harmonic balancer interchange options

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Robert Bondi
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harmonic balancer interchange options

Post by Robert Bondi »

I didn't see this part in the interchange FAQ; it's another question best fielded by someone with multiple BMWs.

I'm expecting wide interchangeability across M30 engines. I did notice different part numbers for the E12, E28 533i, and E28 535i as the M30 evolved. Anyone know what was changing....weight, pulley diameter, more sensors, etc......?
Robert
77 530i
77 Euro 528
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Mike W.
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Post by Mike W. »

Weight, and I think in relationship to crank throw. Pulley diameter may be another factor, but I think it was really about 71MM, 80MM or 86MM throw on the crank. E28 M5 may be another factor with it's 84MM crank.
Mike W.



02 525ita. Wife's, aka grocery getter
02 530i. New to the fleet, 3 pedals.
03 QX4, AKA the Datsun. Finally got the 4WD vacationmoble to stop smoking.
07 Xterra. Still on the DL, a purchase from hell.
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