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 spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)

Or, hide this message: temporarily or permanently

Compression Check

Engine Cylinder Compression

Engine oil temperature at least 30 °C (86 °F)
New 11.0 to 14.0 bar pressure (159.54 to 203 psi)
Wear limit 10.0 bar pressure (145 psi)
Maximum difference between cylinders 3.0 bar pressure (43.51 psi)