Hi guys, I have a 1990 325ix with a blown motor. currently looking at a good deal on a 1986 m20b25 out of a 325ix. I’m seeing most of everything is adaptable onto the head and block, but wondering if there are any issues I’ll run into with the drivetrain and ecu.
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As long as it's not an eta and you change things such as sensors, oil pan and the thermostat housing, it ought to work just fine...
www.realoem.com has part numbers broken out, if you want to go through it carefully.
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now, sometimes I just mess with people. It's more entertaining that way. george graves -
That info what you are giving, it is bolt on job...When you have old engine out and you have "new" engine by side you can see what need to take your current engine to that "new" engine...
It looks like that your current engine is Motronic 1.3 ECU system and "new" engine is -86 so it should be Motronic 1 ECU system, so i would take from your current engine, water pump/belt pulley, harmonic balancer, crank shaft position sensor/holder, oil level sensor, engine wire harness.Comment
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Intermediate shaft/oil pump should be different/spin the other way. Oil pressure relief also likely different. Might need an extra hole drilled for oil pan (or plugged/ignored, I can't remember which way.
Not sure the best route for what to change over as far as the above.
I would run all the '90 ix electronics, I think there are ABS differences that may be tied into the ECU?
I haven't owned an ix in 10 years so I'm rusty.Originally posted by priapismOriginally posted by shamesonComment
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