Two Birds One Stone, and the Heat

Discussion in '1976-1983 Pickup Discussion' started by 83pickup, Jul 25, 2023.

  1. 83pickup

    83pickup Enthusiast

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    yeah, i can't find any sizes online for what screws go on the choke shaft there, and the nice clerk at the ACE Hardware couldn't find a right size, closest was an M3 but that was too loose and i would prefer no screws fall into my intake manifold. Going to tap it out for an M4 x 0.7 since that will be the best bet. Only problem now is I don't have a bench vise...
     
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  2. 83pickup

    83pickup Enthusiast

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    found a teeny tiny vise in my toolbox, jury rigged it to the kitchen table and successfully tapped the choke bar for M4s, not I have to tap out the choke plate's holes slightly larger to accommodate them.
     
  3. 83pickup

    83pickup Enthusiast

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    alrighty i got a rebuild kit (just going to replace the gaskets for the bowl vapor solenoid and the one for the air horn assembly, unless there are some parts i should also do, please let me know) but now i found this unusual bump on where the gasket mates the carburetor to this plastic plate on the intake, is this normal?? its on the right hand side of the larger circular bore...
    20231115_130517.jpg
    also, the original gasket (bottom one in the below pic) has a piece fall out when i was taking it out, the new one on top doesn't have a provision for this unusual bump.
    20231115_130426.jpg

    should i take off the plastic mating piece and make it smooth again somehow?? someone oughta know what this is cause i sure don't...
     
  4. 83pickup

    83pickup Enthusiast

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    Upon closer inspection, I think the bump shouldn't interfere much hopefully.
    Anywho, finally around to 3rd-to-home on the carburetor adjustment, just need to figure out how in the world the throttle/choke/secondary barrel linkages are all set up (EDIT: Fast Idle Cam Linkages apparently, couldn't find it in the FSM of how exactly it goes together aside from an exploded view and some pictures online)

    I will upload some pictures of my work done after this post!
     
  5. 83pickup

    83pickup Enthusiast

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    Great news, she runs like a top!!! :clapping: took it on a few test drives in the past couple days, 100ish miles total, not an issue at all. Also, I tried out the second barrel of the carburetor (aka true foot to the floor) and it damn well gives it a GREAT boost on acceleration. Only used it in 5th gear on the freeways and it does have a difference now!

    although something to note, the fuel level on the carburetor is still above the middle point... but it runs, idles (including the step down procedures on cold starts), and drives fine. should be nothing to worry about :)

    20231121_160133.jpg
     
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  6. Erwin Merida

    Erwin Merida Addict

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    Hell yeah!! Keep up the good work!! From the looks of it, the level of gas is within spec so nothing to worry about.
     
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  7. 83pickup

    83pickup Enthusiast

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    Should be, although I have noticed a slight flatspot when putting the pedal down about 15% of its travel at lower speeds, but then it catches up. Might need to dial in some of the adjustments and see if that can cure it perhaps. Other than that, runs like a top!
     
  8. Erwin Merida

    Erwin Merida Addict

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    Just make sure your jets are set right.. if I remember right, the back jet is 3.5 turns from zero(full hand tight) nd the front one is 2.5 turns. It's a carb so remember to adjust accordingly (elevation)
     
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