Priming Diesel Engine TOOLS

Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by truckinfast, May 21, 2018.

  1. truckinfast

    truckinfast Light Load Member

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    What tools do you use to prime diesel truck engines? Tell me about the one you know, im here to learn.
     
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  3. x1Heavy

    x1Heavy Road Train Member

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    There are certain engines of the modern type which includes a small manually operated pump near the fuel filters. It is used when fresh fuel is reintroduced into the tanks. and meant to fill the filters prior to cranking. after running out of fuel. It usually takes about 20 minutes if you hustle quickly to get your engine back up and running.
     
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  4. Goodysnap

    Goodysnap Road Train Member

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    Hand priming pumps have been used on on-highway diesel engines for a while. Some perform way better than others, especially with a bone dry run completely out of fuel situation. Add commonrail fuel systems to the mix and air pockets bring on a whole new meaning.

    This is one area where Cummins has it on lockdown. Their low side electric lift pumps are top notch and the system is self bleeding. No muss, no fuss. Why nobody else does this is beyond me.
     
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  5. x1Heavy

    x1Heavy Road Train Member

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    All I can say it's awesome. To a old man like me my grandma would have wheels and be a wagon with all this wonderful wheels. So shiny.
     
  6. GrapeApe

    GrapeApe Road Train Member

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    Before the Paccar MX, I just used a garden sprayer with a compucheck fitting. the only engine I used it on for basic filter changes was theDD 13/15 engines, they took a lot of pumps to prime. Other than that, it was mainly for when I R&R'd injectors or fuel lines, to get a fast start (like after an in-frame).

    Once the MX engines came out and were/are a pain to prime without getting engine faults, I got a Mityvac MV7430.
     
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