05-23-2004, 10:12 PM
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Senior Club Cobra Member
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Join Date: Dec 2001
Location: Glendale,
AZ.
Cobra Make, Engine: Cobray-C3, The 60's body lines on todays chassis technology
Posts: 2,302
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Not Ranked
It is possible to have 25 degrees initial lead. It would be very easy to be off several degrees from what you think is TDC without using a piston stop, reverse rotation and split difference for true TDC.
As mentioned in earlier post I would check timing idicated with timing light, vac. disconnected at low RPM. Record any number you get and then turn engine by hand being careful not to exceed that mark. If you go past a few degrees you must back up 20 or more degrees and repeat in proper direction to allow for chain slack.
An adjustable advance feature on light is worth its weight for checking amount of vac advance, mechanical adv, total timing and at what RPM. You can do all this with masking tape if needed. send me a note if you want to know how to do that with masking tape.
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