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850 woes

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Bottomboard5

10-23-2005 13:24:37

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After running my 850 1957 ford tractor which starts great and runs great, until 45 min to one hour..it then starts popping and clogging up..it has fresh gas...any idea for a fix? thanks

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RAB

10-23-2005 13:42:47

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Re: 850 woes in reply to Bottomboard5, 10-23-2005 13:24:37

Fuel or ignition?
Check spark quality when it plays up. If it is weak or yellow, prolly ignition.
Simple as tank vent? - vacuum will starve engine. pressure might flood engine.
Rest as others, but try to dignose fault before changing everything that doesn"t need changing!
Regards,RAB

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paul

10-23-2005 13:32:07

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Re: 850 woes in reply to Bottomboard5, 10-23-2005 13:24:37

This can go many directions, but I woud start with a condesor or coil overheating.

Eventually ours ended up being a bad distributir shaft, let vapors into the distributor, and just shorted it out. Took a long time to eliminate everything else.

Can also be your fuel is vaporizing - too much heat on the fuel line.

We moved the muffler out & up like other tractors, got heat out from under the tank. We put the coil on an inch or so block of wood with longer bolts - insulated it from the heat with the wood, out into the airflow a little bit. Helped it out.

Condensors go bad for me a lot, heat sensitive.

If you are running lean, even a fuel line slightly plugged, leads to more heat.

They run these fellas pretty hot, anything you can to cool them down helps if you run them hard.

--->Paul

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old

10-23-2005 13:29:58

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Re: 850 woes in reply to Bottomboard5, 10-23-2005 13:24:37

Sounds like you might have a coil going bad.

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