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25LA Problem

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Old 07-30-2003, 01:49 AM
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Chuckr53-RCU
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Default 25LA Problem

I had a problem with an OS25LA engine last weekend. After priming the engine to start it, attaching the glow starter, and applying the starter to the spinner, the prop turned as if to strart, but froze to a stop after spitting fuel from between the cylinder head and cylinder in the back.

Weirdest thing. If I just turned the prop by hand, no problem, it feels normal. The second I used the starter on the spinner....it freezes up after a short few seconds of spinning, spitting out fuel from the back.

What could be the cause? and what's the repair?

Thanks
Old 07-30-2003, 01:50 PM
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Bax
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Default 25LA Problem

The O.S. Max LA-series of engines have bushing-supported crankshafts. If you use an electric starter, you're basically jamming the crankshaft back against the rear cover. This will make it difficult to turn the engine over. Use a starter stick and hand-prop the engine. It should start up nicely.
Old 07-31-2003, 01:13 PM
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Chuckr53-RCU
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Default 25LA Problem

Thanks...I'll try it.

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