Re: Packard distributor question:
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Just can't stay away
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Needy
Your distributor is working properly, the cam and roter are rotated in the same direction as the shaft rotation to advance them in relation to the cam shaft and crank to cause the points to open sooner in relation to the crank and cause the spark sooner in relation to the crank and cam position, (ie, advanced). If you need any help contact me as I am in Snoqualmie, WA. John
Posted on: 2015/5/17 11:56
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Re: Packard distributor question:
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Just popping in
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John: Thanks for the expert clarification! I now realize that distributors which advance the spark by moving the rotor SHAFT, must move the shaft in SAME direction as shaft rotation to advance.
Whereas distributors which move the BREAKER PLATE to advance, move the breaker plate in the direction OPPOSITE of shaft rotation to advance. It does make a difference which type is being considered!
Posted on: 2015/5/19 23:12
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Re: Packard distributor question:
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Forum Ambassador
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Typically distributors after the mid-30s utilize two mechanisms in the same unit to obtain "total spark control"; the breaker cam movement is a function of the centrifugal advance and the breaker plate movement is a function of the vacuum advance (retard) function. I can't say I've ever seen or heard of a distributor that used the centrifugal advance mechanism to move the breaker plate - but that doesn't mean there isn't some uncommon unit that does so.
Posted on: 2015/5/20 8:47
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