D4 pony babbit main bearing removal?

Deebo
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4 years 5 months ago #215087 by Deebo

D4 pony babbit main bearing removal? was created by Deebo

This looks like a babbitt main bearing on my pony engine? Any tips on removal? I’m assuming it won’t just pull out, should I melt it or cut it? Or is just a corroded alloy one that will pull no problem? Thanks!

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drujinin
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4 years 5 months ago #215089 by drujinin

Replied by drujinin on topic D4 pony babbit main bearing removal?

Square edges in outside photo makes me think it is Aluminum

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gemdozer
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4 years 5 months ago #215092 by gemdozer

Replied by gemdozer on topic d4

Did you removed the dowel

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bernie
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4 years 5 months ago #215095 by bernie

Replied by bernie on topic D4 pony babbit main bearing removal?

"gemdozer" wrote:
Did you removed the dowel

See if these help-wrt Hectors question above. Do you have a parts book? if not, friendly suggestion to get one for your machine. If I recall correctly, your machine is above S/N 2xxx.

Have fun-
Bernie

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Fat Dan
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4 years 5 months ago #215096 by Fat Dan

Replied by Fat Dan on topic Dowel

"gemdozer" wrote:
Did you removed the dowel

The pony on my 955C "It's brand new" he said, "my nephew and I rebuilt it", he continued but when I got it home it had all new parts but it did need some assembly. In the process I noticed the new dowel had not been seated properly; as I moved the pony block where I had better access the old rusted dowel pin fell out. With that I pulled the pony back apart and rechecked, retorqued and prelubed everything.
Know that those dowels need seated firmly not aggressively just firmly..
sorry no pics

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955E 12A08263; 955C 12A04040; 955C 12A03563.
No.12 Diesel Motor Grader 8T14777.
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neil
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4 years 5 months ago #215098 by neil

Replied by neil on topic D4 pony babbit main bearing removal?

Those bearings are aluminum I believe. Replaced mine with oilite due to needing a 030 undersize

Cheers,
Neil

Pittsford, NY

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Deebo
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4 years 5 months ago #215101 by Deebo

Replied by Deebo on topic D4 pony babbit main bearing removal?

"drujinin" wrote:
Square edges in outside photo makes me think it is Aluminum

Thanks guys, excellent that’s a relief, it was the guy I took the crankshaft to who’d said it looked like Babbitt, I wasn’t sure. I shall take the dowel out and try a bearing race puller to see if it moves. Fingers crossed!
I had to get a reconditioned crankshaft from Florin as the spun bearing gouged the crankshaft journal and it had already been ground undersize..
Fun and games!

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D4 pony babbit main bearing removal?

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