Unimog Club UK

Hi Oliver,

Are you going of the head size or the thread size when you say M12? according to my literature they should be M15 for the main bearing cap and M14/M15 for the connecting rod bolts.
The main bearing caps should be tightened initial torque (Nm) 50+10 and then final torque 90degrees + 20degrees
the connecting rod bolts tightened initial torque(Nm) 100+10 and then final torque 90degrees + 20degrees

cheers, Brian