Difference in 12A rotor housings?
02-16-06, 01:49 PM
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Difference in 12A rotor housings?
I've never torn apart a rotary, guess I'll be starting soon. I see that the 12A has 2 different rotor housings: 81-82 and 83-85. Can these be interchanged, and if modifications are required what are they? I have an '82, an '83, and an '84 motor to cannibalize. So far, looks like I have two bad rear rotors (apex seal failure). I should be able to come up with enough good parts to build one motor, if the housings will interchange.
TIA.
TIA.
02-16-06, 05:13 PM
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the 83-85 rotor housings are a little stonger, they did it to help with chatter. if you do a search theres an 84 new model training book, where this is explained.
the housings are interchangeable.
the pre 81 housings are the ones that are slightly different
the housings are interchangeable.
the pre 81 housings are the ones that are slightly different
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