Do not force the piston pin from the piston;
the piston can be damaged.
If the pin cannot be removed by hand pressure, place the
piston in boiling water for 5 minutes to expand the pin bore.
This will allow the pin to be removed.
Use insulated gloves when handling the heated
Remove the piston pin.
Remove the piston.
When using solvents, acids, or alkaline
manufacturer's recommendations for use.
Wear goggles and protective clothing.
Soak the parts in a kerosene emulsion based cleaner
designed to remove carbon. The cleaner must have a pH of
9.5 or less to avoid turning aluminum parts black. The
cleaner manufacturer or supplier can be contacted about
solution concentration, temperature and soak time.
Do not use a scraper to remove carbon and
scale; the sealing surfaces can be damaged.
The parts can be scrubbed with a stiff non-metallic bristle