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Re: Tuners Unite - Final Fix
Posted by kansas (more from kansas) on Sun, 11 Nov 2007 10:23:59
In Reply to: Tuners Unite - Final Fix, Gary Piland, Fri, 9 Nov 2007 16:10:36
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I'm glad Gary got it settled and await his answer with interest. Sounds like a barely-detectably different distributor body was rebuilt and sold to him. To your specific question, I do not know how he found the problem but can think of three ways offhand. 1) Physical comparison of the correct and incorrect distributors side by side, I'm suspecting that as most likely. 2) Part number comparison, Bosch stamps part numbers very clearly on distributor bodies. 3) Oscilloscope analysis of the secondary ignition pattern might not reveal the problem to most operators, including myself, but a party with broad experience and correct diagnostic equipment would be able to suspect or identify an excessive rotor gap and thus get a clear hint in the right direction. This method depends on training, experience, and equipment, and operators capable of analyzing ignition problems in this way are few and far between==but figuring it out should be a half-hour job for the right guy. Diagnostic techniques are on the march. There is likely a different cap/rotor combination that would have correctly fit the erroneous distributor.
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