Cylinder Head skimming
Pressures leak Testing
An internal combustion engine is subjected to extreme forces and temperatures possibly due to other componet failures. The Combustion occurs between the piston and cylinder head and In time the temperature and forces associated with combustion could warp this surface of the cylinder head. This could lead to the cylinder head gasket ‘blowing’. To eliminate this warping the cylinder head is skimmed, as in the photo of skimmed cylinder head.
The cylinder head is skimmed ready for the new gasket to be fitted
When we pressure test a cylinder head we are looking for any leaks, external or internal. We do this by blanking the water outlets on the cylinder head and then pressurising the cylinder head with compressed air at 60psi. We would then confirm if the cylinder head is leaking.
TEST
WHY
This is a pass or fail test that comes with a breakdown of the test and where the injectors have passed or failed, This is an in and out for trade or retail.