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HelicopterEngines Plugs Mufflers Fuel › Omitted Carb Washer
01-20-2003 03:08 AM  15 years agoPost 1
DMShanks

rrApprentice

Salt Lake City, UT

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Man, can't believe I did that. I assembled the main mechanics of my Century Falcon and noticed a thin black washer sitting at the bottom of my parts holder (muffin tin). I pondered this for a moment, then slapped my forehead and said "doh!". When I reassembled my OS50SX-H, I fastened the carb to the engine w/o inserting the washer first. The engine is not easily removed from a Century product, and I really don't want to backtrack at this point. Do you think the washer is critical? Has anyone ran their engine w/o it? Have a great one. Dave

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01-20-2003 08:47 AM  15 years agoPost 2
G.Man

rrProfessor

Bristol

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without it, you are probably going to suffer a lean mix due to air leaks at the crankcase...

Don't Email me as I wont reply - PM Only (spam countermeasures)

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01-20-2003 02:34 PM  15 years agoPost 3
DMShanks

rrApprentice

Salt Lake City, UT

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The o ring is being used, just not the thin washer that sits in the crank opening, below the carb, so the seal is intact. The carb, without the washer, sits a tiny little bit lower in the crank. Thanks, Dave

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01-20-2003 05:50 PM  15 years agoPost 4
GMPheli

rrElite Veteran

W. Bridgewater, MA USA

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I don't know if the 50 is the same as the 61SX, but on mine the carb is insulated from the crankcase. It has a hard plastic sleeve around the neck of the carb that goes into the crankcase, and a rubber coated washer that goes under the carb. This is to try to keep the carb thermally insulated from the crankcase to keep it as cool as possible. Well the rubber was cracking and peeling on my washer so I did not put it back in. It runs just fine. YMMV.

Alan Angus

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01-21-2003 12:54 AM  15 years agoPost 5
DMShanks

rrApprentice

Salt Lake City, UT

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Thanks Alan, the OS50SX-H also has the plastic sleeve...I wondered what it was for and the insulation idea makes sense. I think I'll run it w/o the washer and see what happens. Dave

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HelicopterEngines Plugs Mufflers Fuel › Omitted Carb Washer
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