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)

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Oil Pump: Testing and Inspection

Inspection of Pump Cover Flatness

1. Remove all traces of gasket material from pump cover.
2. Place a straightedge across mounting surface of pump cover and measure for wear or warpage using a feeler gauge.
3. If surface is out of flat by more than 0.04mm (0.0016 inch) replace cover.