255
POWERHEAD
ASSEMBLY
10
screws in stages to 168 to 192 in. lbs. (19 to 21.7
N·m).
Repeat steps for opposite cylinder head.
Crankshaft and Connecting
Rods
Rotate cylinder block so crankcase mating flange
is facing up.
Apply Gasket Sealing Compound to lower oil seal
groove in cylinder block. DO NOT put any sealer
in upper seal groove.
Check that main bearing alignment dowel pins are
seated in the block.
Thoroughly clean upper seal area of the crank-
shaft. Install new upper seal on crankshaft. Do not
apply sealer to outside diameter of the seal.
Push all pistons to the top of cylinders. Remove
numbered connecting rod caps.
Gently lower crankshaft into place.
• Orient all crankcase seal ring gaps facing up.
• Align tab on lower bearing seal housing with
hole in crankcase.
• Align upper oil seal in groove.
• Locate each main bearing on its dowel pin. A
mark placed on the bearing race opposite the
dowel pin hole will help in the alignment pro-
cess.
1. Cylinder head screws (28 on V4; 40 on V6) 005289
1. Gasket Sealing Compound
2. Dowel pins
3. No sealer here
005290
11
2
3
1
49068
1. Gaps (up)
2. Lower seal housing
3. Upper oil seal
4. Alignment marks
005291
1
32
4
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