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I lied.....well partially
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Posted by txgrn on July 27, 2005 at 08:17:12 from (209.151.114.98):
In Reply to: Re: dwell posted by txgrn on July 27, 2005 at 06:24:41:
I said in stupidity (what else could it be....Har Har) "Since they open at the same time regardless of the gap......". Was eating breakfast while ago and thinking about what Allan said about having to reset the ignition timing after tweaking the points, which I had done countless times, I started thinking about mechanisms: Why is it that you have to do that? Well I got out a sketch pad and ate with one hand and sketched with the other and what I learned (hadn't thought about) was the fact that the ignition does start earlier with a larger gap....like with a .000000001" gap, the opening starts and stops on just the top of the cam whereas you can open the gap so far that it never closes.....and the difference between these two extremes is distance....of distributor rotation which translates to time (position of dist....hence timing of spark, vs position of piston and other things) and so you affect ignition timing. So, mechanisms won out again. Proved myself wrong by understanding the mechanism. Like I always said, if you can understand how it works (mechanism) it's easy to look till you see where it "doesn't work" and there is your problem. Sorry for the bad info. Mark
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