10-03-2009, 01:47 PM
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CC Member
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Join Date: Jun 2003
Location: Palma de Mallorca, Spain,
ESP
Cobra Make, Engine: Contemporary with 482 KC/SO, TKO600,IRS Jag/AMP, 3.54 Salisbury PL,
Posts: 582
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Not Ranked
I finally think I found what was wrong. I modified a distributor cap making a big square hole in front of one of the terminal points for cylinder #1 and checked with the timing light
The spark would jump while the rotor point was past the #1 terminal. I did loosen up the screws holding the magnetic pickup and pushed it as far as I could to the most advanced position.
Now the point and terminal match perfectly at idle and at max engine speed.
Apparently MSD does not do a perfect job in phasing the rotor as they claim.
Now the timing is consistent and does not jump around above 3500 rpm.
I also made myself a larger stop bushing (10mm diameter) in order to be able to set 21º initial advance with a max advance of 36º.
The black stop bushing MSD provides did give me with a 21º initial a 42º maximum advance. Some wear of the interior diameter and a not very tight fixing was giving me 3º more advance than the 18º advertised.
I am using the two heavy silver springs.
Runs very well now.
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