861 ford charging

fordfx413 · Dec 26, 2017

I have a 861 ford. I recently cleaned all the crap out of the carb and installed a new carb kit. I got the tractor running pretty good. Now
its wanting to run ruff and throttle response is not very good. I am also heaving charging issues. If battery gets low enough will it cause
running issues? It still has the generator. Are there any kits out there to rebuild these generators or should i switch to a 12 volt system?
Thank you

Larry NCKS · Dec 26, 2017

Lots would advocate a 12 volt alternator conversion. I'm not one of those.

I have a rebuilder within driving distance that does all my alternator, starter and generator work. Perhaps you do as well???

Mine is Spilker Electric at Beatrice, NE. He doesn't have a website. Google him if interested.

rvirgil_KS · Dec 26, 2017

"Now its wanting to run ruff and throttle response is not very good"

Check your ignition system. Start by checking points gap, then take a piece of heavy paper or cereal box and pull through closed points. Also check for burned points, and cracked distributor cap, bad plugs and/or plug wires

"I am also heaving charging issues. If battery gets low enough will it cause
running issues?" Yes, on a distributor ignition system low battery can cause running issues.

"It still has the generator. Are there any kits out there to rebuild these generators or should i switch to a 12 volt system?"

I would suspect voltage regulator before the generator.

If you want to stay original fix the generator/regulator system.

If you want the least cost, greatest reliability solution switch to 12 volt with alternator. If you switch to alternator, and tractor has charge indicator light rather than ammeter you want a 3 wire, not a 1 wire alternator. 1980 GM alternator works good and are inexpensive. Get the 2 prong plug, loop #2 to output and connect #1 to the light wire that was hooked to generator. replace bulb with 12 volt.

pinball · Dec 26, 2017

I have a 960 ford. Several years ago I put a delco alternator on it. I also put a new zenith carb on it. Best investment I ever made. Starts right up in any weather. Spins it over at any temperature. I have had this tractor since 97. been a good old tractor. I do convert any old tractor over to 12 volts delco alternator. With the price of batteries now it seems to be the best way to go. I also make sure the amp guage is working properly. If I were going to use a tractor for show purposes I would leave it original but I use mine so the dependability means more to me. just my thoughts.

Sean in PA · Dec 26, 2017

You say that you recently cleaned the carb and it started running pretty good. Did you also clean the fuel filter and the tank? If not then the gunk in the system might have clogged the carb back up again. How long was it "running pretty good" before it started wanting to run rough and had poor throttle response?

Dollar Bill · Dec 28, 2017

I recently cleaned all the crap out of the carb and installed a new carb kit. I got the tractor running pretty good. Now its wanting to run ruff and throttle response is not very good.

I am also heaving charging issues. If battery gets low enough will it cause running issues? It still has the generator. Are there any kits out there to rebuild these generators or should i switch to a 12 volt system? Thank you

[b:74c4b7b82d]
First problem[/b:74c4b7b82d] - There are lots of very small passages inside your carb. Most will spray carb cleaner on it and then blow it out with compressed air. The right way is to chase each orifice with the appropriate size tip cleaner. Poor throttle response is likely due to a fuel delivery problem.
[b:74c4b7b82d]
Second problem[/b:74c4b7b82d] - As already pointed out, your charging problem is likely due to faulty voltage regulator. It's your money but you can buy a lot of voltage regulators for what you would spend on a 12 volt conversion - bulbs, battery, alternator, coil, wiring etc...

"Charging problems" can be due to a lot of things. So as not to get ahead of ourselves, do the following and report back.

Put a voltmeter across the battery when the engine is running. If you have a 6 volt system, it should bring the voltage up to about 7.2 volts and hold it there. If it goes above 7.5 volts and keeps climbing, the regulator is not doing its job.

861 ford charging

fordfx413

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Larry NCKS

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rvirgil_KS

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pinball

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Sean in PA

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Dollar Bill

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