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Farmall & IHC Tractors Discussion Forum
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656 Ring gear , can it be flipped?

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Yellott Canby

02-06-2006 12:23:55




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Hello, Was wondering if the ring gear on a 656 gas can be flipped when one side gets bad or if the gear is only good to use on one side. Had a friend over this weekend, another red tractor fellow. Decided to change the ring gear on my 656 as it would grind all the time when trying to start. Was going to replace it but heard that it could be flipped if it hadn't already. When we removed the gear it was badly worn on one side and flat and unused on the other. However when it was all reassemled, with a rebuilt starter, It would grind still and also the starter would hang up and we couldn't stop it until we unhooked the battery. Thought the new starter might be bad but it tested ok.The starter man said that the flywheel has to have a slight bevel to the gear in order to work, which it didn't. Do I need to replace it with a new one?Thanks for the help.YC

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scotc

02-11-2006 20:45:42




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 Re: 656 Ring gear , can it be flipped? in reply to Yellott Canby, 02-06-2006 12:23:55  
or if you know someone realll good with a mig welder they can build new teeth on the ring gear, like an uncles freind did with our td8g. sure beat pulling the motor, and works like new.



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K.B.-826

02-06-2006 16:10:30




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 Re: 656 Ring gear , can it be flipped? in reply to Yellott Canby, 02-06-2006 12:23:55  
Probably not. The teeth should be beveled on the side that faces the starter. Also, removing a ring gear can strech it just enough to cause it to eventually slip and spin on the flywheel if it is reused.



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RustyFarmall

02-06-2006 13:35:45




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 Re: 656 Ring gear , can it be flipped? in reply to Yellott Canby, 02-06-2006 12:23:55  
I don't know what a new ring gear would cost, but it has to be less expensive than the hassle of splitting the tractor the second time.



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JIm J

02-06-2006 20:07:24




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 Re: 656 Ring gear , can it be flipped? in reply to RustyFarmall, 02-06-2006 13:35:45  
For the 656 Gas tractors there are two different ring gears and starters. The early tractors take the same ring gear as the diesels with 134 teeth. The later gas tractors have 133 teeth. It depends on what parts book you look at on the ring gear that it calls for. The early parts book call for the 134 tooth ring gear for all tractors. The later has a serial number break for the ring gears, And the latest parts manual has the gas ring gear as 133 teeth and the diesel as 134 teeth. In my opinion the 656 parts manual is the porest manual that IH ever wrote.

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Yellott canby

02-07-2006 04:16:30




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 Re: 656 Ring gear , can it be flipped? in reply to JIm J, 02-06-2006 20:07:24  
I found the part # right on the gear, 367042R1 which is the 134 teeth. I just wasn't sure if I could reverse the original. The teeth on the unused side are not beveled. thanks, YC



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Janicholson

02-06-2006 12:49:27




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 Re: 656 Ring gear , can it be flipped? in reply to Yellott Canby, 02-06-2006 12:23:55  
I would change the drive now, if it works it will save the effort invested. I've seen many new ring gears that had no bevel, thow that model is not one I've seen. There may be a updated drive unit from the Dealer. If the starter hangs and won't stop it is not the ring gear, it is the solenoid system. It should never do that.
JimN



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RustyFarmall

02-06-2006 13:33:25




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 Re: 656 Ring gear , can it be flipped? in reply to Janicholson, 02-06-2006 12:49:27  
Yes it will, if the starter drive gets hung up in the engaged position, the solenoid will not be able to release, and the starter will continue to have power to it.



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Yellott Canby

02-06-2006 14:25:21




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 Re: 656 Ring gear , can it be flipped? in reply to RustyFarmall, 02-06-2006 13:33:25  
I wish I had just put in a new one. It wasn't the cost but the fact that I thought a reversed US made one would be preferable to a new imported one. The teeth on the unused side are definetly not beveled. I think that may be causing the bind, which causes power to stay to the starter, as you said. Will probably endup putting on a new one. Learn something new every day. Thanks, YC



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Janicholson

02-06-2006 13:49:08




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 Re: 656 Ring gear , can it be flipped? in reply to RustyFarmall, 02-06-2006 13:33:25  
From my reading of the post it was spinning, not jammed. I understand your point, and agree. I assume it is a linkage type drive not an inertia drive. JimN



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RustyFarmall

02-06-2006 18:09:39




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 Re: 656 Ring gear , can it be flipped? in reply to Janicholson, 02-06-2006 13:49:08  
And after I posted my reply, I began wondering whether I had understood it right.



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Peabody

02-06-2006 12:34:15




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 Re: 656 Ring gear , can it be flipped? in reply to Yellott Canby, 02-06-2006 12:23:55  
If it is still grinding, you are eventually going to have to replace the ring gear AND the starter bendix gear. Go ahead and replace the ring gear. It's not that expensive.



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