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  7. D4 6U starting engine

D4 6U starting engine

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3 years 5 months ago #223604 by Ttophoven
D4 6U starting engine was created by Ttophoven
I am in need of a .030 undersize front main crankshaft bearing ( end with the timing gear)
Anything anyone is willing to part with out there, I'm open to other options if anyone has suggestions.

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3 years 5 months ago #223608 by juiceman
Replied by juiceman on topic D4 6U starting engine
Do you have the part number handy? I have a new one from CAT, but I believe it is for the rear, which I assume not the same? Parts book not here, I can look next week. JM

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3 years 5 months ago #223609 by Ttophoven
Replied by Ttophoven on topic D4 6U starting engine
I had a machine shop measure and the crankshaft is worn to badly for a .030 undersize bearing, am now in search of a serviceable crankshaft.
Thanks

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3 years 5 months ago #223610 by Ttophoven
Replied by Ttophoven on topic D4 6U starting engine
.030 undersize number for the front/ gear end is (1H2828) discontinued at Caterpillar

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3 years 5 months ago #223612 by juiceman
Replied by juiceman on topic D4 6U starting engine
Looks like mine is for the rear. Sorry.
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3 years 5 months ago #223621 by Bmr
Replied by Bmr on topic D4 6U starting engine
I have a good used standard crankshaft here

Calls are best
507 402 2720

Thanks Jon

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3 years 5 months ago #223630 by Ttophoven
Replied by Ttophoven on topic D4 6U starting engine
Jon, what's a good time to call?
Thanks Tim

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3 years 5 months ago #223667 by Ttophoven
Replied by Ttophoven on topic D4 6U starting engine
Would anyone have the standard crankshaft specs for the crankshaft in the photo? It's out a D4-6U
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3 years 5 months ago #223705 by trainzkid88
Replied by trainzkid88 on topic D4 6U starting engine

Would anyone have the standard crankshaft specs for the crankshaft in the photo? It's out a D4-6U


well the bearing bores are listed as 1.8200 inches so the crank would be a slight clearance on that

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3 years 5 months ago #223706 by trainzkid88
Replied by trainzkid88 on topic D4 6U starting engine
you may be able to speedi-sleave the crank back to a usable size it is also possible to get it built up and reground any good engine reco shop should be able to do that

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  3. Antique Caterpillar Machinery Owners Club
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  7. D4 6U starting engine
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