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Post Info TOPIC: Mark IV valve cover gasket recommendations
jim larson


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Mark IV valve cover gasket recommendations
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I see there are different options for valve cover gaskets.  Since doing the UV leak test, I have notice one of the valve cover gaskets is leaking.  If I remember correctly, I used the standard valve cover gaskets.  I have the original valve covers, If the make a difference.  I see one venders offers a standard, a thick, and a rubber with steel inserts.  The bolts with the retainers are quit tight, maybe I tighten them two tight.  I didn't using any kind of sealer when I installed them.  Is there a certain procedure for tightened the bolt and a recommended torque?



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Jim L

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Lost in the 60s


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If you have cork gaskets, they are going to leak over time and tightening them only seems to make it worse, as it squeezes the gasket out of position. I use Fel-Pro rubber and the set with the steel insert seems to be getting very popular now. I haven't tried them yet.
I just ordered a set of cork blend gaskets with steel insert for the engine going in the Camaro. Be a while before I know if they work...

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Mitch D.   River Falls, WI

Lifetime member of the "Cars apart Club"

1966 Chevelle SS 396 M20

1970 Chevelle SS 396 M20

1967 Camaro SS/RS 350 M20
jim larson


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I have the old cork, installed aboud 2006, looks like lots of options at summit.  I was considering these as they have the locating tabs like original gaskets.  Thinking the rubber/cork composite might not require re-torque.

 

chevrolet  What is the name or the cork/rubber bend with steel inserts?

 

Are these the ones?  chevrolet







-- Edited by jim larson on Saturday 30th of March 2019 09:32:15 AM

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Jim L

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Probably the second link, if you want the steel core.

Mine are for sbc, so I don't have a direct reference.

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Mitch D.   River Falls, WI

Lifetime member of the "Cars apart Club"

1966 Chevelle SS 396 M20

1970 Chevelle SS 396 M20

1967 Camaro SS/RS 350 M20
jim larson


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Posts: 2734
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Well I decided to go with the cork gasket, I painted it with about 3 coats of silver on both sides.  Then I put a couple of coats of the Indian head gasket stuff  on the valve cove and one side of the gasket.  I made sure the head was clean and dry. Torqued to 80 in lbs.

So I have put about 100 miles on the car since then along with letting it run for 20 Min a couple of times in the garage.  No leaks anywhere  nana, so the leak must have been coming from the passenger side valve cover.  I left drivers side alone as no leaks appeared on that side.

Wish I had done this 10 years ago.cuckoo  Underdash AC I installed last fall still blowing cold air.  We'll know for sure in June or July.

 

 



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Jim L

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