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post #1 of 8 Old 04-17-2016, 11:06 AM Thread Starter
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Cman snow blower

Cman  snow blower-img_7529-3-.jpg the back pully moves in and out 1/16 of a inch . Is the bearing shot or is it the Worm gear and brass bushing . Any ideas , older cman 15-years old . Thanks

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post #2 of 8 Old 04-17-2016, 09:24 PM
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It sounds ok to me. If it wobbles when spinning, then you have a bad bearing Push from the side of the pulley cross ways, to check.




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post #3 of 8 Old 04-18-2016, 04:56 PM
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If there is no side slop, I wouldn't worry about 1/16" back and forth play. That's just the clearance inside the gearbox going back and forth.

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post #4 of 8 Old 04-19-2016, 01:14 AM
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This is a Craftsman model 536.88626 I pulled just for reference. I agree with the other guys, 1/16" I wouldn't worry about. If it's actually a little more or causing belt/idler issues, you probably have some stuff going on inside the auger gear case. You can cheat and put a shim in front of the impeller shaft and bushing #330 ( I've seen people use washers or even a penny snugged into the gear case front notch). If yours is like this example diagram, it appears the bushing is hollow. If that's the case, you may have some wear in the front of the gear case itself and a shim will work for awhile. Lot of work though to fix a 1/16". Assuming that the whole impeller shaft is moving with the pulley the 1/16th of an inch, correct?
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post #5 of 8 Old 04-19-2016, 12:03 PM
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1/16" is probably what you'll see when it was new, nothing to worry about for that. If you have a worn bushing it's #321 in the diagram and that would be what restricts the front-back movement when the auger is engaged.

Here's what a bad one will typically look like [pulley goes to the left]:
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post #6 of 8 Old 04-20-2016, 06:49 PM Thread Starter
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Thank,s guys , the bearing at the pulley looks o k . So I may go inside the gear box . Thanks a lot .

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post #7 of 8 Old 04-20-2016, 08:06 PM
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Are you having a problem with the auger drive on the machine? Is the auger not rotating, or does it stop when it hits a snow load?

Snowblowers are not really built to high precision standards.
There has to be some play in the parts to allow lubrication to get into the nooks and crannies.

Unless the gearbox is empty of lubrication, which is should not be, I wouldn't mess with it if it's working an not grinding or clicking.

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post #8 of 8 Old 04-21-2016, 08:46 AM Thread Starter
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No , Its seems to be fine . I guess I may leave it as is . Thanks I do understand it a lot more now . Thank you .

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