Re: SMTA won't turn over

Posted by Nat 2 on May 16, 2006 at 05:17:34 from (64.80.110.33):

In Reply to: Re: SMTA won't turn over posted by GordoSD on May 15, 2006 at 16:53:48:

Yes, having one wheel spin backward like that is normal. The spider gears in the differential act like a reversing gearbox when the engine doesn't spin. There wasn't enough traction to turn the engine over.

Your problem was that you used too low of a gear to pull start it. 4th, or even 5th, gives the wheels better mechanical advantage to turn the engine over. It's completely backward from when the engine is turning the wheels, and 1st gives the best mechanical advantage.

There was probably no need to pull start it. What happened is that the starter drive got bound up in the ring gear. All you needed to do was put the tractor in 5th and rock it back and forth by hand. You'd hear a soft pop from the starter releasing from the ring gear. The reason this happens is because the starter and/or ring gear is/are worn.

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