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Steve M C/IL 
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Joined: 01 Jul 2010
Location: shelbyville IL
Points: 691
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 Topic: Valve cover gasket Wd45...what's your
Posted: 14 Dec 2010 at 12:25am |
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What's your best method for installing valve cover gasket so it don't leak.New one is cork.Stuck it to cover with Tabors.When tightening down(moderately) the cover spread along center length and gasket stayed with head(dry mating surface).I let both surfaces set a good bit before placing gasket on cover but it still crawled out of position.HELP!!!
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GregLawlerMinn
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Joined: 11 Sep 2009
Location: Lawler, Mn
Points: 1226
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Posted: 14 Dec 2010 at 5:34am |
I like using a thin coat of black RTV on the cover side (thorougly clean and dry) then set the gasket in place. Let set for 1/2-1 hour, checking to see that the gasket does not creep out of the cover. Then I apply a thin coat of the RTV on (thoughly clean and dry) head. Let set for 15 minutes or so, then set the cover down and finger tighten the cover bolts. Let set for a few hours then tighten the cover bolts. The metal surfaces needs to be clean and dry (I like the "scotch brite" type wheels on my angle grinder to remove all the old gaskets and polish the metal, then follow up using brake cleaner on the polished metal.
If the cover is bent, or dented, in the gasket surface, try to straighten, and apply a thicker layer of the RTV in these areas. However, you need to allow the thicker layer of RYV more time to "set up" before tightening the cover.
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What this country needs is more unemployed politicians-and lawyers.
Currently have: 1 D14 and a D15S2.
With new owners: 2Bs,9CAs,1WD,2 D12s,5D14s,3D15S2s, 2D17SIVs,D17D,1D19D;1 Unstyled WC
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Lonn
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Joined: 16 Sep 2009
Location: Назарово,Russia
Points: 29792
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Posted: 14 Dec 2010 at 6:12am |
At the dealership we would clean the valve cover and head surface real clean and dry. Use 3M weatherstrip adhesive, the yellowish colored egg yoke looking stuff, and glue the gasket to the valve cover. To glue it, apply to valve cover and let it dry to the touch or until it is real tacky then apply another coat to the gasket and stick them together. Set the cover gasket down on a flat surface and put some kind of weight on it and let it set overnight. When fully cured, spray the gasket with a couple coats of high tack. Let it dry between coats for 15 or 20 minutes. Let it sit until it is almost dry and install and tighten to spec. Works best for me.
Make sure you get the 3M or whatever brand adhesive that has some oil and heat resistance.
Edited by Lonn - 14 Dec 2010 at 6:21am
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Brian Jasper co. Ia
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Joined: 11 Sep 2009
Location: Prairie City Ia
Points: 10508
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Posted: 14 Dec 2010 at 4:29pm |
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I do the Gorilla Snot (3M weatherstrip adhesive) method. Thoroughly degrease the cover and head with brake cleaner. Glue the gasket to the cover and let it set up. Then I use a thin layer of RTV black to stick it to the head. You're overtightening the cover if it spreads out on the sides.
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"Any man who thinks he can be happy and prosperous by letting the government take care of him better take a closer look at the American Indian." Henry Ford
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David Maddux
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Joined: 13 Sep 2009
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Posted: 14 Dec 2010 at 9:34pm |
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I use clothes pins to hold the gasket in place while the sealant is drying on the valve cover.
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Steve M C/IL
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Joined: 01 Jul 2010
Location: shelbyville IL
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Posted: 15 Dec 2010 at 12:04am |
Brian I'd agree cept it's not that tight.The new rubber discs for the studs aren't more than half squashed.Lot of gap between washer and cover yet.
I brought it in the house last eve after gasket and cover were thoroughly cleaned. This morning I reapplied the tabors to both and let set for 1/2 hr or so then put close pins about every 1 1/2 in. About and hour later I put a film of gun grease on the bottom and put it on.Tightened it litely then a little more and while it spread out a little in the middle,it blew snow for a coulpe hours and is still dry. TA DAH!!
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fixer1958
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Joined: 13 Feb 2010
Location: kansas
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Posted: 15 Dec 2010 at 6:54am |
I use Permatex 'The Right Stuff' It's uber duty black RTV. Comes in a short caulking tube about 6" long with it's own gun. Awesome stuff and will seal anything.
I wouldn't recommend scotch brite disks if there is a chance the residue and/or dust will get in the engine. The dust can take out engine bearings in a very short amount of time.
Other than that they work beautifully.
i use these for on engine cleaning and they work decent enough if you can get most of the gasket off first. different colors for different metals.
3M Scotch-Brite Roloc Bristle Discs
 3M Scotch-Brite Roloc Bristle Discs
Replaces Conventional Wire Brushes and Wire Wheels. These are super tough plastic bristle brushes embedded with abrasives. They wear as they clean, continually exposing fresh abrasive. This is the ideal tool to replace scrapers, wire wheels, surface conditioning discs, and chemical gasket strippers. Stops the danger of loose wires flying back at the operator. Removes coatings, sealant and adhesives quickly, leaving a clean surface ready for subsequent operations. Features: Works well in applications where loading is a problem. Conforms to the workpiece. Use in numerous surface conditioning applications. Much safer to use than conventional wire brushes. Use in conjunction with the 3M Roloc disc fastening system and 3M Roloc disc pad assemblies (see separate entry); requires use of the 3M Roloc+ Holder (07500) |
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