finally.
Originally Posted by 1989-FORD-F150
Mines on the hood and it says .052-.056 I'm pretty sure mine at at .054 right now
At warm Idle, take a voltage reading from the Alternator Positive post to ground.
Do you know what your warm idle RPM is?
Should be 650-675 RPM for a 302 w/ A/T.
A midge more for a M/T.
Originally Posted by ymeski56
Either a poor POS or Negative connection, or a diode(s) in the Alternator are pooching.
At warm Idle, take a voltage reading from the Alternator Positive post to ground.
Do you know what your warm idle RPM is?
Should be 650-675 RPM for a 302 w/ A/T.
A midge more for a M/T.
My stock gap is .042-.046 , for my 87' 302. I did the upgrade & originally settled at .060. Then I went to a modified side gap copper core, gapped to .054. Keep in mind, my upgrade included a 60K volt, low Ohm coil.
Originally Posted by ymeski56
My stock gap is .042-.046 , for my 87' 302. I did the upgrade & originally settled at .060. Then I went to a modified side gap copper core, gapped to .054. Keep in mind, my upgrade included a 60K volt, low Ohm coil.
That's fine. I just wanted a bit more "bang"!
Last edited by ymeski56; Aug 14, 2011 at 07:58 PM.
Originally Posted by ymeski56
That's fine. I just wanted a bit more "bang"!
So I put one on the pos terminal and one on a ground. It read 14 volts at a warm idle. Then just for SnG's I turned my headlights on and checked again.
It read 12.8, and steadily dropped from there to around 12.6-12.5 before I turned my lights off. After which it quickly rose back to 14.


