Toro 724 reverse disc movement ? - Snowblower Forum : Snow Blower Forums
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post #1 of 34 Old 04-25-2014, 02:38 PM Thread Starter
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Toro 724 reverse disc movement ?

Toro 724 38050. I'm replacing the drive shaft bearing and would like to know if a little bit of wobble/movement, at the edge maybe 1/16 in, is normal on the reverse disc? Or, should it be completely tight ?
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post #2 of 34 Old 04-25-2014, 02:45 PM
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Toro 724 38050. I'm replacing the drive shaft bearing and would like to know if a little bit of wobble/movement, at the edge maybe 1/16 in, is normal on the reverse disc? Or, should it be completely tight ?
yeah that is normal. it is all good.

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MAHALO!!!!!!!!!
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post #3 of 34 Old 04-25-2014, 03:29 PM Thread Starter
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Thanks ! I've got the whole traction assembly apart, in order to replace that shot bearing, and wanted to make sure before I put it all back together again.

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post #4 of 34 Old 04-25-2014, 03:36 PM
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Thanks ! I've got the whole traction assembly apart, in order to replace that shot bearing, and wanted to make sure before i put it all back together again.
YEAH SURE you betcha no problem, anytime!!!!!!!!!!!!!

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post #5 of 34 Old 04-25-2014, 03:43 PM Thread Starter
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Btw, I seem to have an extra washer. According to the Toro parts diagram, one goes between the top of the reverse disc shaft and the bearing. The second between the bearing and the spacer. I've got a third, maybe between the spacer and the roll pin or as the second between the bearing and spacer. There's certainly enough room and may "tighten" things up a bit.??

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post #6 of 34 Old 04-25-2014, 04:21 PM
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Btw, I seem to have an extra washer. According to the Toro parts diagram, one goes between the top of the reverse disc shaft and the bearing. The second between the bearing and the spacer. I've got a third, maybe between the spacer and the roll pin or as the second between the bearing and spacer. There's certainly enough room and may "tighten" things up a bit.??
THE correct term is thrust washer. and yes that would help.

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post #7 of 34 Old 04-25-2014, 04:34 PM Thread Starter
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Oooh, I love it when there's "dirty" talk in the forum

Thanks, I'll add it as the second thrust washer between the bearing and the spacer. One odd ball spacer. It's totally flat on one side and concave on the other...very bizarre.
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post #8 of 34 Old 04-28-2014, 05:01 PM
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DID you getter done???????????

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post #9 of 34 Old 04-28-2014, 06:07 PM Thread Starter
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Originally Posted by POWERSHIFT93 View Post
DID you getter done???????????
Ha, you beat me to it.

Yes, all back together and tight as a drum, even the slight wobble is gone . Thanks again for your input.

The one thing that the service manual omits is how tight the nut on the eye bolt should be (on the hex shaft with drive wheel). I have to take the bottom cover off again anyway because the machine is going faster in 2nd gear than it is in 3rd. My feeling is that the eye bolt nut tightness is affecting this, or the traction disc is slipping??

I don't have it particularly tight because of the 2 spring washers. Plus, the original setting wasn't accurate because someone had previously disassembled it.

Lastly, the engine runs rough at slow speeds and no matter of fiddling with
the mixture screw smooths it out. I am going to change the spark plug and get some fresh gas and give it another go.Other than that, seems all is in good shape.

"Talk to me Goose"

Last edited by rapscallion; 04-29-2014 at 11:35 AM.
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post #10 of 34 Old 04-29-2014, 01:30 PM
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Hi rapscallion,
I have a 38050 as well. The cure for the rough low idle is a carb clean and rebuild. Most likely your idle circuit is fouled a bit behind the jet screw. Also the bowl nut behind the high speed jet has very small holes between its threads that can become clogged. A good cleaning and replacement of your bowl gasket, float needle and seat should make her purr. MH

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