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Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by zakk, Sep 29, 2001.

  1. zakk

    zakk 1/2 ton status

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    got the fuel pump off, now the fuel push rod is stuck! we have tried bumpkin the engine, turning it manually. it will not move! is this normal!?!? is there a trick i do not know of!?!?!!


    -Zakk
    '77 K5 SB 400 TH350 NP203 p/t 6" Lift D60 14BFF 4.10's 36"Wrangler II's
     
  2. Nrose07

    Nrose07 1/2 ton status

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    Not sure what your doing but if this motor has some miles on it than yes. Yes because that rod has been wearing away at one point and accumilating varnish at another set of points. Thus creating high and low spots. You are probably jammed on the high spot, use some wd-40, carb cleaner, etc, to help dissolve the varnish. Or you could be screwed, but I'd put money on the varnish.

    Displacement, cubes, and did you say you drive a riceburner???
     
  3. denver75k5

    denver75k5 1/2 ton status

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    If all else fails, install a electric fuel pump.


    " Wider IS Better!!!"<a target="_blank" href=http://www.community.webshots.com/user/wheelininco>www.community.webshots.com/user/wheelininco</a>
     
  4. zakk

    zakk 1/2 ton status

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    with the rod stuck, would it hurt the motor to just block it off &amp; install a electric pump? we cannot get the thing to move no matter what....is there any way to get the rod off its stuck point??

    -Zakk
    '77 K5 SB 400 TH350 NP203 p/t 6" Lift D60 14BFF 4.10's 36"Wrangler II's
     
  5. mike reeh

    mike reeh 1/2 ton status

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    wierd. you have both the pump and the little plate off? did the engine run before you took the fuel pump off? theres a little bolt hole on the front i think, of the engine that some people put a long bolt in to hold the pushrod in the up position while they install a new pump... might check it out..

    so let me get this straight, there is NO play in the rod whatsoever? ha thats a new one.. tap it with a soft hammer or wood block and see what happens

    mike
     
  6. gokartergo

    gokartergo 3/4 ton status Staff Member Moderator

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    Not sure what year it is. But loosen the bolts on the smog pump.. Some times when you tighten them they go all the way threw and will hit the rod .Also if you take it all the way out you can spray brake cleaner in it to remove varnish and grim..Dan

    If it ain't broke.......Don't fix it....
    <a target="_blank" href=http://coloradok5.com/gallery/Gokartergo>KLICK</a>
     
  7. zakk

    zakk 1/2 ton status

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    THANKS TO ALL!! the wd-40 helped get it loose with the help of a "love tap" from a mallet! we got it on...now lets see if it stops dying under load....next item: plug wires!
    again thaxs to all how help with ideas and suggestions!! =o)

    -Zakk
    '77 K5 SB 400 TH350 NP203 p/t 6" Lift D60 14BFF 4.10's 36"Wrangler II's
     

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