O.S.Max 40 model FP??
09-24-2003 | 07:54 PM
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From: Kirksville,
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O.S.Max 40 model FP??
[:@] I have a n OS Max 40 that is not marked on the side as FP, FX or other. Ther is a make on the underside of the motor mount stamped fp. This is a plain bearing ringed engine that has lost compression after about 1 hour of test running. I ran it rich with Sig 10% 20% oil in short duration runs. After a short time at full throttle it lost compression and is now KAPUTT as far as I am concerned. I have several older OS Max engines from the 70's and they have performed great and still do running the same fuel..Any ideas??
Dasflugmodele
Dasflugmodele
09-24-2003 | 08:08 PM
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From: Mary Esther, Florida, FL
RE: O.S.Max 40 model FP??
If "The Flying Model" would post some pictures, both sides, top and bottom, maybe we could identify the engine and get some ideas.
The FP was a plain bearing engine, but it was not an engine with a piston ring.
Bill.
The FP was a plain bearing engine, but it was not an engine with a piston ring.
Bill.
