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Re: First time using timing light. Need basic readings
[Re: 68Bullit]
#151353
11/15/08 05:34 PM
11/15/08 05:34 PM
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Joined: Nov 2003
Posts: 36,040 Lincoln Nebraska
RapidRobert
Circle Track
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Circle Track
Joined: Nov 2003
Posts: 36,040
Lincoln Nebraska
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see what you have at slow idle maybe 5 or 10 BTDC and you might check your total advance by making a mark 2&1/4" to the right of the factory slot mark on the harmonic dampener which would be 35.5 degrees checked at ~3000 rpm or so just as long as you are past the rpm point where it wont advance anymore. did you get a dial back light? & no vacuum advance right.
live every 24 hour block of time like it's your last day on earth
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Re: First time using timing light. Need basic readings
[Re: JimG]
#151356
11/15/08 08:00 PM
11/15/08 08:00 PM
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Joined: Jun 2006
Posts: 5,161 CT
GTX MATT
master
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master
Joined: Jun 2006
Posts: 5,161
CT
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Do you have a light with a variable timing setup within it? Can you adjust something to advance the light itself? I have one thats great because I can set the dial on it to whatever advance I want and then when the dampner says 0 degrees advance Ive got whatever timing is on the light. Unfortunately its actually my dads and about 20 years old and reads 3-7 degrees off! So i had to pick up a cheapie from autozone for 50 bucks that just reads straight up and I have to use the tab on the side of my dampner. Its alright for my car but for one like my buddies Mustang that doesnt have a tab or timing tape youre pretty much guessing with it.
Anyway if youve got no timing tape you want to bring your number on cylinder to top dead center on the power stroke (when it should be sparking) and mark a line right next to your timing tab indicator for top dead center next to the dampner. This is top dead center. You should have a timing tab as I call it use that to help set it, I think they only go to 10 degrees advance so if you need more than that youre out of luck. Youre going to have to connect your positive and negative to the battery, and then the other clamp wire around the number one cylinder plug wire. Then aim the light at the timing mark and when it flashes whatever the little timing tab reads next to your TDC line is the timing its set at.
Loosen the distributor clamp just enough so that its a little tough to turn the dizzy and slowly move the dizzy until you have the timing you want. Its always easier to do this with two people IMO.
Now I need to pin those needles, got to feel that heat Hear my motor screamin while I'm tearin up the street
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