1st Generation Specific (1979-1985) 1979-1985 Discussion including performance modifications and technical support sections

How to tell what year 12a?

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Old 11-25-07, 06:07 PM
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How to tell what year 12a?

How can I tell what year 12a I have and what are the differences between all the years? Also, how can you tell the difference between the earlier 12a rotors and the lighter 83-85 12a rotors? Thanks, I have two torn apart right now and they both came out of old school cars but look like later model first gen blocks, I think. Thanks
Old 11-25-07, 06:14 PM
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As long as you remember which flywheel came off which engine you can use the flywheel.
http://www.mazdatrix.com/faq/flywheel.htm
Old 11-26-07, 11:23 AM
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Do the side plates have a Y cast into them?
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