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D2 3j donkey

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4 years 4 months ago #217911 by caterpillarsam
D2 3j donkey was created by caterpillarsam
Hi all
I’m after the part numbers for the two 20thou undersize crankshaft bearings in my D2 3j donkey engine.
Thanks in advance

D2 3J
WW2 Huber three wheel road roller (D3400 engine)
1937 Twenty Two
Cat SCOTE engine
Allen Oxford drawbar grader
1944 D7 4T1154
D8 8R
1956 David Brown 25C
1954 DW-15 scraper 45C653

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4 years 4 months ago #217917 by ccjersey
Replied by ccjersey on topic D2 3j donkey
My parts book has
8b6 rear (Next to flywheel)
8b5 front

D2-5J's, D6-9U's, D318 and D333 power units, 12E-99E grader, 922B & 944A wheel loaders, D330C generator set, DW20 water tanker and a bunch of Jersey cows to take care of in my spare time:D

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4 years 4 months ago #217918 by caterpillarsam
Replied by caterpillarsam on topic D2 3j donkey

My parts book has
8b6 rear (Next to flywheel)
8b5 front


Yh I have that in my book as well, however it’s not a compatible part number that cat recognises if that makes sense, I need the updated part number

D2 3J
WW2 Huber three wheel road roller (D3400 engine)
1937 Twenty Two
Cat SCOTE engine
Allen Oxford drawbar grader
1944 D7 4T1154
D8 8R
1956 David Brown 25C
1954 DW-15 scraper 45C653

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4 years 4 months ago #217922 by neil
Replied by neil on topic D2 3j donkey
I have 3B7980 for flywheel bearing and 3B7979 for front of tractor bearing, and 2A3435 for the dowel (2 required). These numbers are for 3J1 through 3J4877. Then it changes to 8B6 which would be 8B0006 in Cat's system for the flywheel end and 8B0005 for the front of tractor. Dowel part # is unchanged

Cheers,
Neil

Pittsford, NY

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4 years 4 months ago #217986 by caterpillarsam
Replied by caterpillarsam on topic D2 3j donkey

I have 3B7980 for flywheel bearing and 3B7979 for front of tractor bearing, and 2A3435 for the dowel (2 required). These numbers are for 3J1 through 3J4877. Then it changes to 8B6 which would be 8B0006 in Cat's system for the flywheel end and 8B0005 for the front of tractor. Dowel part # is unchanged


Thank you all, so handy you guys all helping me out

D2 3J
WW2 Huber three wheel road roller (D3400 engine)
1937 Twenty Two
Cat SCOTE engine
Allen Oxford drawbar grader
1944 D7 4T1154
D8 8R
1956 David Brown 25C
1954 DW-15 scraper 45C653

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4 years 4 months ago #218072 by mog5858
Replied by mog5858 on topic D2 3j donkey
if you can't find them they are really quite simple to make with a lathe. as the are just 6060 AL. just add your oil clearance to whatever you got you crank ground too.

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