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13B Rotor housings all same???

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Old 10-20-01, 11:39 AM
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Question 13B Rotor housings all same???

Does anyone know if the 13B rotor housings from a GSL-SE and the second generation are the same? I'm thinking the end castings maybe different but the rotor housing maybe the same, does any know for certain??

Thanks
Jim
Old 10-20-01, 12:14 PM
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No they are not.

In '86, Mazda moved the coolant O-rings from the rotor housings to the side housings. This basically means you can't interchange any housings between -'85 and '86+ engines.

They also changed the geometry a lil' bit in '86 so you're supposedly not even supposed to interchange rotors, but I've heard of people doing it.
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