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

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Piston Fitting

PISTON FITTING

All pistons are machined to the same weight in grams, to maintain piston balance.

NOTE: Pistons and cylinder bores should be measured at normal room temperature, 70°F (21°C).

The piston and cylinder walls must be clean and dry. Piston diameter should be measured 90 degrees to piston pin axis. Cylinder bores should be measured halfway down the cylinder bore (2) and transverse to the engine crankshaft center line.