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Small update:
I have got the engine out and on an engine stand now. Had just enough time to pop off the oil pan to quickly inspect before having to stop for the weekend. Definite heat issues at the front of the engine on the ROD caps for Cylinders 1 & 5. We pulled the bearings for Cyl 5 and this is the result. Unbelievable the carnage given the motor had a near perfect oil analysis before the event. The heat is leading me to believe it was oil starvation but more inpsection obviously needs to be done.
More to come but wanted to share the results thus far. So far I have a new used crank, oil pan, AAF pan baffles, oil diverter kit, Mahle Motorsports Forged Pistons, and Bimmerworld Oil Dipstick kit on order. Plan is to break down the engine and send the short block to Ben at Rogue Engineering. I don't trust anyone more and am super thankful he is willing to jump in on this project. He already has my extra crank and is measuring out the journals to ensure proper bearing clearance with the new ACL bearings. We may also machine the upper bearing on the Main Bearing 1 to help with the extra stress that bearing gets on most S65's.
Lot's more to come, this week I'll be tearing down the engine and inspecting the rest of the rod caps/bearings before preping the motor to be shipped to Ben.
Last edited by former 240 s14; 11-05-2025 at 01:27 PM..
Reason: more detail
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