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equality72521 equality72521 is offline
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Join Date: Jul 2006
Location: Brandon, FL
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Originally Posted by mark houghton View Post
I think this has been a source of confusion in some instances.

In reading the manuals, on some cars you're instructed to set the timing at 4000 rpms (some with and some without the hoses connected), then check the timing at idle against the specs with hoses connected (to confirm the vac retard). Setting it at 4000 means twisting the dizzy to get the correct value. Checking at idle means just that...check to confirm it's correct. If it isn't correct at idle, then there is something wrong with your dizzy advance mechanism and you're recommended to have your dizzy checked out/repaired. If after going through setting at 4000 and it ends up not being correct at idle....and if you were to twist the dizzy again to correct the idle (since there is no other way to affect or adjust the action of the pot/can), then it will be off at 4000 rpm. Obviously the most important setting is your 4000 timing when all your mechanicall advance is in.

Make sense?
That is exactly it. I wasn't as clear in my description. Set at 4000, check at idle. Edited the other post for clarity.
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Last edited by equality72521; 04-03-2010 at 07:34 AM..
Old 04-03-2010, 07:16 AM
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