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Thread: Coolant Loss
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Old 04-04-2020, 08:32 PM   #17
Effduration
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Join Date: May 2017
Location: Boston
Posts: 823
My Ride: '05 330CiC
I have heard and seen enough...history of an overheat, loss of coolant and big differences in psi on a compression test. You either need to install a used engine OR do a head gasket and possibly some valve work on the head you have. There is chance (25% I think) that head would be too far warped to use. A machinist will tell you this for sure, but if it is warped more than 12 thousandths, it is pretty much unusable.

Estimated costs for the various options are above... A used engine might be a little quicker if time is important.

Forget about torquing head bolts..that was a test BMW & their dealers came up with to sell you a new engine. Just plan on time-serting your block if you pull the head off.
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