Drive plate runout? - Snowblower Forum : Snow Blower Forums
 
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post #1 of 9 Old 03-27-2015, 09:45 PM Thread Starter
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Drive plate runout?

So I've got a question for the experts here.

I'm working on this basket-case 32" 924-series I bought, and when I spun the drive plate that mates with the rubber disc to drive the wheels, I noticed the drive plate seemed to wobble a bit. So I put a dial indicator on it and it does in fact have about 0.030" axial runout. By "axial", I mean in the fore-aft axis of the machine - in other words nearer and farther from the rubber disc.

Well no problem I said to myself, I've got another one. So I gave it a spin and it wobbled too! Worse than the other one - it's got about 0.040" runout.

Is that something they all do or did I just luck out and get two bad ones?

~1994 Ariens 924084 (ST1032) "papa bear": restored, re-engined, real nice!
1991 Ariens 924050 (ST824) "mama bear"
Toro PowerCurve 1800 "baby bear"

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post #2 of 9 Old 03-27-2015, 10:00 PM
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Isn't it attached to a bearing that might instigate the wobbling, Just a thought.

Snow Removal Apparatus I own:
Ariens ST1530DLE, and good ole arm powered scrapper.
The 15 HP is a new Ducar engine sold
by Princess Auto in Canada.
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post #3 of 9 Old 03-27-2015, 10:01 PM Thread Starter
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It is, two bearings in fact. But I just replaced both of them.

Genuine Ariens bearings made in China.

~1994 Ariens 924084 (ST1032) "papa bear": restored, re-engined, real nice!
1991 Ariens 924050 (ST824) "mama bear"
Toro PowerCurve 1800 "baby bear"

Be alert! America needs more lerts.
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post #4 of 9 Old 03-27-2015, 10:08 PM
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It is, two bearings in fact. But I just replaced both of them.

Genuine Ariens bearings made in China.

Another thought then would be the shaft if it doesn't wobble. Again just thinking without much research.Good Luck

Snow Removal Apparatus I own:
Ariens ST1530DLE, and good ole arm powered scrapper.
The 15 HP is a new Ducar engine sold
by Princess Auto in Canada.
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post #5 of 9 Old 03-27-2015, 10:10 PM Thread Starter
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Yeah I'll admit it's a little hard to tell if it's the actual plate or the shaft that's off. But each plate is on its own shaft, so it's two of "something" that have a problem.

~1994 Ariens 924084 (ST1032) "papa bear": restored, re-engined, real nice!
1991 Ariens 924050 (ST824) "mama bear"
Toro PowerCurve 1800 "baby bear"

Be alert! America needs more lerts.
ELaw is online now  
post #6 of 9 Old 03-27-2015, 10:24 PM
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Originally Posted by ELaw View Post
Yeah I'll admit it's a little hard to tell if it's the actual plate or the shaft that's off. But each plate is on its own shaft, so it's two of "something" that have a problem.
I would concentrate on one aspect at a time, either shaft or plate.

Snow Removal Apparatus I own:
Ariens ST1530DLE, and good ole arm powered scrapper.
The 15 HP is a new Ducar engine sold
by Princess Auto in Canada.
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post #7 of 9 Old 04-09-2015, 03:22 PM Thread Starter
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Hey just to "close the loop" on this in case anyone's interested... it turns out that I did in fact have two bent drive plates.

I bought another on ebay, screwed it onto the shaft, and it spins with pretty much no runout!

~1994 Ariens 924084 (ST1032) "papa bear": restored, re-engined, real nice!
1991 Ariens 924050 (ST824) "mama bear"
Toro PowerCurve 1800 "baby bear"

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post #8 of 9 Old 04-09-2015, 05:39 PM
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I was just about to comment. Just serviced our 67 10m and there was no noticeable wobble while turning the wheels.

So that plate screws on the shaft?
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post #9 of 9 Old 04-10-2015, 09:44 AM Thread Starter
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Yep, and it's a reverse thread! Which the service manual fails to mention.

It's also super-hard to get off when the pulley nut is tight... if you loosen that nut the plate can be broken loose with (a lot of) hand pressure.

~1994 Ariens 924084 (ST1032) "papa bear": restored, re-engined, real nice!
1991 Ariens 924050 (ST824) "mama bear"
Toro PowerCurve 1800 "baby bear"

Be alert! America needs more lerts.
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