Running timing late B john deere

Elmer Dupont · Jan 20, 2013

Can someone tell me what the timing for the spark is when the engine is running on a late model (1951) John Deere B. I am guessing about 30 degrees btdc. I know how to check and adjust everything but I can"t find this spec. Thank You

Pappy · Jan 21, 2013

My book shows 25 degrees advance for both magneto and distributor.

John T · Jan 21, 2013

I also prefer no more then 25 BTDC. On older all fuel tractors they often (on distillate) ran 30 BTDC but thats a bit fast for gasoline in my opinion...

John T

Geo-TH,In · Jan 21, 2013

JohnT,
How are things in the sun shine state? Hear you are going to get a blast of cold air soon after we get in Indiana. Hope the heater works in the RV.
George

John T · Jan 21, 2013

Been mostly high sixties to low eighties so far.. RV has a good forced air t stat controlled furnace so not a problem.....

Keep warm

John T

guido · Jan 22, 2013

Hello Elmer Dupont,

I assume your engine is running, and you need more power? To get the most power out of your engine do the following. When all the rest of the adjustments have been done,valves, plugs, carburetor, manifold leak test. Start and run the engine to normal operating temperatue, hook up a vacuum gauge in the intake manifold. Before you start the engine loosen the distributor so as you can move it. Keep the hold down tight enough , so it won't turn on its own. Start the engine and set the idle about 1000 R.P.M.'s. While looking the vacuum gauge, turn the distributor until you get the maximum pressure on the gauge. This is where the engine will produce the most power. Don't forget to tighten the distributor when you shut down the engine,set the idle down before you do that also.
Good Luck...................Guido.

Running timing late B john deere

Elmer Dupont

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Pappy

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John T

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Geo-TH,In

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John T

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guido

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