Do not interchange the crankshaft journal bearings. To obtain the correct crankshaft-journal-to-crankshaft-journal-bearing clearance and prevent engine damage, the crankshaft journal bearings must be installed in their original positions.
a. Clean the crankshaft journal bearings, crankshaft journals, and bearing portions of the crankcase.
b. Place the upper crankcase upside down on a bench.
c. Install the crankshaft journal upper bearings ® and the crankshaft into the upper crank-case.
Align the projections ® on the crankshaft journal upper bearings with the notches © in the upper crankcase.
d. Put a piece of Plastigauge® crankshaft journal.
Do not put the Plastigauge® over the oil hole in the crankshaft journal.
e. Install the crankshaft journal lower bearings ® into the lower crankcase and assemble the crankcase halves.
• Align the projections @ of the crankshaft journal lower bearings with the notches © in the lower crankcase.
• Do not move the crankshaft until the clearance measurement has been completed.
f. Tighten the bolts to specification in the tightening sequence cast on the crankcase.
1st: 12 Nm (1.2 m*g, 8.7 fWb) 2nd: 25 Nm (2.5 m^kg, 18 fMb) *3rd: 27 Nm (2.7 m^kg, 20 fWb) Bolt ©, 12
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