how to set timing?
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the back and forth jumping, to me, sounds like either a misfire or a stretched out timing belt...
Use it the same way. Set dial to "0" and rock and roll.
Degreees on the wheel set correction in the retarded direction. The electronics in the light measure frequency (RPM from sparkplug wire induction) and divide into degrees. That way they stay accurate over a range of RPM. It will delay flashing the light as many crankshaft degrees as the dial is set for.
I like them. Once timing is set where you want it per reference marks, you can pull the shorting jumper from the ECU and measure the idle advance in real time using the dial to bring the marks back to "0" on the crank pulley and read the correction degrees off the know and know the idle advance.
Agree with B16Racer on the back and forth jumping is something else all together and nothing to do with advance or retard. The relationship cam to crank and timing heil effect timing strobe sensors should be stable. If it's jumping around, something's wrong somewhere. My first suspects, cap, rotor, plug wire or heil sensor.
Try the light on another car to be sure it's solid.
Degreees on the wheel set correction in the retarded direction. The electronics in the light measure frequency (RPM from sparkplug wire induction) and divide into degrees. That way they stay accurate over a range of RPM. It will delay flashing the light as many crankshaft degrees as the dial is set for.
I like them. Once timing is set where you want it per reference marks, you can pull the shorting jumper from the ECU and measure the idle advance in real time using the dial to bring the marks back to "0" on the crank pulley and read the correction degrees off the know and know the idle advance.
Agree with B16Racer on the back and forth jumping is something else all together and nothing to do with advance or retard. The relationship cam to crank and timing heil effect timing strobe sensors should be stable. If it's jumping around, something's wrong somewhere. My first suspects, cap, rotor, plug wire or heil sensor.
Try the light on another car to be sure it's solid.
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someone on h-t suggested the cap and rotor as well.. it does kinda *putt, putt* a little at idle
either way, i knew the timing was off.. just didnt know by how much till today, lol.. got it fixed.. gonna recheck it tomorrow or maybe tonight after the woman gets home and see if its still at 16btdc
either way, i knew the timing was off.. just didnt know by how much till today, lol.. got it fixed.. gonna recheck it tomorrow or maybe tonight after the woman gets home and see if its still at 16btdc
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d-mon
what r u compensating 4?
to put it all together,
if you have the correct pulley for the head you are using, you can:
A. set timing with NON-adjustable gun on red mark.
B. set timing with adjustable gun (set to 0)on red mark.
C. set timing with adjustable gun (set to 16)on white mark.
Also, if you are 1 or more teeth off on your belt, the distributor will not turn far enough to bring the marks close enough to set the ignition timing correctly.
don't forget your service jumper while adjusting ignition timing
if you have the correct pulley for the head you are using, you can:
A. set timing with NON-adjustable gun on red mark.
B. set timing with adjustable gun (set to 0)on red mark.
C. set timing with adjustable gun (set to 16)on white mark.
Also, if you are 1 or more teeth off on your belt, the distributor will not turn far enough to bring the marks close enough to set the ignition timing correctly.
don't forget your service jumper while adjusting ignition timing
Yeah - good point d-mon.
Use the light on "0" and set timing to spec. We'll do the other stuff later.
If ya "Zeroed" it with the knob set to 16 degrees then it's advanced 16 degrees.
I can't tell you how many time's I've driven off with the service jumper still installed. Sometimes remembering a couple of days later.......
Use the light on "0" and set timing to spec. We'll do the other stuff later.
If ya "Zeroed" it with the knob set to 16 degrees then it's advanced 16 degrees.
I can't tell you how many time's I've driven off with the service jumper still installed. Sometimes remembering a couple of days later.......
Should be right now.