Westerbeke 8.0KW-60HZ Operator's Manual page 54

STANDARD HARDWARE
BOLT HEAD MARKINGS
Bolt strength classes are embossed on the head of each bolt.
Customary (inch) bolts are identifed'by markings two to grade eight
(strongest). The marks correspond to
two
marks less than the actual grade,
i.e.; a grade seven bolt will display five embossed marks.
Metric bolt class numbers identify bolts by their strength with
10.9
the
strongest.
NOTES: 1.
Use the 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 iSl1sed.
3. Reduce torques by 30% or more, when threading capscrews into aluminum.
STANDARD BOLT & NUT TORQUE SPECIFICATIONS
METRIC BOLT & NUT TORQUE SPECIFICATIONS
3AE Grade 5
SAE
Grade
6-7 SM Grade 8
Capsrew Body Size
Torque Torque
Torque Boll Grade 4.& Grade 4.8 Grade 8.8 • 9.8 Grade 10.9
(Inches) • (Thread) Ft-lb (Nm) FI·Lb (Nm) Ft-lb (Nm)
Dia. Wrench
Size
FI·Lb (Nm) FI-Lb (Nm) FI-Lb (Nm) FI·Lb (Nm)
114- 20
8 (11)
10 (14) 12 (1&)
-28 10 (14) 14 (19)
5116-18
17 (23)
19 (26) 24 (33)
-24 19 (26) 27 (37)
M3
5,5mm 0.3 (0.5)
0.5 (0.7)
1 (1.3) 1.5 (2)
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)
318-16
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)
7/16-14 49 (66) 55 (75) 70 (95)
Ml0 16mm 14 (19) 18 (25) 37 (50) 55 (75)
- 20 55 (75)
78 (106)
1/2 - 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 27mm 81 (110) 118 (160) 225 (305) 321 (435)
!V8 -11 150 (203) 167 (226)
210 (285) M20 30mm 118 (160)
166 (225)
321 (435) 457 (620)
-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) M24 36mm 203 (275) 288 (390) 553 (750) 789 (1070)
7/8- 9 395 (536) 440 (597)
605 (820)
-14
435 (590)
675 (915)
M27 41 mm 295 (400)
417 (565)
811 (1100) 1154 (1565)
M30 46 mm 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 55mm 700 (950) 992 (1345) 1925 (2610) 2744 (3720)
NOTE:
Fonnula to convert Ft-Lbs to Nm (Newton Meters) multiply Ft-Lbs by 1.356.
SEALANTS & LUBRICANTS
GASKETS/SEALANTS
Oil based PERMATEX #2 and it's HIGH TACK equivalent are excellent all
purpose sealers. They are effective in just about any joint in contact with
coolant, raw water, oil or fuel.
A light coating of OIL or LIQUID TEFLON can be tJsed on rubber gaskets
and a-rings.
LOCTITE hydraulic red sealant should be used on oil adapter hoses and the oil
filter assembly.
Coat both surfaces of the oil pan gasket with high temp RED SILICONE sealer.
When installing 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.
Use LIQUID TEFLON for sealing pipe plugs and fillings that connect coolant
passages, Do not use tape
sealants!
BOLTS & FASTENERS/ASSEMBLIES
Ughtly 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 for water pump beanngs and stuff-
ing boxes.
Heavily oil all sliding and reCiprocating components when assembling. Always
use clean engine oil!
Engines
&
Generators
47