I am replacing the intake gasket on my 94 z28 it is leaking oil down both sides in the back, I heard this is common. any suggestions or do's and dont's before I start, thank you, Allen

 

DON'T use the cork end gaskets. Clean all mating surfaces like a mirror. The only stuff worth using is Ultra Black from Permatex. Run a 1/4 bead 1/2 inch onto the intake gaskets. Give it about 3 minutes to "skin" over before putting the intake on STRAIGHT down (DO NOT SLIDE IT ONCE IN POSITION). Split the intake bolt torque into 3 steps. Don't forget the torque sequence in a circle from the center to the end.

 

Is there something wrong with Permatex Ultra Copper? I used it over the black primarily due to its higher temp rating.

 

use permatex "Right stuff" similar to the ultra black but sets up alot quicker.....you can run the car as soon as you get finished.


You don't need a real hi heat rating for the intake......the right stuff should handle any area on an engine with no problems, use it all the time....it is a little more expensive

 

take 3 times around tightning until you hit final torque

 

well got it all apart today, wasnt to bad, exept that when you take the bolts out all of the dried thread sealant goes into the engine under the intake, cleaned it best I can and will change oil when I am done, this should be oj I hope, will clean intake and throttle body up unless I find a new one tonight, oh yea one more question would you guys suggest just leaving in the injectors or taking them out before reinstalling the intake. thank you again for all the good advice. Allen

 

Also after about a weeks worth of driving retorque all the manifold bolts.

Nothing at all.

 

If you take the fuel rails off it's a little easier to manuver i think, plus polish them up while your at it (you'll love them a lot more)

 

well finished job now waiting 48 hours to see I f I did everything correctly. will start it tomorrow. is there any thing that needs to be done to the fuel system since I relieved the pressure on it beefore starting back up. also I am changing oil just to be on safe side. Allen

 

Turn the key on without starting. If no leaks, you're good to go.

 

well drove car today, all seems good, although there were 2 drips of oil but think there is still some oil I didnt clean up on the block ands such. now I need a tune on it. also for some reason someone had a kenny brown strut tower brace on it with no mods at all. dont think I will put that back on any way thank you for the help. Allen