Crankcase Cover Installation - Mercury 40 Service Manual

CYLINDER BLOCK/CRANKCASE

Crankcase Cover Installation

1. Clean off all oil from the contacting surfaces of the crankcase cover and cylinder block.
IMPORTANT: Make sure the contacting surface of the crankcase cover and cylinder
block are clean before applying gasket sealant.
2. Apply a smooth even coat of Loctite Master Gasket Sealant to the contacting surfaces
on the crankcase cover. Use a small (paint type) roller to spread out the sealant for a
smooth even coverage. Instructions in gasket sealant kit must be followed exactly.
NOTE: Do not apply gasket sealant to the main bearings or the bolt holes.
a -
b -
3. Apply oil to bolt threads. Tighten bolts in sequence and in two steps to the specified
torque.
a -
b -
Page 4B-34
b
Apply Loctite Master Gasket Sealant
Use a Roller to Apply a Smooth Even Coat
19 19
9 10
9
10
15 15
a
5 5
6
6
11 11
1
1 2
b
14 14
4 4 3
18 18
8
8
Center Bolts (10)
Outer Bolts (10)
Crankcase Cover Bolt Torque
Center Bolts Qty. 10 (Larger Diameter M8)
1st: 11 lb-ft (15 Nm)
2nd: 22 lb-ft (30 Nm)
Outer Bolts Qty. 10 (Smaller Diameter M6)
1st: 53 lb-in. (6 Nm)
2nd: 106 lb-in. (12 Nm)
53821
2
20
20
16
16
12 12
2
13 13
3
17
17
7 7
53743
a
90-828631R3 MARCH 1999