What is acceptable leak down on N62 ?

[aureliusmax]

Originally Posted by wpoll

Great advice but all rather hard to do on an engine that is not (yet) in a car...

You can perform a compression test with the engine on a stand, and apply electrical power to the starter. Some engines have the starter on the engine block (GM style V8s) and others have them bolted on the transmission side. You may need to also have the transmission bell housing installed to the engine block to install the starter.

The reading on the gauge won't be the same as a warmed up engine, it will be less.
What you would look for is minimum allowable difference between cylinders, and minimum compression for ignition.