Construction and other equipment - 715 backhoe tranny trouble

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715 backhoe tranny trouble

Printed From: Unofficial Allis
Category: Allis Chalmers
Forum Name: Construction and other equipment
Forum Description: everything else with orange (or yellow) paint
URL: https://www.allischalmers.com/forum/forum_posts.asp?TID=106895
Printed Date: 04 May 2024 at 10:22pm
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Topic: 715 backhoe tranny trouble

Posted By: Dgrader
Subject: 715 backhoe tranny trouble
Date Posted: 29 May 2015 at 10:07pm

Our 715 started making a grinding sound in 3rd gear last fall. As we kept using it, it got to where it was doing it in 1st and 2nd also. 4th gear was fine, didn't make any noise at all. Today I decided to take out the tranny and see what was going on. 1st,2nd and 3rd gear were all in good shape but 4th was a mess. The teeth were ground off from the front of the case, leaving about a half inch left back by 3rd gear. I'm thinkin when in the first 3 gears there's enough slop in 4th to make the grinding sound. But in 4th there's enough teeth left to make it run smooth. I hope this makes sense just trying to figure out what's goin on. Any thoughts would be appreciated. Thanks.

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Ya cain't fix stupid.

Replies:

Posted By: Coke-in-MN
Date Posted: 10 Jun 2015 at 10:19pm

Sounds like box needs to be gone through and check forks are putting gears in proper position

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Faith isn't a jump in the dark. It is a walk in the light. Faith is not guessing; it is knowing something.
"Challenges are what make life interesting; overcoming them is what makes life meaningful."

Posted By: Dgrader
Date Posted: 11 Jun 2015 at 5:18am

Yeah Coke, I dropped the tranny and found bearings went out on bottom shaft. Found a used tranny and put it in and everythings workin fine. Would you know where to find the parts to rebuild our old one? Torque converter was made by borg warner and I'm assuming tranny was too.

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Ya cain't fix stupid.

Posted By: Coke-in-MN
Date Posted: 11 Jun 2015 at 11:32am

can check if any part numbers might match with truck units used by ford .

might be couple individuals on here that can source parts also either in MI or Canada

also MINNPAR might have lead - bearing should be easy to find .

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Faith isn't a jump in the dark. It is a walk in the light. Faith is not guessing; it is knowing something.
"Challenges are what make life interesting; overcoming them is what makes life meaningful."

Posted By: Dgrader
Date Posted: 11 Jun 2015 at 4:20pm

Thanks Coke. I'll check it out. Preciate it.

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Ya cain't fix stupid.

Posted By: ivan
Date Posted: 12 Jun 2015 at 7:42am

we can help 989-379-2721

Posted By: Coke-in-MN
Date Posted: 12 Jun 2015 at 10:49am

See - Ivan seems to be able to step in on many of these things

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Faith isn't a jump in the dark. It is a walk in the light. Faith is not guessing; it is knowing something.
"Challenges are what make life interesting; overcoming them is what makes life meaningful."

Posted By: Dgrader
Date Posted: 12 Jun 2015 at 5:47pm

Ok ivan. Not sure what we're gonna do yet. If we rebuild we'll give ya a call. Got othet stuff to fix first.

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Ya cain't fix stupid.

Posted By: Dgrader
Date Posted: 13 Jun 2015 at 4:26am

Ivan, you wouldn't have a muffler for the ol girl would ya. It was shot and put a straight pipe on. Gotta quiet it down.

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Ya cain't fix stupid.