BRP Johnson J30TEL4SUA 2007 Service Manual page 163

IMPORTANT:
Make sure that the alignment tabs
on the bearing shells properly engage the align-
ment notches in the connecting rod and cap. DO
NOT apply oil to the bearing at this time.
1
1. Bearing tab
Install the crankshaft in the cylinder.
Place a piece of Plastigage across the full width of
the bearing on the journal, parallel to the crank-
shaft. DO NOT place the Plastigage over the oil
hole.
IMPORTANT:
DO NOT rotate the crankshaft
while the Plastigage is in place.
1
1. Plastigage
Install the crankcase onto the cylinder.
Apply engine oil to 16 crankcase bolts, then place
the bolts in the bolt holes. Tighten the bolts in the
following manner:
•
STEP 1 – Tighten the bolts to the initial torque
according to the tightening sequence.
•
STEP 2 – Next, tighten the bolts to the second
torque according to the tightening sequence.
PISTON, CYLINDER, AND CRANKSHAFT
•
STEP 3 – Finally, tighten the bolts to the final
torque according to the tightening sequence.
Crankcase Bolt Torques
Bolt size
36 in. lbs.
8 mm
(4 N·m)
71 in. lbs.
10 mm
(8 N·m)
001571
8
16
4
12
9
1
13
001572
5
POWERHEAD
Initial Second
12 ft. lbs.
(16 N·m)
24 ft. lbs.
(32 N·m)
Final
15 ft. lbs.
(20 N·m)
30 ft. lbs.
(40 N·m)
001574
7
7
15
3
11
10
2
14
6
001573
161