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04-12-2019, 04:36 PM | #1 |
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Location: Westlake, ohio
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Banjo saga continues
So I completely disassembled the carrier and i removed all the bushings and races . The only thing i couldn't do was to remove the pinion gear from the drive shaft.
At first i though the carrier bearings were tight. But once I took the axles off I could turn the inner part of the bearing by hand. It's a little stiff and still had to hammer and chisel it off because there was a slight lip on the end of the carrier. Looks like I will have to have the carrier knurled. |
04-12-2019, 05:28 PM | #2 |
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Re: Banjo saga continues
It also looks like the thrust surface is worn down.
You might want to see if you can compare this one to another. Not to add injury here, but I have been informed that the axle bells can also be damaged by not having clearances correct, maybe someone will chime in with suggestion on checking. Whoever saved the time and money on the gaskets probably damaged some (expensive) good parts. John
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04-12-2019, 05:47 PM | #3 |
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Re: Banjo saga continues
I agree, that thrust looks worn. Probably with the worn thrust they left the gaskets out
to try and get the preload. Bob |
04-12-2019, 06:10 PM | #4 |
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Re: Banjo saga continues
I was planning on adding a couple shims to each side under the bearing.
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04-12-2019, 07:59 PM | #5 | |
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Re: Banjo saga continues
Quote:
THEN machine the shoulder again to present a flat surface. THEN add hardened shims to bring the dimension back to where it should be. Could be better than new when you're done? I have a loose carrier waiting for disassembly which I could start on and give you my shoulder reading. I have not inspected this bearing seat - yet. Joe K
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04-12-2019, 09:34 PM | #6 |
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Re: Banjo saga continues
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It doesn't matter how much is machined off the stop, if you are following the procedure you can keep adding shims under the carrier bearings until you have compensated for the material removed and you achieve the correct pre-load on the bearings. Tom Endy |
04-13-2019, 06:24 AM | #7 |
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Re: Banjo saga continues
Hi Tom
Yes I have slight wear from the spider gears and I will keep share the article when I take them to a machine shop. |
04-13-2019, 08:05 AM | #8 |
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Re: Banjo saga continues
I did my rear last year and on the spider gears. I could find NO specs or standards about the fit on to the yoke. In another forum, I asked everyone and anyone what the sizes should be, nada! We checked Tom Endy's stuff, Nothing! So I went with them as they were. The bores in the gears was .753 and the yoke was .747, or .006 clearance. Pretty sloppy! But it's been working well. As I said, we could find nothing on it. There's all kinds specs and so forth on every other aspect of a differential, but nothing about this, it must not be a critical fit.
About the bearing fits, I'm told that the new Timken bearings are manufactured with a .0005 smaller bore. Whether or not the new numbers signal the change or not, I can't say. The new number is Timken 28156. Good luck with it! Terry |
04-13-2019, 08:10 AM | #9 |
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Re: Banjo saga continues
My reason for machining the bearing stop is to provide "full bearing" for the bearing inner race.
A "knife edge" (or semblance thereof) is quick to wear down - shimmed or not. Joe K
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04-13-2019, 10:07 AM | #10 |
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Re: Banjo saga continues
I think Ford had replacement in mind for damaged differential cases and other rear axle parts. The parts were inexpensive at the time so repairs would not have even been considered at the time. Good used parts are still around now days but not as easy to find.
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