starter hang up

Indiana Mike 2 · Aug 1, 2014

Oliver super 55 starter hanging up. This is my second rebuilt starter. Do I need to shim it?

cole in mo. · Aug 1, 2014

May have some bad teeth on the flywheel.

Indiana Mike 2 · Aug 1, 2014

I had read that it could be the actual starter button..it has a key and separate button..I thought dad would always shim the starter to keep it from hanging when teeth on flywheel were a problem. I suspect that is the real issue...hoping for easy fix. If the gear can't engage as deep it should help it release shouldn't it?

Indiana Mike 2 · Aug 1, 2014

when it hangs up it will release if I turn off the key.

T.R.K. · Aug 1, 2014

How would you shim that starter?

I have a Super 55 and yes, the starter does hang up. It did that back in the '80s when I used to plow my Aunt's garden too.

What I think is happening is there is nothing to make the bendix disengage from the flywheel once it engages. And:

If the battery/cables/starter/ground connections are not sufficient to get the engine rolling over quickly when you hit the switch, the bendix engages the ring gear and just stays there. Until you remove the starter, spin the bendix back down to its park position, and charge the battery.

How would you shim that starter anyway? Ream the mount holes?

Indiana Mike 2 · Aug 1, 2014

I remember my dad making shims....like gaskets that fit onto front of starter.. he used copper...might have been flashing...three or four that would fit between starter and mounting. just enough to pull it back from flywheel a fraction so it would let loose of bad teeth on flywheel. going to try it tomorrow...cant believe it is the starter button.

Steve@Advance · Aug 1, 2014

First, be sure the starter is not still trying to run, as in the switch linkage sticking.

Don't think shimming is going to fix it. But, just to be sure, pull the starter off and look at the wear pattern on the starter gear. See if the gear appears to be damaged from going too far into the flywheel gear. If it is, could be something up with the crank thrust bearing, letting the flywheel move too far forward, but let's not go there for now...

What's "supposed" to happen is, the gear spirals into the flywheel when the starter motor begins to spin. The gear remains in the flywheel gear until the engine starts. Even if the engine does not start, and you let off the switch, the gear remains engaged but not turning. Once the engine starts, the force of the turning flywheel gear spirals the starter drive out of engagement, back to the retracted position on the starter shaft.

If the starter drive looks good, feels good, ratchets out like it should, the spring and bolts are good, just oil the spline shaft and try it again. Sometimes slightly revving the engine will kick it out. If it still hangs up, try replacing the starter drive.

Indiana Mike 2 · Aug 1, 2014

Hmmm. ok thanks

starter hang up

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cole in mo.

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