Leaking Combustion Chamber Gaskets

[justjamiefarming]

Hi Guys,

I have just installed new copper gaskets to the combustion chamber caps but can,t seem to stop the leaking from around the edges.

Any Ideas would be apprreciated.

Would an instant gasket application to both sides of the copper work do you think?

[Tubal Cain]

Were they the full face gaskets which are now being supplied instead of the the copper ring gaskets which were fitted originally?

If the answer is yes and you still have the original copper ring gaskets heat them with a blowlamp until they are red hot let them cool and refit them. By heating the copper you will soften it so allowing it to be compressed..

Over time the combustion chamber caps become distorted around the bolt holes and if you refit them with a full face gasket they are unable to make a seal with the cylinder head due to this distortion. You can check the caps with a straight edge to see if they are distorted. If you do find high spots they can be removed with careful use of a file at the edges of the caps.

Gerald

[justjamiefarming]

Hi Gerald,
Thanks for the reply.

The copper rings were missing when the caps were removed and only full face copper gaskets were fitted.

I will remove them and check with a straight edge. If I find distortion, I suppose I could always remove a few thou with the milling machine.

Regards, Jamie.