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Recent content by uncle_grumpy

  1. U

    471 Engine Number Problem

    "Hi, When I ring Detroit fo "Hi, When I ring Detroit for parts they always ask for the model & serial# as you would expect. But the have no idea when I give them mine because it doesn't match the numbers they think should on it. I don't know how old it, but it is badged as a GM and not...
  2. U

    471 Blowing Oil

    "Hi, I need some help to di "Hi, I need some help to diagnose a problem with an old GM471 I recently inherited. It blows a lot of oil and fumes from the main pipe that comes from the governor. It also has a oil leak from the front left corner of where the head and block meet, which...
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