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D2 Pony Crankshaft

D2 Pony Crankshaft

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Lance Jones
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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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Thu, Jun 1, 2023 5:22 AM
Rome K/G
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1.8120-1.8125-in.
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Thu, Jun 1, 2023 6:50 AM
Lance Jones
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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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Sat, Jun 3, 2023 12:23 PM
Rome K/G
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Reply to Lance Jones:
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
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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Sat, Jun 3, 2023 7:34 PM
Rome K/G
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Reply to Rome K/G:
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.
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.
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Sat, Jun 3, 2023 8:07 PM
Showing 1 to 4 of 4 results
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