The BMW oe water temperature sensor may have been outfitted with a self contained crush washer. Why this is the case with some sensors (self contained washer)... don’t know the answer. If you were to google the actual part # to the oe sensor, you’ll see some have the washer and some don’t.
Bert
91 850i-A
1972 3.5 CSi (L-jet, Getrag 265 5 speed)
1988 ///M6
2021 X3 M40i
The back to back BIG COUPE” duo
Thanks to everyone who chimed in with suggestions. I took everything apart, confirmed the oil sprayers worked properly, reset the timing again, put it all back together and she started up fine with no issues.
I suspect the culprit was improper timing reset. This taught me a valuable lesson to be meticulous about double (maybe triple) checking my work.
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Good to hear and thanks for posting the outcome, Could be helpful to someone else.
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