang with solid lifter roller rockers, the darn thing always needed tweaking.