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73-87 Chevy _ GMC Trucks => Engine/Drivetrain => Topic started by: traumajunkie on February 24, 2015, 06:15:17 pm

Title: Gaskets
Post by: traumajunkie on February 24, 2015, 06:15:17 pm

Hey guys, i have attempted to replace the  push rod cover gaskets with the cork by fel pro on my 84 c10 4.1. I installed then like the parts store said ( blk silicone on the side facing the cover )and put it back together i started her up and noticed a little oil leaking around the corners so i tightened it up and it seam to stop. (Oil pressure gauge read about 30, i dont know what it should read!! So if you know please share) after warm up i drove down the road and saw it dropped to 25psi. I pulled over and looked under the hood and oil was flowing out from the gasket. By the time i go home it was 20psi. What did i do wrong and did i damage my engine?

Title: Re: Gaskets
Post by: enaberif on February 24, 2015, 06:40:51 pm

Fel-Pro blue one piece gaskets and ensure your valve covers are flat. Then get spreader bars to help.

Title: Re: Gaskets
Post by: Engineer on February 24, 2015, 06:42:47 pm

Did you do anything to block the oil drain back holes in the head? Drop any old chunks of gasket down inside the head?

Title: Re: Gaskets
Post by: jetmech on February 24, 2015, 06:55:15 pm

Only thing I see is perhaps the gaskets were able to slide out of their place with the silicone. I like to use brush on Copper Coat on the really clean covers and let it get almost dry before sticking the gasket in place. I doubt your engine was hurt if you were driving normally and didn't run it completely out of oil. Not sure what pressure is normal for a six banger but would guess that 25 with engine warm and freeway speed would be ok, 30-35 would be better.

Title: Re: Gaskets
Post by: traumajunkie on February 24, 2015, 07:17:17 pm

Thank you for the reply, I did the side covers So dont think anything fell in them.. I am thinking of trying to find a rubber gasket if they exist, the cork was kida tights around the covers.. Was i suppose to silicone it to the motor as well?

Title: Re: Gaskets
Post by: Jason S on February 24, 2015, 09:14:26 pm

On I-6 tappet cover gaskets (side cover), I've had the best success with Permatex #2 on both sides of a cork gasket. Of course, ensure the cover and block are thoroughly clean before applying the gasket. 

Title: Re: Gaskets
Post by: rich weyand on February 24, 2015, 10:43:22 pm

Use this stuff to seal gaskets.  Clean gasket and mating surfaces with lacquer thinner.  Rub TiteSeal into both sides of gasket and both mating surfaces, leaving a very thin coating.  Assemble.  End of problem.

http://www.skygeek.com/gunk-t25-66-1lb-gunk-t2566-tite-seal-gasket-joint-sealing-compound-medium-weight-1-lb-tin.html

Title: Re: Gaskets
Post by: traumajunkie on February 25, 2015, 07:37:14 am

Thank you guys I will re do this hopefully before the snow comes