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85 cucv m1008 help ?

Discussion in '1982-Present GM Diesel' started by 4x4k20, Jan 25, 2003.

  1. 4x4k20

    4x4k20 1/2 ton status

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    i have got a 85 m1008 i had to replace the injector pump it was leaking. i had a extra pump and put it on but now it seems sluggish/ i think it has some thing to do with the timing it runs fine but when you go to take off it kinda boggs but then hauls ass i have tryed moving the pump from side to side but it stays the same. so how do you correctly set the timing on a 6.2 diesel?
     
  2. DieselDan

    DieselDan 1/2 ton status

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    The device we use is called a Tach n' Time. Kinda pricey tool if you're only doing one truck. /forums/images/graemlins/wink.gif
     
  3. Tybee

    Tybee 1/2 ton status

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    </font><blockquote><font class="small">In reply to:</font><hr />
    The device we use is called a Tach n' Time. Kinda pricey tool if you're only doing one truck.

    [/ QUOTE ]
    How does that work?
     
  4. DieselDan

    DieselDan 1/2 ton status

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    E-bay has one for sale.

    The Tacn N' Time has a magnetic probe that senses rotation of the harmonic balancer (RPM) and a clip on sensor for the No #1 injection line that picks up the advance (pulse) timing. An "offset" is programmed into the Timer, depending on the model, and the actual reading (engine running) is a digital read out. Actual adjustment requires movement (rotation) of the injection pump /forums/images/graemlins/wink.gif
     

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