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  1. 84prspctr

    4.1 mpg?

    At 85 it’s turning close to 4000 rpm
  2. 84prspctr

    4.1 mpg?

    It feels like it might be in the secondaries on the highway, and does not have much pep at full throttle
  3. 84prspctr

    4.1 mpg?

    would a bad vacuum advance cause it to be this bad?
  4. 84prspctr

    4.1 mpg?

    The carburetor is a couple months old. I pulled the plugs a couple weeks ago and found it to be a little on the lean side, a tan ish color.
  5. 84prspctr

    4.1 mpg?

    Not completely sure on the axle ratio. It’s turning 3000 rpm at 70, about 2500 at around 60 or 65
  6. 84prspctr

    4.1 mpg?

    I don’t have a working speedometer or odometer. I track it through a gps speedo
  7. 84prspctr

    4.1 mpg?

    I know the fuel mileage shouldn’t be that bad. Every time I take the truck out I’m stopping at the gas station at least twice, which isn’t making the wallet happy with gas being over 5 bucks a gallon. Timing is set to 12 degrees initial, carburetor is fine tuned with vacuum gauge, idle mixture...
  8. 84prspctr

    Charging issue

    Got all the new cables on. 4 gauge cable going from alternator output to battery positive, 4 gauge cable from batt positive to distribution block, voltage sensing wire moved to distribution block, now we’re running 14 volts at 1200 rpm with headlights on. 14.6 volts with no lights on, and 13.4...
  9. 84prspctr

    Charging issue

    Tightened the belt more, no more noises. Started it up and it’s charging at 14.6-14.8 at startup then drops down to 14.5. At high idle with all the lights on including bumper lights it’s at 14.5 volts. Once my low idle kicks on it drops to 12.2 with all the lights on, 13.2 with the headlights on...
  10. 84prspctr

    Charging issue

    Before putting on the new belt and putting a bigger charge wire and moving the sensing wire to the distribution block it never squeeled. It only does while revving it.
  11. 84prspctr

    Charging issue

    With just the regular headlights on I’m getting 13.1-13.27 volts at 500 rpm idle and 14 volts at 2500 rpm
  12. 84prspctr

    Charging issue

    I have my alternator charge wire going directly to the battery. I tested voltage again and I was getting 12.35 volts with all the lights on including the off road lights at the alternator, and 12.3 at the battery. So I took a 4 gauge starter cable and put that on to replace the old 10 gauge...
  13. 84prspctr

    Charging issue

    the whole truck is rewired with a speedway harness. The charge wire looks like 10 gauge maybe a little bigger
  14. 84prspctr

    Charging issue

    Second new alternator is on, we’re charging a little better. 14.5 on startup, 13.8 at hot 500 rpm idle, when I turn the lights on it goes down to 13.2 at idle and comes up to 13.5 or so at 2K rpm. When I turn my bumper lights on it drops down below 13 still at idle. This one is a 94 amp 12si
  15. 84prspctr

    Charging issue

    going to get the alternator and battery tested right now. I won’t be able to get a new delco remy unit by Friday, oreilly has a Wilson 12si 94amp reman alternator and a ultima reman alternator that would be here by tomorrow morning. The Wilson has a 1 year warranty and is 75 dollars, while the...
  16. 84prspctr

    Charging issue

    It doesn’t matter if I have the trigger wire plugged in or not, it won’t charge. This one was a brand new one from db electrical. I’m going to have my old alternator tested, I measured the resistance in the battery wire going to the alternator and it’s 0.01 ohms.
  17. 84prspctr

    Charging issue

    The new one worked for about 10 minutes. Quality has really gone down hill I guess. Where would you recommend buying an alternator from?
  18. 84prspctr

    Charging issue

    I cleaned every ground, there’s one going from the battery to the rad support, one going from the battery to the engine block, and one going from the battery to the alternator top bracket. The old alternator would charge it ok with no lights on, and up to 12.7-13.4 volts with the headlights on...
  19. 84prspctr

    Charging issue

    Here’s an update, the new alternator isn’t charging at all anymore. I confirmed this by unplugging the connector from the alternator while it’s running and it’s staying at 12.92 plugged in or not. Doesn’t matter if I rev it or anything now, not charging. Tomorrow I will put my old 12si...
  20. 84prspctr

    Charging issue

    I’m having charging issues. Brand new wiring harness. I made sure every terminal is shiny. Old 12si alternator was making whining noises and was dropping down to 12.4 volts with headlights and bumper lights on. I replaced it with a new 100 amp 10si style alternator. Now it’s getting down to 11.9...
  21. 84prspctr

    Really bad idle

    Found the issue, pulled the needle out sprayed carb cleaner in there followed by compressed air. Put it back in and it runs great so I re tuned it with a vacuum gauge. The filter looks dirty because there’s grime and oil around the outside, it’s really clean inside. I’m putting a new filter...
  22. 84prspctr

    Really bad idle

    I took the cap and rotor off and gave them a good cleaning. It’s still not running good. It’s almost making a slapping sound out the exhaust too
  23. 84prspctr

    Really bad idle

    The best way I can describe what the idle sounds like out the exhaust is it sounds like a 4 cylinder car.
  24. 84prspctr

    Really bad idle

    I scanned the site and can’t really find anything the same as the issue I’m having, truck has been running great for months never let me down, now it is idling like crap. The carburetor has only been on there a couple months and was brand new. I have two fuel filters so I don’t think something...
  25. 84prspctr

    Oil pressure help

    Is there supposed to be a gasket between the pump and mounting surface too?

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