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Recent content by MarkAlert

  1. MarkAlert

    Detroit Diesel 6v92 crank shaft failures

    I can't find out the rated HP load at the nose end of the crank. This was designed by a company called Schramm. Because this unit is 20 years old its hard to find info. We are rebuilding this next week again and we really would like to get this right. The flywheel end of the motor runs an...
  2. MarkAlert

    Detroit Diesel 6v92 crank shaft failures

    Does anyone know how much H.P the crank nose can handle ? Its a 6VF198920 8067-3B21 type swvs. Thanks
  3. MarkAlert

    Detroit Diesel 6v92 crank shaft failures

    There was no damper installed on this crankshaft. Mark
  4. MarkAlert

    Detroit Diesel 6v92 crank shaft failures

    What type of coupling do you recommend? Mark Alert
  5. MarkAlert

    Detroit Diesel 6v92 crank shaft failures

    This is the orignal engine, The pump volums have not changed - the 1st pump is 20 gpm and the 2nd is 35 gpm. Attached is the motor specs. I think something needs to be done with with coupling. The coupling fails first, the coupling seems large and heavy for this. The engine mounts seem fine...
  6. MarkAlert

    Detroit Diesel 6v92 crank shaft failures

    Not sure how much power it takes to drive the pumps but the pumps are vickers 200 psi and a Vickers 4400 psi pump . Te pump shaft is 1 1/4 inch shaft so I would assume its ok. The crank shaft where the harmonic balancer is fastend to is a 2 inch shaft. Yes I see some fretting also - The...
  7. MarkAlert

    Detroit Diesel 6v92 crank shaft failures

    more pics Thankshttp://files.engineering.com/getfile.aspx?folder=aa2059ff-e398-44ad-b7e4-39da0f4e4e6a&file=Detroit_Diesel_6V92_Crank_Shaft_Failures.ppt
  8. MarkAlert

    Detroit Diesel 6v92 crank shaft failures

    I have a Detroit Diesel 6v92 crank shaft that keeps failing (break). This is on a well drilling machine. The crank shaft runs 2 hydraulic pumps. The shaft breaks where the harmonic balancer fit to the shaft.We have an omega 60 coupling to couple the pumps. We had 3 coupling failures and 2 crank...

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