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Fuel Pump Install ?'s

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by Hossbaby50, Jan 1, 2002.

  1. Hossbaby50

    Hossbaby50 3/4 ton status

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    Fuel Pump Install ?\'s

    Ok, I am installing a new fuel pump tomorrow. It is an AC Delco mechanical pump for an SBC. It says to grease the arm and such. What type of grease, and how much? Also How do you make sure that you get the arm in the correct spot? Any other tips would be greatly appreciated too. Thanks

    Harley

    My Chevy isn't broken, its just out of gas.
     
  2. Pugsley

    Pugsley 1/2 ton status

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    Re: Fuel Pump Install ?\'s

    I usually use a dollop of Lubriplate, or Moly cam/lifter grease on the arm. The pump pushrod will try to slip out of place on you, and if it does, just pack the whole fuel pump cavity with moly grease to hold it in place, and aside from that, it's pretty much idiot proof, just bolt it in and go.

    ......And knowing is half the battle
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  3. lasvegas

    lasvegas 1/2 ton status

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    Re: Fuel Pump Install ?\'s

    I like to put assembly lube on the end of the pump arm and push rod ends. As far as putting the arm in right, it really only goes one way and you cannot screw it up. The rod is moved up and down by a lobe on the cam. Sometimes, the lobe stops in a place which makes the rod extend out and then it is really hard to put in the pump. If that happens, rotate the engine around a little to move that lobe and then it should all slip together really easy. And the grease on the rod should hold it in place and keep it from slipping too much.
     
  4. m j

    m j 1/2 ton status

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    Re: Fuel Pump Install ?\'s

    many SBC suffer from insufficient oiling of the pump, mine kills them yearly.
    Carter pumps come with the instructions to pack the pump with chassis grease.
    there is a bolt that can be removed and replaced with a longer one to capture the pushrod on the front face of the block, one of the early mount boss bolts I believe

    formerly 77chev
     
  5. chevyracing

    chevyracing 1/2 ton status

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    Re: Fuel Pump Install ?\'s

    ........and do not forget to replace that bolt with the right one or you will have a fountain of oil that would impress even the wealthiest Arab.

    John

    Like to go sloppin' 'round in da mud in a rapid fashion....=)

    <a target="_blank" href=http://coloradok5.com/gallery/albun31?&page=1>BLAZER PICS</a>
     
  6. HarryH3

    HarryH3 1 ton status Author

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    Re: Fuel Pump Install ?\'s

    More importantly, don't forget to REMOVE the long bolt before you start the engine or you can ruin the fuel pump lobe on the cam. [​IMG]

    <font color=black>HarryH3 - '75 K5</font color=black>
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    It's a great day to be alive...
     
  7. 95 Silverado

    95 Silverado 1/2 ton status

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    Re: Fuel Pump Install ?\'s

    on the front corner of the block, sort of around the corner from the fuel pump, there are two bolt holes, the top one should have a bolt in it, remove the bolt, that hole goes directly into the pushrod, have someone else put pressure on the rod with a screwdriver through the hole, or install a longer bolt to hold it in place while you put the fuel pump on. after your done reinstall the short bolt in the hole.

    '95 Chevy Silverado 1500
    5.7 V8-NV4500- 3.73 rears
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