3406b missing allen screws from pump??

Discussion in 'Trucks [ Eighteen Wheelers ]' started by seth Pivarnik, Nov 7, 2015.

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  1. Feb 11, 2016 #161
    seth Pivarnik

    seth Pivarnik Light Load Member

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    It's not running good every time the tanks are full but the times it does the tanks are full
     
    seth Pivarnik, Feb 11, 2016
    seth Pivarnik, Feb 11, 2016
    #161
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  3. Feb 11, 2016 #162
    swaan

    swaan Road Train Member

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    You can do the fitting and hose like you said . Or go to peterbuilt and get there proper vent that screws into the top of the tank.

    Look close at the cap , Ussally they will say on them somewhere if it's vented or non vented .
     
    swaan, Feb 11, 2016
    swaan, Feb 11, 2016
    #162
    seth Pivarnik Thanks this.
  4. Feb 11, 2016 #163
    wore out

    wore out Numbered Classic

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    SmokinCat is right those caps aren't vented.
     
    wore out, Feb 11, 2016
    wore out, Feb 11, 2016
    #163
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  5. Feb 12, 2016 #164
    Largecar359

    Largecar359 Road Train Member

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    The caps def Not vented I have the same ones. Mine is 85 as well, but I have vents on the tanks. Would make sense if tanks not getting proper flow.
     
    Largecar359, Feb 12, 2016
    Largecar359, Feb 12, 2016
    #164
    wore out Thanks this.
  7. Feb 12, 2016 #165
    Largecar359

    Largecar359 Road Train Member

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    My tanks have 3/8 breather tubes that come out top of tank and wrap around and go down around the inside of tank. If you don't have anything like that. Then smokin cat and wore out have the right idea, I would probably buy vented caps see how it goes.
     
    Largecar359, Feb 12, 2016
    Largecar359, Feb 12, 2016
    #165
  8. Feb 17, 2016 #166
    seth Pivarnik

    seth Pivarnik Light Load Member

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    The vent caps are in the mail. But couldn't get the new suction line on, local shop didn't have the right fittings so I got another place that is closed on the weekends but I'll try and get in there this coming Monday or Tuesday. Quick question though. I took the line off the other side of the water separator that goes to the lift pump and stuck if in a can of diesel to see if it would run any different which it didnt. Would that eliminate it being a line or vent issue??
     
    seth Pivarnik, Feb 17, 2016
    seth Pivarnik, Feb 17, 2016
    #166
  9. Feb 17, 2016 #167
    wore out

    wore out Numbered Classic

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    If you run the suction line in a bucket and run her down the road I would say that would eliminate a vent/suction tube issue
     
    wore out, Feb 17, 2016
    wore out, Feb 17, 2016
    #167
    seth Pivarnik Thanks this.
  10. Feb 17, 2016 #168
    seth Pivarnik

    seth Pivarnik Light Load Member

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    I didn't take it done the road just let it pull from the can and reved it up to see if it smoked like it did with full power
     
    seth Pivarnik, Feb 17, 2016
    seth Pivarnik, Feb 17, 2016
    #168
  11. Feb 20, 2016 #169
    SmokinCAT

    SmokinCAT Road Train Member

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    Any updates?
     
    SmokinCAT, Feb 20, 2016
    SmokinCAT, Feb 20, 2016
    #169
  12. Feb 20, 2016 #170
    seth Pivarnik

    seth Pivarnik Light Load Member

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    Vents are in the mail should be here beginning of the week and I'm going to get the hose made middle of the week and put those in. But other than that no changes still doing the same thing
     
    seth Pivarnik, Feb 20, 2016
    seth Pivarnik, Feb 20, 2016
    #170
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