M spark plugs

hillbilly2 · Dec 20, 2014

What spark plugs does everybody like in dubuque two cylinders. Mine has champions right now but they badly need replaced.

Also is there any tips to tuning the carb on a M. Mine is running so rich right now it looks like a diesel. I do have a service manual.

Thanks

James Howell · Dec 21, 2014

We use Autolite 216 in our M, MTs, 40T, and 40S.

Hope this helps.

Dan in Ohio · Dec 21, 2014

My Dubuque tractors get Autolite 216 and my Waterloo
tractors get the Autolite 3116, both are stocked at TSC.
Sometimes using an Autolite 437 on the #1 cylinder on the
Dubuque tractors will make them start better.

Dan in Ohio · Dec 21, 2014

Just found this info on my iPad (sorta works like my brain) you know it is there just slow on retrieval.

Champion H12 - Alternative spark plugs

Replacement spark plugs for Champion H12:
AC Delco 45L
Accel 0168
Accel 168
Autolite 218
Autolite 4316
Autolite 216
Champion H12J
Champion stk 512
Denso W14L
Eyquem 300A
Motorcraft AL11
NGK B-4L
NGK B4L
NGK stk 3112
Torch H4C

buickanddeere · Dec 21, 2014

(quoted from post at 23:57:45 12/20/14) What spark plugs does everybody like in dubuque two cylinders. Mine has champions right now but they badly need replaced.

Also is there any tips to tuning the carb on a M. Mine is running so rich right now it looks like a diesel. I do have a service manual.

Thanks

Non resistor Autolite 216 or 437. Solid core wires. Is the shaft bushing worn in the distributer?

nlastovi · Dec 21, 2014

(quoted from post at 20:57:45 12/20/14) What spark plugs does everybody like in dubuque two cylinders. Mine has champions right now but they badly need replaced.
Also is there any tips to tuning the carb on a M. Mine is running so rich right now it looks like a diesel. I do have a service manual.

I agree with autolite 437. I'd also suggest, while you're on that side of the tractor, check the timing, rotor/cap, and points gap. then move to the other side and replace the filter oil at the correct level. finally adjust the carb.

hillbilly2 · Dec 21, 2014

Thanks for the suggestions. I ended up buying autolite 216.

I ended up with bigger problems than sparkplugs though. I posted awhile back about the governor failing and destroying itself and the cam gear. I tried unsuccesfully to replace the cam gear while the cam was in the motor. In doing so I knocked the plug loose on the other end of the cam so when I started it this morning it sprayed oil out of the bellhousing as soon as it got oil pressure.

I already split the tractor and I will replace the rear crank seal as long as I have it split. ThenI can worry about tuning up ignition and carb.

M spark plugs

hillbilly2

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James Howell

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Dan in Ohio

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Dan in Ohio

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buickanddeere

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nlastovi

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hillbilly2

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