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Fuel pump ??grease

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by NoSmog73, Apr 9, 2002.

  1. NoSmog73

    NoSmog73 1/2 ton status

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    In the directions it says to use a heavy grease on the actuating arm..
    My ? is can I use just marine grease.....
     
  2. NoSmog73

    NoSmog73 1/2 ton status

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    Re: Fuel pump

    Soory I forgot the info ( 350 1973 block mechanical pump)
     
  3. FWP

    FWP CRS

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    <blockquote><font class="small">In reply to:</font><hr>

    In the directions it says to use a heavy grease on the actuating arm..

    <hr></blockquote>

    That's weird, why would they say that? The arm and shaft gets lubed buy engine oil. Put a little oil on it, stab that sucker in there and run it......
     
  4. mike reeh

    mike reeh 1/2 ton status

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    its because there is extremely insufficient oiling to that area. marine grease should work fine, or any grease for that matter. put it in there and in 50K when you have the pump out again, you'll still see the grease there.. apparently a lot of pump failures are because of lack of lubrication.. I can only imagine how many zillions of them are installed w/o the "dab" and are doing fine

    mike
     
  5. NoSmog73

    NoSmog73 1/2 ton status

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    Here is the exact wording in the instuctions

    Small block chevolet V-8 with normal crackcase pressure.DO NOT FURNISH ADEQUATE LUBRICANT TO THE FUEL PUMP.Moisture can form in the pump and cause premature failure.PACK THE FUEL PUMP CAVITY ARAOUND THE ACTUATING ARM WITH A HEAVY GREASE to prolong the fuel pump life and prevent harmdull moisture build up inside the fuel pump... I thought the arm was oiled by the motor too. I guess the grease is just a water blocker huh ????
     
  6. zakk

    zakk 1/2 ton status

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    <blockquote><font class="small">In reply to:</font><hr>

    I can only imagine how many zillions of them are installed w/o the "dab" and are doing fine

    <hr></blockquote>

    add mine to that...that makes a zillion and one/forums/images/icons/laugh.gif

    I didn't even know to add grease. Oh well, one more thing to do/forums/images/icons/crazy.gif
     
  7. FWP

    FWP CRS

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    Cool, I learned something.
     
  8. OU812

    OU812 Registered Member

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    Not only that but it helps hold the rod in place, you dont need to use the screw on the front of the block, saves a couple of minutes when changing a pump.
     

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