Z20LET Rocker Cover

[7even]

Hi
My 2003 coupe astra turbo has issues with oil seepage through the rocker cover even after replacing
the gasket etc. Can anyone advise if a replacement part can be found for sale and where to look?

Thankyou,

Warning: This is an Old Thread This discussion is older than 120 days. information contained in it may no longer be current . Please think of the children before resurrecting this ancient thread!

[guy 27]

Did you use genuine or aftermarket gasket?

[7even]

Did you use genuine or aftermarket gasket?

The gasket was a genuine GM gasket. Looking to see if there are any aftermarket covers for sale or any ideas on repairing the
cover like getting it coated by a plastics company or even a heat proof paint?

[adam_92]

Did they use a gasket sealer all the way around the gasket? @faneca had his replaced by a mechanic who used the sealer everywhere and it leaked again very quickly. Sealer should only be used on the half moon caps at the end of the cams

Sent from my GT-I9505 using Tapatalk

[faneca]

Did they use a gasket sealer all the way around the gasket? @faneca had his replaced by a mechanic who used the sealer everywhere and it leaked again very quickly. Sealer should only be used on the half moon caps at the end of the cams

Sent from my GT-I9505 using Tapatalk

Fixed

And a little spot on corners.

[adam_92]

Nope, nothing on the corners. Its not needed.

Sent from my GT-I9505 using Tapatalk

[faneca]

Nope, nothing on the corners. Its not needed.

Sent from my GT-I9505 using Tapatalk

@Jonno_OPC did otherwise and mine hasn't leaked.

[Jonno_OPC]

Yeah, we just seal the half moons and in the corners of the cam bearing caps. I wouldn't leave the corners of the bearing caps dry, if it leaks there its right into the timing case.

[Kennedy]

I use grease on every seal, always works. If you have changed the rocker cover gasket and it still leaks then the cover will be warped. New cover needed then!