Recent content by Godwinaustin

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    Quadrajet Adjustment Question

    Interesting comment on the pcv ... this high idle started after I replaced the gasket pcv valve and hose. I checked the seal to the crankcase , but I’ll recheck the hose and the valve itself.
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    Quadrajet Adjustment Question

    So I double checked base timing and it was at 12, I dropped it to 8 just to get the idle down but it’s still fast even with the idle speed screw all the way out. ive concluded, after my own research and all the help here , that there has to be a vacuum leak somewhere. Guessing it’s the base...
  3. G

    Quadrajet Adjustment Question

    So I double checked base timing and it was at 12, I dropped it to 8 just to get the idle down but it’s still fast even with the idle speed screw all the way out. ive concluded, after my own research and all the help here , that there has to be a vacuum leak somewhere. Guessing it’s the base...
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    Quadrajet Adjustment Question

    this may explain why a small amount of gas came off with the vacuum cap I pulled on the back of the carb (the side where the secondaries are) either way I had noticed that linkage missing and have a new one coming Saturday. I’ve noticed some quadrajets have two of those vacuum actuators but...
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    Quadrajet Adjustment Question

    Thank you ! That’s good advice on the idle screw I’ll turn it in and reduce timing if necessary ... also need to replace the vacuum brake linkage
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    Quadrajet Adjustment Question

    Also ... I thought the choke disengaged through the thermal metal coil releasing in the choke mechanism and didn’t require vacuum to disengage
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    Quadrajet Adjustment Question

    Interesting .... Well My carb does have a brake actuator , but it is on the opposite end towards the front of the car ... although the schematic indicates it’s on the side closest to the firewall ... it IS missing the brake linkage which I ordered yesterday. That one definitely interacts with...
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    Quadrajet Adjustment Question

    I would think that too , but I didn’t have a high idle until I started messing with the idle screws and vacuum lines
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    Quadrajet Adjustment Question

    I’m only at 15 pounds of vacuum but I’m guessing that’s cause the idle is high , until I manage to get the idle down from where it is around 1000 (guessing) I won’t be able to pull a proper vacuum reading for fuel mixture...
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    Quadrajet Adjustment Question

    Since I don’t have an air pump or a Canister or any of that other emissions stuff what does the diverter valve (Dvtr valve on the schematic) do ? Should it get ported or manifold vacuum ? according to the schematic my dizzy should be hooked to manifold vacuum but as far as I know the newer...
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    Quadrajet Adjustment Question

    Alright guys ... so went down the vacuum port rabbit hole a bit ... attached is the diagram from the airbox. According to this diagram dizzy should be hooked up to the other side of the carb closest to the cab, which seems to be a manifold vacuum source (It’s currently connected to the ported...
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    Quadrajet Adjustment Question

    Also found out I’m missing the vacuum brake linkage/rod that connects to The secondary plates ... could have something to do with it
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    Quadrajet Adjustment Question

    I’ve got a high idle too ... won’t idle down after warming up ... something may be sticking. I checked the timing and it is spot on at 14 degrees with the advance off.
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    Quadrajet Adjustment Question

    I currently have my idle screw all the way out , such that it is not tensioning the cable whatsoever or putting any pressure on the little plate at the end of the screw. my question is , am I supposed to tune the air/fuel mixture with base (minimal) tension on the cable (where the idle screw...
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    LMC Heavy Duty harness (quad headlight )

    that’s helpful ... I wasn’t sure if all 4 should be on with high beams on.... so the low beam lights (top row) are dual filament then ?
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