Operation CHARM: Car repair manuals for everyone.
Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the logical successor to CHARM, I recommend you try it!

Link: lemon-manuals.la

Compression Check: Specifications



Compression

Minimum pressure is 101 psi. Lowest compression reading should be within 75% of highest compression reading.

For detailed testing procedure see Compression Test. Testing and Inspection