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01-24-2010, 03:29 AM
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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
Gaz64, you are right, it is the relation between the reluctor and rotor.
I achieved the correction by loosening the pickup screws and taking up the slack of the two holes towards the advanced direction. If that is not enough you need the adjustable rotor.
__________________
Nothing sounds better than a Cobra in a Tunnel !
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01-24-2010, 04:03 AM
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CC Member
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Join Date: Jun 2004
Location: Leicestershire,
UK
Cobra Make, Engine: Kirkham #523, 427 S/O
Posts: 1,137
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Not Ranked
I did do as you suggested and tried moving the pickup as far as possible in the appropriate direction, but it was nowhere near enough to correct the problem. The spark was way past the post and only got worse as the advance came in.
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01-30-2010, 11:19 AM
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CC Member
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Join Date: Jun 2004
Location: Leicestershire,
UK
Cobra Make, Engine: Kirkham #523, 427 S/O
Posts: 1,137
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Not Ranked
Well, I've fitted the adjustable rotor, set it to the right position and re-timed the ignition and..........no change. 
The symptoms are exactly the same as before.  |
01-30-2010, 02:29 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'd say shiiit. I also had misfire symptoms at higher rpm before the distributor thing, and that was the cable going from the MSD box to the distributor. I made myself a shielded one ( a good shielded mains cable will do) and guided it along the firewall and the left engine compartment well away of the alternator. That did away with the most noticeable misfire. The rotor thing did away with the hesitation at cruising speed.
__________________
Nothing sounds better than a Cobra in a Tunnel !
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01-31-2010, 06:02 PM
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CC Member
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Join Date: Jul 2009
Location: Westerly,
RI
Cobra Make, Engine: Fordstroker 408w custom solid roller-Craft ported Brodix 17*heads-CFM ported Vic Jr. intake-1 3/4 primaries- 575hp-TKO-600RR Liberty upgrade- -Moser 8.8 trutrac-McLeod Street Extreme--QA-1-Wilwood brakes, Classic Chambered 3" Cobrapacks, Avon's
Posts: 645
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Not Ranked
I read this late but was interested in the topic. Couldn't you just pull the distributor up and rotate the shaft/rotor counterclockwise or clockwise depending on the pointer location to the post and drop it back in, thus realigning the pointer closer to the post, or would that be too much of a jump either way?
Lou
__________________
Lou
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02-01-2010, 12:01 AM
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CC Member
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Join Date: May 2008
Location: Brisbane,
QLD
Cobra Make, Engine:
Posts: 2,797
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Not Ranked
Quote:
Originally Posted by RET_COP
I read this late but was interested in the topic. Couldn't you just pull the distributor up and rotate the shaft/rotor counterclockwise or clockwise depending on the pointer location to the post and drop it back in, thus realigning the pointer closer to the post, or would that be too much of a jump either way?
Lou
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If you reread the problem you'll see it has nothing to do with the distributor fitment.
The phasing issue comes about from the rotor misaligned to the lead posts at the trigger point, hence the relationship between the reluctor and the rotor is wrong, no amount of "turning and/or refitting" the dizzy will fix it.
__________________
Gary
Gold Certified Holden Technician
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