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At 02:27 PM 10/19/2005, Chris wrote:
What should I do to commission this engine?
A lot depends on the exact configuration of the engine. If it has
chrome cylinders, rusty bores is not something you need to worry
about. If they are steel, I'd do a boroscope (sp?) inspection before
anything else. I'd also pre-lube the engine. After this many years
it is likely the engine will not make oil pressure without a
prime. Also, drain and discard any oil that may be in the tank. If
you want to be really fastidious, pull one or both cylinders on one
side and eyeball the cam.
Motor the engine on the starter until it develops oil pressure on its
own. Check the timing and make sure the carb has fresh fuel in it
and does not leak. Then, fire it up. Follow the break-in procedure
in the Continental overhaul manual. Avoid excessive ground running
as you can develop a glaze on the cylinder walls that prevents proper
ring seating. Once you have determined the engine is airworthy,
leave it alone or pickle it until you are ready to fly. Do NOT
ground run it at regular (or irregular) intervals and do not turn it
over by hand. Both practices are counterproductive.
Any bets on it being okay?
No money here... ;) Too many variables.
John Cooper
Skyport Services
PO Box 249
4996 Delaware Tnpk
Rensselaerville, NY 12147
518 797-3064
Fax 518 797-3865
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