Engine/Generator Specifications - Westerbeke 6.5 MCG Service Manual

STANDARD HARDWARE TORQUES
NOTE:
Unless stated otherwise for a specific assembly, use the following torque values when tightening standard hardware .
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•
Grade4
Pitch
lb-ft
. kg-m
Grade 7T, 8T and 8.8 Pitch
lb·ft kg·m
6mm bolt head/nut
1
2.9-5.1
0.4.0.7
6mm bolt head/nut
1
5.8·8.7
0.8-1.2
Bmm bolt head/nut
1.25 7.2-11.6 1.0-1.6
amm bolt head/nut 1.25 14.5-21.7
2.0·3.0
1 Omm bolt head/nut
1.25 13.7-22.4 1.9-3.1
10mm bolt headfnut 1.25 28.9-39.8
4.o-5.5
1 Omm bolt head/nut 1.5 13.o-21.7 1.8-3.0
10mm bolt head/nut 1.5 26.8-37.6
3.7-5.2
12mm bolt head/nut
1.25 (ISO) 25.3-39.8
3.5-5.5
12mm bolt head/nut 1.25 (ISO) 54.2-75.9
7.5-10.5
12mm bolt head/nut
1.5 25.3-39.8 3.5-5.5
12mm bolt head/nut 1.5 50.6-65.1 7.0-9.0
12mm bolt head/nut
1.75 21.7-36.2 3.Q-5.0
12mm bolt head/nut 1.75
43.4-61.5 6.0-8.5
13mm bolt heacl!nut 1.5 32.5-50.6 4.5-7.0
13mm bolt head/nut 1.5 57.9·86.8
8.0.12.0
14mm bolt head/nut
1.5 36.2-57.9 5.o-8.o
14mm bolt he3illnut 1.5 72.3-108.5
10.0-15.0
14mm bolt head/nut .2 34.o-55.7 4.7-7.7
14mm bolt head/nut 2 68.7-101.3
9.5-14.0
16mm bolt head/nut
1.5 54.2-79.6 7.5-1'1.0
16mm bolt head/nut 1.5 108.5-166.4
15.0-23.0
16mm bolt head!nut 2
51.4-76.7
7.1·10.6
16mm bolt head/nut 2 101.3-159.1
14.0.22.0
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Grade&r
Grade 5 Cap Screw
Smm bolt heacl!nut
1 4.3-6.5 o.s-o.9
1/4UNC 9-11
1.2-1.5
Bmm bolt headfnut
1.25 10.8-15.9
1.5-2.2
1/4UNF
11-13
1.5-1.8
·1omm bolt head!nut 1.25 21.7-32.5 3.o-4.5
5116 UNC
18-20
2.5-2.8
1 Omm bolt head!nut 1.5 19.5-30.4 2.7-4.2
5116 UNF
21-23
2.9·3.2
12mm bolt head/nut
1.25
(ISO)
36.2·57.9 5.o-8.o
318UNC
28-33 3.7·4.6
12mm bolt head/nut
1.5 36.2·50.6 5.11-7.0
318 UNF 3o-35
4.1·4.8
12mm bolt head/nut
1.75 34.7-49.2 4.8-6.8
7116 UNC
44·49 6.1-6.8
7116 UNF
50· 55 6.9·7.6
1/2UNC
sa-.73 9.4-10.1
1/2 UNF 73-80
10.1·11.1
BOLT DIAMETER BOLT HEAD MARK
4 7 10
M6 0.3-0.5 0.8-1.0 1.0 ·1.3
MS 1.0·1.3
1.5. 2.2
2.5·3.5
M10 1.8. 2.5
3.0 ·4.2
5.0. 7.0
M12 3.0·4.2 5.5· 7.5 9.5 ·12.0
M14
5.0·7.0 8.0·11.0 16.0 ·19.0
PARTS REQUIRING SEALANT
SURFACES REQUIRING SEALANT
SEALANT
(where to mount sealant coated parts)
Taper Screw 112"
Thread portion (Gear Case) Liquid Teflon
Taper Screw 114"
· Thread portion. (Cylinder Block right side, pump cover) Liquid Teflon
Taper Screw 118" Thread pprtion· (Cylinder Head rear surface)
Liquid Teflon
Water Drain Plug Thread portion (Cylinder Block right side, rear middle portion) Liquid Teflon
OR Pressure Switch Thread portion (Cylinder Block right side surface) Liquid Teflon
· Side Seal Periphery (Main Bearing Gaps No. 1 and No.5) Permatex #6B
Bearing Cap No. 1 Contact surface with Cylinder Block Permatex #68
Enpines
&
Generators
86