Final Drive Removal

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pete641
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Final Drive Removal

Postby pete641 » Sat Sep 19, 2015 4:47 pm

Working on putting new brakes on my 154 and fixing a lot of leaks at the same time. My problem is that I can't get the final drive to come off. My guess is it's never been off since new. Any ideas for removal. Been beating on this thing all day. Figured I'd sit for a while and have a :beer: to cool off.

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Re: Final Drive Removal

Postby seahaul » Sun Sep 20, 2015 8:20 am

There are a couple of locator pins that usually have some rust on them that causes the final drive to be hard to separate from the differential case. Try squirting some solvent (Kroil, PB, etc) around the perimeter and let it soak in. Then you may have to drive a small wedge between the two halves to get it started. Be very careful driving a wedge however because these are cast iron parts and will chip or break easily. (By the way, the locator pins do not have to be removed. They are pressed into the holes to help align the bolt holes.)

Charlie

pete641
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Re: Final Drive Removal

Postby pete641 » Sun Sep 20, 2015 12:42 pm

Thanks, the left side came off with no problem. I left the right side to soak overnight, and today i'll soak it more before attempting it again. The brakes were shot on the left, luckily the drums are still good. I think the right was worse. :?

pete641
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Re: Final Drive Removal

Postby pete641 » Sun Sep 20, 2015 7:34 pm

OK, bigger issue with the removal of the final drive. Found out why it won't come off. Apparently, there was a broken bolt that I didn't see, thought the hole was just full of gunk. The problem is that I can't get at it to drill it out.
Any thoughts on removing this one? :help:
Attachments
Final Drive.JPG

Eugene
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Re: Final Drive Removal

Postby Eugene » Sun Sep 20, 2015 8:33 pm

Perhaps a small grinder to remove/grid off the offending part of the bolt.
I have an excuse. CRS.

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gitractorman
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Re: Final Drive Removal

Postby gitractorman » Mon Sep 21, 2015 3:25 pm

Where is that bolt? Is it possible to use an angle grinder to grind down some of the casting, leaving more of the bolt exposed, then weld a nut to the bolt?
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Re: Final Drive Removal

Postby Bob McCarty » Mon Sep 21, 2015 3:51 pm

gitractorman wrote:Where is that bolt? Is it possible to use an angle grinder to grind down some of the casting, leaving more of the bolt exposed, then weld a nut to the bolt?


Can you post another picture that shows the location better?

Bob
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we need to think differently."
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Re: Final Drive Removal

Postby Jim Becker » Mon Sep 21, 2015 4:15 pm

If the whole bolt head is gone, you should be able to remove the final with the bolt in place. There may be a lot of rust in the bore of the bolt hole and on the stem of the bolt. A long soak in penetrating oil may help.

pete641
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Re: Final Drive Removal

Postby pete641 » Tue Sep 22, 2015 7:12 pm

Been trying to grind out the bolt, still won't budge. This is the best image I can get to upload. The system keeps telling me the files are too large.
The hole on the right is the one I have been grinding out. Can only fit a Dremel in there. The bolt seems like it was welded in place. I can barely get a scraper to fit between the final and the spacer. I'm thinking I'll flip it on it's side and let it soak for a few days.
Attachments
IMAG0242 (1).JPG

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Re: Final Drive Removal

Postby tmays » Tue Sep 22, 2015 7:22 pm

Agree with Jim. Just be sure no other bolts are still in place
Thomas

pete641
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Re: Final Drive Removal

Postby pete641 » Mon Nov 02, 2015 7:20 pm

I got all the broken bolts out, cleaned up all the threads. Cleaned the final drives, fixed all the leaks (I hope :-| ), and repainted the whole assembly, looks great. One problem I've run into is with the new brakes. Once I install the final drives onto the differential, the brakes seize up. Are there different size brake bands? I can turn the final drives with the brake bands on, when they are off the diff. Once I connect them, the brakes tighten up so much that the finals are frozen in place. Even the engine wouldn't turn them, I did have the whole thing back together at one point. From what I can tell there is only one way these will go on. Any thoughts? Am I doing something wrong? :?


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