Engine/Transmission (1998.5 - 2002) Crankshaft main bolts.

[BillGotthelf]

Anybody know if these are one time bolts. I removed them to mic out everything and upon the attempt to torque down they just seem to stretch. I am ordering new ones from Cummins to take no chances. With the upgrades I would rather have my crankshaft in the oil pan rather than on the road under my truck.

 

[jmeehan]

I don't know about the bolts, but I think there is a stud kit available for the bottom end. Might as well beef that up while you're in there.

 

[BillGotthelf]

I could not find stud kit for bottom end but I am putting in studs for the head. Oh boy Piers cam and lifters have arrived.

 

[Thomas]

"Anybody know if these are one time bolts . . . "



From the model year 2000 factory service manual section regarding 5. 9L Cummins engine Crankshaft Main Bearings>Installation:



. . . All bearing capbolts removed during service procedures are to be cleaned and oiled before installation.



Sounds to me like they are re-used.

 

[DRAG DIESEL]

Might want to give Haisley Machine or Scheid Diesel a call for main studs.