valve cover gasket

[dddaaa]

I replaced the valve cover gasket on a 95 metro 3 cylinder and it still leaks oil. I put "black magic" gasket seal on it and drove right after replacing gasket and added on black magic. Does the black magic gasket sealant need to dry 24hrs after applying it?

[91Caprice9c1]

Directions for you particular choice of sealant should be printed on the container. I, for one, have never worked with "Black Magic," but, have had excellent results with "The Right Stuff."

Can you pin-point the origin of the leak? These engines like a dab of sealant at the joint where the cam caps meet the valve cover sealing surface prior to installation of the valve cover. Did your gasket come as a kit with replacement seals for the four valve cover bolts?

Other places to look might be the cam seal (under timing cover, behind sprocket) and the distributor o-ring. And, of course, use a torque wrench.

-Matt

[dddaaa]

Directions only say let skim over for 10 minutes before assembling. Drys in 12-24hrs. Leak is towards middle of gasket at front. I torqued it. Sealant is high temp Versachem Mega Black Silicone.

Originally Posted by 91Caprice9c1

Directions for you particular choice of sealant should be printed on the container. I, for one, have never worked with "Black Magic," but, have had excellent results with "The Right Stuff."

Can you pin-point the origin of the leak? These engines like a dab of sealant at the joint where the cam caps meet the valve cover sealing surface prior to installation of the valve cover. Did your gasket come as a kit with replacement seals for the four valve cover bolts?

Other places to look might be the cam seal (under timing cover, behind sprocket) and the distributor o-ring. And, of course, use a torque wrench.

-Matt

[91Caprice9c1]

That seems very strange to me. How does the air cleaner housing look beneath the air filter? I would inspect the PCV hose for clogging, replace the PCV valve and make sure the port on the intake manifold where the valve mounts pulls a nice strong vacuum.

There should be no need to apply sealant to any area of the sealing surface except for where the caps meet the head.

Check the head and valve cover for flatness with a straight edge and feeler gauges, and be sure that the gasket is seated properly.

Aside from that I'm a little out of ideas. I haven't heard of a leak developing in this location before.

-Matt