Inliners International Forums General Discussion Engines Rubber or Cork gaskets?

I have replaced the factory orange valve cover with a shiny new chrome one, however, now the thing leaks from the right rear corner all over my clean new motor. I have a cork gasket on now, having replaced a rubber one that also leaked. Should I try two gaskets and if so is cork or rubber better to double up. The chrome cover looks just like the original factory one just a different color.
Thank for the imput
D.D.

Probably the first thing is to check the cover to make sure it is flat. It is not uncommon for the tin covers to be warpped or twisted.

Personally, I have done better with the cork vc gaskets. The rubber seems to have tendency to squeeze out. Generally I just put silcone sealer on the vc, place the gasket on the cover and let it set up a little, then bolt it in place.

Assuming it is a later motor due to your orange comment, there are enough bolts to tighten just one area if there is a leak. Good luck.

Bruce is right about being sure the cover flanges are straight. People tend to over-tighten the bolts and they bend. Also, be sure that all surfaces are clean enough to eat off of, I use lacquer thinner as a final wipe-down.

I like the cork gaskets, but have a different approach on sealing. With the cork gasket, use 3M weatherstrip adhesive on both sides of the gasket.

On the rare occasion when that doesn't work, I have a drastic approach that works, but it's one of those "last resort" tactics. With NO gasket, lay down a heavy bead of ultra-blue rtv on the head. Let it set up for a few minutes, then carefully lower the cover on. Put in the bolts, take them down snug, no more. Then let it set for 24 hours and trim off the excess rtv. This method has never failed me, but to get it apart you have to go in with a sharp, thin blade and cut the cover loose.

The biggest Reason the after market chrome ones leak Is because there is not enough of a rolled lip to hold the gasket in place. I once to had a issue with the after market chrome cover what i did was i rolled the edge a little more& I use Therubber with a little RTV. and That did the trick for me. Maybe it will help for you. hope this helps }[oooooo]

I too use the high temp.RTV and it does not leak.I always carry a spare tube and a sharp knife in the glove box in case of a roadside repair is needed.I only use the cork or rubber gaskets while final adjustments are being made.
EvilDr235

crome acessories are prone to leaking...its inevitable...ive heard of people who take a wire brush to the bottom of the valve cover and that solved their problem...