Z Series E85 M roadst (S54) ROADST
Note:
Remove plastic thread.
Coat main bearing shells and crankshaft with engine oil.
Insert main bearing cap in such a way that grooves of main
bearing shell guide lie on one side.
Align main bearing cap flush with side of bearing seat.
Installation:
Always replace screws of main bearing caps with new ones.
There must be no oil in the blind holes (risk of cracking).
Note:
Wash and oil main bearing bolts.
Holders for oil lines are fitted on main bearing caps 3 and 5.
Caution!
Holders (1 and 2) are different.
Holder (1) with elongated hole in vertical direction.
Holder (2) with elongated hole in horizontal direction.
Tightening specifications for main bearing:
1)
Tighten all screws on main bearing cover with jointing torque.
2)
Unfasten screws on main bearing cover 6.
3)
Strike back and front of crankshaft with plastic hammer to
center thrust bearing (do not damage crankshaft).
4)
Tighten screws of main bearing cover 6 with jointing torque.
5)
Tighten down all screws on main bearing caps with special
tool 00 9 120 and torsion angle.
Tightening torque, 11 11 1AZ.
RA Replacing all crankshaft main bearing shells (S54)
BMW AG - TIS
06.02.2013 19:36
Issue status (12/2007) Valid only until next DVD is issued
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