ignition timing - how to find the good angle for the distributor

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gbraun
Posts: 23
Joined: Mon Mar 20, 2017 3:59 pm
Your car is a: Fiat spider 1984 from california

ignition timing - how to find the good angle for the distributor

Post by gbraun »

I have a 1984 2 liters FI spider. I removed the distributor and searching for the good angle to find the correct ignition timing. I can start the car but not sure to have the correct ignition timing . Is somebody could explain me how to do ? Cheers
ORFORD2004
Posts: 1120
Joined: Wed Mar 17, 2010 9:48 pm
Your car is a: 1983 PININFARINA
Location: Sherbrooke, Qc, Canada

Re: ignition timing - how to find the good angle for the distributor

Post by ORFORD2004 »

Start by having a timing light.
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MattVAS
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Joined: Thu May 18, 2017 11:10 am
Your car is a: 1976 Fiat Spider 124

Re: ignition timing - how to find the good angle for the distributor

Post by MattVAS »

Set it to zero and then mount the distributor so that you can easily move it around. Most cars run on 10 degrees of advance which is noted by the timing pointer to the crank pulley. The "instructions" for doing timing are actually pretty long and would take a while to type out. You'll want a shop manual for the full length instructions.
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azruss
Posts: 3659
Joined: Sun May 30, 2010 12:24 pm
Your car is a: 80 Fiat 2000 FI

Re: ignition timing - how to find the good angle for the distributor

Post by azruss »

If the car starts, then you have it close. Try rotating the motor so the cams and crank are at TDC. At this point, the rotor should be pointing to the #4 contact on the inside of the dizzy cap. Look at the where the dizzy lobe and the mag pick up are in relation to each other. If the 2 are lined up, that should be zero advance. Then you can rotate the dizzy 10 degrees advanced and that should get you within a degree or two. (more advanced will make the idle go up). I have tried timing by ear and never got it close. A timing light is the best way to do it.
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