Disassembling and Assembling Crankcase Half

Disassembling and assembling crankcase half

Disassembling And Assembling Crankcase Halves (Part 1):

Disassembling And Assembling Crankcase Halves (Part 2):

Disassembling and assembling crankcase halves

Mounting instructions





1. Before assembling the crankcase halves, check a threaded bore (arrow) on the lower part of the crankcase half of cylinder bank 1 - 3 for continuity.





2. Re-cut thread or cut it all the way through if necessary.
3. Insert an M6 x 40 (was M6 x 35) hexagon-head bolt into this thread with Loctite 574 when assembling the crankcase halves.

Sealing of crankcase halves





Only Drei Bond silicone type 1209 should be used for surface sealing. After application of surface seal (silicone bead), screw together within five minutes.

Application of silicone bead
1. At the processing nozzle, cut off the first metering step.
2. Apply a uniform bead approximately 1.5 mm wide to the cleaned sealing surface of the crankcase half (cylinders 4 - 6).





3. Carefully set the crankcase half in place so that the sealing bead is not damaged.

Tightening sequence for crankcase halves





Tightening torque for hexagon-head bolts 13 Nm (9.5 ft. lbs.)

Fitting crankshaft sealing ring
(Flywheel side)





Insert sealing ring as far as it will go using insertion tool 9609.

(Pulley side)





Insert sealing ring as far as it will go using insertion tool 9610.