st824 gearbox question - Snowblower Forum : Snow Blower Forums
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post #1 of 27 Old 03-09-2015, 02:58 PM Thread Starter
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st824 gearbox question

Hello,

I am currently replacing the bronze gear, the worm shaft looks good overall, do I really have to replace the worm shaft as well?
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post #2 of 27 Old 03-09-2015, 03:35 PM
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Some will say to replace both. I'd use the worm shaft ONLY IF it looks Good. If it's bad, You'll be replacing both again later. GL.
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post #3 of 27 Old 03-09-2015, 03:40 PM
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Is there anything wrong with the shaft that makes you ask ??

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post #4 of 27 Old 03-10-2015, 12:08 AM
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When I worked for Bosch if we replaced a gear, we always replaced any other gear that mated with it. Was company policy and to be honest I still follow it on my own stuff.

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post #5 of 27 Old 03-10-2015, 10:53 AM Thread Starter
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Quote:
Originally Posted by Kiss4aFrog View Post
Is there anything wrong with the shaft that makes you ask ??
I have never replaced a worm shaft or bronze gear before, so when people say "does the worm shaft look good", I am not 100% sure what good entails.

I do not see any dents or missing pieces on the threading. Towards the ends the threading does look different. The middle threading is rounded but the threading towards either end is sort of concave. But that seems normal when I looked at new worm shafts on ebay.

When I look at the gear and the shaft it seems like the teeth only engage in the middle of the shaft, which looks fine.

I am leaning in this direction because removing the shaft from the impeller does not sound appealing. But if you are all telling me to just do it or I will regret it later then I will pay to get the shaft removed and buy a new one.
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post #6 of 27 Old 03-10-2015, 11:19 AM
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Looking good would be it's straight when measured against something you know to be straight or level and the surface is uniform and smooth with no apparent gouges, pitting or worn spots.

Jenkinsm2, Post up some pictures and let us "see" it.

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post #7 of 27 Old 03-10-2015, 11:24 AM Thread Starter
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Ok,

I will get some pictures up by the weekend.
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post #8 of 27 Old 03-10-2015, 11:39 AM Thread Starter
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Actually,

I will have pictures up within an hour.
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post #9 of 27 Old 03-10-2015, 11:48 AM
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I have a brand new shaft from a ST 824 that I never used. I can cut you a good deal if you are interested. However, I will be in FL for the next 2 weeks, so you will have to wait for it. Just let me know. BTW - shaft only, and I'll throw in my old brass gear that is all town up if you'd like ! I used the old shaft with the new gear, but I didn't get a lot od data on it because I sold it shortly thereafter.
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post #10 of 27 Old 03-10-2015, 12:03 PM
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I will have pictures up within an hour.

You da man !!

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