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D2 Pony Crankshaft

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1 year 4 months ago #248729 by Lance Jones
One of Our Chapter 18 Members has a Crank Problem on His 3J D2 ,Big End Brg is Shot , But He needs actual Standard Measurement of Crank to determine if it is Standard or already Under size. and We don't have the  revelent  Details to Check . Could  someone Please Help out Here , would be Much appreciated . Thanks  LJ

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1 year 4 months ago #248733 by Rome K/G
Replied by Rome K/G on topic D2 Pony Crankshaft
1.8120-1.8125-in.
The following user(s) said Thank You: gauntjoh, Lance Jones, Haus

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1 year 4 months ago #248796 by Lance Jones
Replied by Lance Jones on topic D2 Pony Crankshaft
Thanks for Reply Rome/KG, Seems those are the Exact Measurements for the End [Main ] Brgs. We need the Conrod [Bigend] Measurements , So If You or someone could check them Out it would Be Fantastic . and Much appreciated .LJ

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1 year 4 months ago #248798 by Rome K/G
Replied by Rome K/G on topic D2 Pony Crankshaft
Sorry about that, should be 1.7495-1.7500-in. Max permissible out-of-roundness [journal] .003-in. Max permissible wear on journal .005-in.

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1 year 4 months ago #248800 by Rome K/G
Replied by Rome K/G on topic D2 Pony Crankshaft
Here are some specs on the rod,
Bearing clearance .002-.0035-in.
Max permissible clearance .009-in.
Center-to-center distance 5.748-5.750-in.
The following user(s) said Thank You: Lance Jones

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