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post #1 of 12 Old 06-05-2015, 10:08 AM Thread Starter
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New Member Need help Simplicity S4 Snowaway

Greetings All,
Trying to effect a repair on my vintage Simplicity S4 Snow-Away(not sure of the year) I bought this used a year ago, I now see why the price was so good As you can see by the pics the primary drive gear has been slotted by the secondary gear. I have a friend with a wire EDM who can burn me a replacement gear once I reverse engineer the current gear into a CAD system....my problem is how do I get the gear off the shaft?!?! I'm assuming it's a press fit?? I've tried placing the gear between top of the jaws of my vise, shaft down between the jaws, place a spacer on the shaft and hit the spacer with a 16lb sledge hammer. Doesn't even budge...I have tried freeze-off penetrating oil, heating the gear with a propane torch, putting it in the freezer over night then heating just the gear.... NOTHIN'. I'm down to using a welding torch to get the gear cherry red, then try to pop it off, or take a cutting disc and cut the gear off. I would like to retain the overall integrity of the gear for measurement purposes.... any suggestions??




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post #2 of 12 Old 06-05-2015, 11:37 AM
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Welcome to SBF mad bohemian.

I would put it on a hydralic press and try it, if it does not budge, heat only the gear slightly and try it again (do not heat it to much, otherwise it would get crushed with the force of the press).

Also make sure that it does not have a set pin or something like that that is keeping it in place.
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post #3 of 12 Old 06-05-2015, 11:44 AM
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If I have the right diagram, it looks like the axle and gear are one part, welded perhaps?

Simplicity 1004 (1690305) - Simplicity Sno-Away 4HP 20 Snowthrower Transmission Group Diagram and Parts List | PartsTree.com

Look at # 16 on the picture

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post #4 of 12 Old 06-05-2015, 02:40 PM Thread Starter
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Yeah, I found this diagram for the 23" which is the part "BA" I think it's the same part as the #16 in the previous diagram. I'm thinking for $70, it would sure save me a lot of headache to just buy the replacement...





Yup...just cross referenced the diagrams.. the part # is the same

Last edited by mad_bohemian; 06-05-2015 at 02:43 PM.
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post #5 of 12 Old 06-05-2015, 05:05 PM
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I agree, just get the part and get going on your project.
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post #6 of 12 Old 06-05-2015, 06:18 PM
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ALOHA from the paradise city.

Long LIVE THE POWERSHIFT!! MAY IT NEVER RUST IN PEACE!!
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post #7 of 12 Old 06-05-2015, 07:14 PM
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Welcome to the gang MB!


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post #8 of 12 Old 06-06-2015, 08:17 AM Thread Starter
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Thanks guys. Ordered the part yesterday. I will probably try to separate the old gear and pin at some point...just because


Quote:
Originally Posted by hsblowersfan View Post
If I have the right diagram, it looks like the axle and gear are one part, welded perhaps?
Don't see any signs of a weld, unless it is maybe silver welded... I'll tear it apart when I get bored this summer after all my projects run out..... BAHAHAHA... that's funny..... projects run out...lolol....
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post #9 of 12 Old 06-06-2015, 08:53 PM
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Quote:
Originally Posted by mad_bohemian View Post
Don't see any signs of a weld, unless it is maybe silver welded... I'll tear it apart when I get bored this summer after all my projects run out..... BAHAHAHA... that's funny..... projects run out...lolol....
If you do try to separate the gear, I'd suggest the use of a press if you have acces to one.

"I would put it on a hydralic press and try it, if it does not budge, heat only the gear slightly and try it again (do not heat it to much, otherwise it would get crushed with the force of the press)."

It is funny to see that you can run out of projects, I have too many projects and I need time to get to them.
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post #10 of 12 Old 06-07-2015, 03:43 PM Thread Starter
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Originally Posted by hsblowersfan View Post
....It is funny to see that you can run out of projects, I have too many projects and I need time to get to them.
Oh trust me, between the 3 project motorcycles/hobby (tearing them down to the frame, customizing and rebuilding) The renovation jobs to get the house ready to sell, and going through the entire brake system on my 1990 Chrysler TC by Maserati....I have enough to keep me going for a while...and that's not taking into account my wine making hobby, videography hobby or the gardening....yeah...I need a clone, that's all there is to it... :P
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