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Wheelbearing

Onan 20

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Wheelbearing

I have a 520 with 757 hours on it 2nd owner. The engine will start and run fine cold. After one pass the engine will die while under a load on the 2nd pass. Restarting the engine is very tough after. Plugs were dry while trying to restart. So I pulled the carb apart and there was fuel in the bowl. I checkd the filter in the tank. Clean. I replaced the in line filter and found a hole in the fuel line before the pump. Fixed all that. Thought every thing was fixed. And then again it happened. Any hints or help would be appreciated.

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zieg72

Rig up a fuel tank to gravity feed the carb to bypass the fuel pump. My guess that is where your problem lies.

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Wheelbearing

Fuel pump is brand new

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zieg72

Pull the fuel line off the out put and see if it pumps good. I have seen and experienced bad, new fuel pumps before. Also by doing my first suggestion it would rule out a fuel delivery issue whether a pinched fuel line or weak fuel pump.

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qd-16

Gas cap vent clogged?

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WH nut

Check your fuses right side of battery box. You have a bad connection at the fuses

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Brandonsj04

check for spark right after the engine dies. I've had problems where once the magneto was hot it cut out, but would start and run great when cold.

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AMC RULES

Any updates yet?

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