Westerbeke Universal M3-20B User Manual

STANDARD HARDWARE
BOLT HEAD MARKINGS
Metric bolt class numbers identify bolts by their strength with 10.9 the
strongest.
NOTES: 1. Use tire torque values listed below when specific torque values are not available.
·2. These torques are based on clean, dry threads. Reduce torque by 10% when engine oil is used.
3. Reduce torques by 30% or more, when threading capscrews into aluminum.
STANDARD BOLT & NUT TOROUE SPECIFICATIONS
METRIC BOLT & NUT TOROUE SPECIFICATIONS
SAE Gr.Jde 5 SAEGradelH SAEGrado8
capsrew IkIdy SIze
T .....
Torque
TOI1I111
(In ... )' (llnad) R'Lb(Nm)
Ft·Lb (Nm) A·Lb(Nm)
80lt
Grad. 4.6
Grad. 4.8
Grad. 8.8 - 9.8 Grad. 10.9
Dla. Wrench S~. A-Lb (Nm) Ft·Lb (Nm) Ft-Lb(Nm)
FI-lb (Nm)
1/4·20 8 (11)
10 (14) 12(16)
·28
10 (14) 14(19) M3 5.5mm
0.3 (0.5) 0.5 (0.7) 1 (1.3) 1.5 (2)
5/16 ·18
17 (23) 19 (26)
24 (33)
·24
19 (26) 27 (37)
M4 7mm
0.8(1.1) 1 (1.5) 2(3) 3 (4.5)
M5 8mm
1.5 (2.5 2(3) 4.5(6) 6.5 (9)
3/8 -16 31 (42)
34 (46) 44(60)
-24 35(47)
49 (66)
M8 10mm 3 (4) 4 (5.5) 7.5 (10)
11 (15)
M9 13mm 7 (9.5) 10(13) 18 (25)
35 (26)
7116-14
49(66) 55 (75) 70(95)
M10 16mm 14 (19) 18 (25) 37 (50)
55 (75)
-20
55 (75)
78(106)
112 -13 75 (102) 85 (115) 105 (142)
-20 85 (115) 120 (163)
M12 18mm 26 (35) 33(45) 63(85) 97 (130)
M14
21 mm 37 (50) 55 (75) 103 (140)
151 (205)
M16
24mm 59 (80) 85 (115) 159 (215) 232 (315)
9/16 -12 110 (149)
120 (163) 155 (210)
-18 120 (163) 170(231)
M18 27 mm 81 (110)
118 (160) 225 (305) 321 (435)
518-11
150 (203) 167 (226) 210 (285) M20 30mm
118 (160) 166 (225) 32t (435)
4571620)
-18 170 (231) 240 (325) M22
33mm 159 (215) 225 (305) 435 (590) 620 (840)
314-10
270 (366) 280 (380) 375 (508)
-16 295 (400) 420 (569)
7Ja- 9 395 (536) 440 (597) 605 (820)
-14 435 (590) 675 (915)
M24
36mm 203 (275) 288 (390) 553 (750) 789 (1070)
M27
41 mm 295 (400) 417 (565) 811 (1100)
1154 (1565)
M30 46mm 402 (545) 568 (770) 1103 (1495)
1571 (2130)
1 - 8
590 (800) 660 (895)
910 (1234)
-14 660 (895)
990 (1342)
M33 51 mm
546 (740) 774 (1050) 1500 (2035) 2139 (2900)
M36 55 mm
700 (950) 992 (1345) 1925 (2610) 2744 (3720)
SEALANTS & LUBRICANTS
GASKETS/SEAlANT
Oil based PERMATEX 12 and it's HIGH TACK equivalent are excellent all
purpose sealers. They are effective in just about any joint in contact with
coolant, raw waler, oil or fuel.
A light coating of OIL or LIQUID TEFLON can be used on rubber gaskets
and O-rings.
LOCTITE hydraulic red sealant should be used on oil adapter hoses and the oil
filter assembly.
Coat both surfaces of tilt oil pan gasket with high temp RED SILICONE seal"
When instafling gaskets that seal around water (coolant) passages, coat both
sides with WHITE SILICONE grease.
High-copper ADHESIVE SPRAYS are useful for holding gaskets in position dUr-
ing assembly.
Specialized gasket sealers such as HYLOMAR work well in applications requir-
ing non-hardening properties. HYLOMAR is particlarly effective on
copper cylinder-head gaskets as it resists fuel, oil and water.
46
Use LIQUID TEFLON for sealing pipe plugs and lillings that connect coolant
passages. Do not use tape s.alantsl
BOLTS & FASTENERS/ASSEMBUES
Lightly oil head bolts and other fasteners as you assemble them. Bolts and
plugs that penetrate the water jacket should be sealed with PERMATEX #2 or
HIGH TACK.
When assembling the flywheel, coat the bolt threads with LOCTITE blue.
Anti-seize compounds and thread locking adhesives such as LOCTITE protect
threaded components yet allows them to came apart when necessary.
LOCTITE offers levels of locking according to the job.
LITHIUM based grease is waterproof, ideal lor water pump bearings and stuft-
ing boxes.
Heavily oil aU sliding and reciprocating components when assembling. Always
use clean engine oil!

Westerbeke Universal M3-20B Specifications

General

Brand	Westerbeke
Model	Universal M3-20B
Category	Engine
Language	English