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ring gear on Allis B


 
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Roger H MI
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Joined: 29 Sep 2007
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Location: Central Michigan

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PostPosted: Wed Mar 27, 2013 9:47 am    Post subject: ring gear on Allis B Reply to specific post Reply with quote

just put a new ring gear on my Allis B and it slips on the fly wheel. could I spot weld it a couple of places through the starter hole? Any Ideas for a quick fix or should I assume the ring gear is bad and replace.
 
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old
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Joined: 12 Mar 2000
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Location: Lake of the Ozarks area of MO

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PostPosted: Wed Mar 27, 2013 11:07 am    Post subject: Re: ring gear on Allis B Reply to specific post Reply with quote

Sounds like you got a bad or wrong ring gear or installed it wrong. Yes you might be able to weld it like your saying but hard to say how long that might last
 
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Dick L
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Location: Edon Ohio

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PostPosted: Wed Mar 27, 2013 3:09 pm    Post subject: Re: ring gear on Allis B Reply to specific post Reply with quote

You need to return it and get one that is correct. You have to have the correct diameter and tooth count to work with your starter drive gear.
 
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Roger H MI
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PostPosted: Thu Mar 28, 2013 6:15 am    Post subject: Re: ring gear on Allis B Reply to specific post Reply with quote

The one I bought was suppose to be the correct one. This ring gear went on snug. But I did not have to heat. the old ring gear to remove and did not have to heat this one to put on. It was put into a press and equal pressure on surface of ring gear. I have thought of pulling it back off and use a small puncture wound punch on the fly wheel, or weld as I have stated earlier If I weld would a 7018 rod be best or a 6010 rod. And what are your thoughts on heat. I would hate to end up with a warped fly wheel and breaking the crank shaft.
 
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PostPosted: Thu Mar 28, 2013 8:09 am    Post subject: Re: ring gear on Allis B Reply to specific post Reply with quote

Not having to heat it to me says it was the wrong one even if they said it was right. My have been miss market as to what it fit
 
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Dick L
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PostPosted: Thu Mar 28, 2013 8:13 am    Post subject: Re: ring gear on Allis B Reply to specific post Reply with quote

Do a tooth count and lay the old one over the new and make sure they are the same. a coupla small spots of any welding rod will cause it to stay in place. (Something is out of spec.) If it is not the ring gear then it would be the flywheel. I would be measuring both with calipers to see what was going on.
 
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Kip-Utah
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PostPosted: Thu Mar 28, 2013 8:16 am    Post subject: Re: ring gear on Allis B Reply to specific post Reply with quote

I"d use a small chisel or good punch and stake it through the starter hole in a half dozen places.Don"t think that I would try welding. Kip
 
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Roger H MI
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PostPosted: Thu Mar 28, 2013 9:12 am    Post subject: Re: ring gear on Allis B Reply to specific post Reply with quote

Well I will let you know if the weld holds. I used a 7018 rod and put two 1 inch welds opposite of each other on fly wheel. I did take a tooth count and a side by side measurement before installation. It works for now but I will let you know after 1000 starts. But I kind of believe it might be the flywheel. I have replaced a-lot of ring gears but only on Minneapolis Moline and they always took heat to remove and put on.
 
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Dick L
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PostPosted: Thu Mar 28, 2013 12:38 pm    Post subject: Re: ring gear on Allis B Reply to specific post Reply with quote

I wasn't thinking an inch of weld. If they are not exactly opposite and the same amount it could cause it to vibrate. Flywheels are balanced at the factory when manufactured.
 
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Tramway Guy
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PostPosted: Fri Mar 29, 2013 4:15 am    Post subject: Re: ring gear on Allis B Reply to specific post Reply with quote

I would try green loctite first. If the fit is as close as you imply, it will hold just fine...
 
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Roger H MI
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PostPosted: Fri Mar 29, 2013 6:12 am    Post subject: Re: ring gear on Allis B Reply to specific post Reply with quote

Tramway; you are probably correct. I often wondered if the problem started with the installation of the 12v battery. And if at installation of ring gear if I was to let the flywheel sit out and get a little rust on it or to small puncture wound punch the surface. It does work now with the weld but I will always wonder when it will fail.
 
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CTucker
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PostPosted: Fri Mar 29, 2013 1:21 pm    Post subject: Re: ring gear on Allis B Reply to specific post Reply with quote

Weld probably won"t hurt a thing till the out of balance condition tears up the rear main and the seal lets go Sad
 
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