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John Deere Tractors Discussion Board

Re: A timing

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Posted by Wilamayb on July 07, 2013 at 20:11:51 from (

In Reply to: Re: A timing posted by rosedale123 on July 07, 2013 at 19:02:47:

Since it has a distributor It's most likely that it is a late A tractor which has a cute little flap on the top of the flywheel cover than can be rotated for a peek at the marks on the flywheel.

You may have to pull the flyweel cover to clean the flywheel up enough to see the marks.

When you say that it "starts hard" does that mean it cranks over and over and over without firing up, or does that mean it kicks back on the starter? If it kicks back you may just need to look at the advance mechanism in the distributor. To see that it works just grab onto the rotor and twist it back and forth. Does it twist against spring pressure then snap back when released? If not pull the plate on the bottom of the distributor to access the mechanism. Free it up and try again.

Usually the reason for hard starts is weak spark. Use good ignition parts with a coil proper for your supplied voltage and metal core wires with good properly gapped plugs. These tractors are old and often the wires have been cobbled. If all the above advise doesnt fix your problem you may want to check avialable voltage at the distributor while cranking. Many times small cables have lowered the voltage too much for a good spark while cranking. They run fine once the starter is no longer engaged but wont start while cranking.

The last bit of advise for easier cranking it to look at the arm that controls the throttle plate. Push the throttle ahead just enough to get the throttle plate arm just off its rest for cranking. They usually start best with minimal throttle.


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