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Discussion Forum

Farmall H is fouling plugs

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12-21-2001 08:16:19

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I have a 44H and it is fouling the plugs, does my carb have to adjusted or the timing.

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Tom W.

12-22-2001 04:57:16

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 Re: farmall H is fouling plugs in reply to Brad, 12-21-2001 08:16:19  
If your plug fowling is caused by bad rings and high oil usage, you can get non fowlers at the parts store. they screw on the bottom of the plugs and keep the oil off the spark. That is only a temp. fix, but if you only use that tractor once in a while, it will keep you going till you get an overhaul

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12-22-2001 01:10:38

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 Re: farmall H is fouling plugs in reply to Brad, 12-21-2001 08:16:19  
Try advancing the timing a little, if the timing is slow it doesn't burn all the fuel. An old timer set me straight on this when my B was fouling plugs. Are the plugs all black and sooty? May be worth a try, Good Luck - Scott

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12-21-2001 23:28:04

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 Re: farmall H is fouling plugs in reply to Brad, 12-21-2001 08:16:19  
I got a 44 h a few years ago. The people who had it before I did could not get it to run more than 15 minutes without it fouling the plugs. I had planned on a motor rebuild, but after cleaning the tractor up with time spent cleaning the magneto I still use there old plugs and it runs fine. Kyle

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12-21-2001 21:13:55

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 Re: farmall H is fouling plugs in reply to Brad, 12-21-2001 08:16:19  
My Farmall 706 was fouling plugs. I changed plugs and then even changed to a hotter plug. Changed gas, added heavier oil all to no solution. It looked like a diesel sitting there running the corn dryer. Finally, I pulled the air cleaner out and found the air intake to the filter was full of leaves, grass, etc. This caused a huge vacume on the cylinders which caused the oil to be drawn up along the piston and sleeve. It drank oil! Only the Champion 21 plugs would work. After I cleaned the intake pipe everything worked fine. I have heard of the old oil bath aircleaners getting filled up with dirt and deposites. Just a chance. Goodluck

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12-21-2001 17:34:06

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 Re: farmall H is fouling plugs in reply to Brad, 12-21-2001 08:16:19  
Follow all the other advice, then check the mechanical advance on the distrubutor. An IH distributer's breaker plate can be easily modified to give 30 degrees of advance. That and hot plugs will burn today's junk gas better.

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The Red

12-21-2001 10:00:25

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 Re: farmall H is fouling plugs in reply to Brad, 12-21-2001 08:16:19  
Brad warm up the engine. Set the throttle at high speed. Lean the high speed mixture screw until the engine starts to lose RPM. Then open it back up a 1/2 turn. The high speed screw is the angled one on the bottom of the carburetor.

Spark plug wise, I use champion D21 or AC C86. I have a coffee can full of Champion D15s. They don't fire very well in 87 octane gas.

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12-21-2001 08:29:14

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 Re: farmall H is fouling plugs in reply to Brad, 12-21-2001 08:16:19  
Brad-I have a 44H & grew up operating it & 3 other H's (another 44, a 41 & 42). We farmed 880 A of row crop & small grain with 'em in the '50's & '60's, so used them all a lot. If fowling plugs are oily, usually means rings or valve guides are shot. If just hard carbon, check timing, carb adjustment, or perhaps you need a hotter plug. Generally though, when plugs fowl, its an indication of a more serious problem. This is just my $0.02 worth & its probably not what you wanted to hear.

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