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11-01-2010 | 03:16 PM

#5

billd76

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From: Nottingham, PA

RE: New OS 65AX!!

Quote:

ORIGINAL: ameyam

Thats what I thought as well. Not that I need an engine right now- I have a 72A, FS91SII and a 75AX spare.

Talking of the 75AX, I had issues with keeping it running with the tank installed a couple of inches above the carb spray bar with the engne inverted. It would erratically deadstick and never tune properly. Later when I installed a FS91SII on the same model, I lowered the tank. Flew it for only one Sunday since having done that and with the new engine with no issues. Do you think this could be a tank height problem? I need to know as I was planning to replace the piston-liner otherwise. My mentor ran this engine on the test stand in the interim and reported it runs OK

Ameyam

I have always had issues with a tank that mounted too high. keeps dumping fuel to the carb. Can cause hydostatic lock on the engine, especialy inverted ones.

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