Sealants And Lubricants - Westerbeke 8.0KW-60Hz Service Manual

STANDARD
HARDWAR~
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 em,bossed marks.
Metric bolt class numbers identify bolts by their strength with 10.9 the
strongest.
Use the torque values listed below when specific torque values are not available.
These torques are based on clean. dry threads. Reduce torque by 10% when engine oil is ·used.
Reduce torques by 30% or more, when threading capscrews into aluminum.
STANDARD BOLT & NUT TORQUE SPECIFICATIONS METRIC BOLT & NUT TORQUE SPECIFICATIONS
3M Glade 5 SAE Glade 6-7 8AE Grade 8
Capsrew Body Size
TOl1lue
TDI1pIe Torque
8011 Grade 4.6 Grade 4.8 Grad. 8.8 - 9.8 Grade 10.9
(Incbes) -
(I11read) fI-Lb (Nm) FHb(Nm) A-tb (Nm) Di ••
Wrencb Size
A-lb (Nm) F~lb (Nm) Ft-Lb (Nm) FI-lb (Nm)
114 - 20
8 (11) 10 (14) 12 (16)
-28
10 (14)
14 (19)
5/16 -18 17 (23) 19 (26) 24 (33)
- 24 19 (26) 27 (37)
M3 5.5mm
0.3(0.5) 0.5(0.7) I (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)
'7116-14
49(66) .
55 (75) 70(95)
Ml0 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)
9116 -12 110 (149) 120 (163) 155(210)
-18 120 (163) 170 (231)
5/8 -II 150 (203) 167 (226) 210 (285)
-18 170 (231) 240 (325)
MI8 27mm 81 (110) 118 (160) 225 (305) 321 (435)
M20 30mm 118 (160) 166 (225) 321 (435) 457 (620)
M22 33mm 159 (215) 225 (305) 435 (590) 620 (840)
3/4 -10 270 (366) 280 (380) 375 (508)
-16 295 (400) 420 (569) M24 36mm 203 (275)
288 (390)
553 (750) 789 (1070)
718- 9 395 (536)
440 (597) 605 (820)
-14 435 (590) 675 (915)
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 51mm 546 (740) 774 (1050) 1500 (2035) 2139 (2900)
M36 55mm 700 (950) 992 (1345)
1925 (2610) 2744 (3720)
NOTE:
Formula to convert Ft-Lhs to Nm (Newton Meters) muillply Ft-Lhs by 1.356.
SEALANTS & LUBRICANTS
GASKETS/SEAlANTS
Oil based PERMATEX #2 and ifs HIGH TACK equivalent are excellent all
purpose sealers. They are effective in just about any joint in contact with
coolan~
raw water, 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
filler assembly.
Coat both surlaces of the oil pan gasket with high temp RED SILICONE sealer.
When installing gaskets that seal around water (coolant) passages, coat both
sides w~h WHITE SILICONE greas.
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. HYLDMAR is particlarly effective on
copper CYlinder-head gaskets as ~ 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/ASSEMBUES
Ughtly oil head bolts and other fasteners as you assemble them. Bolts and
plugs that penetratelhe water jacket should be sealed With PERMATEX #2 or
HIGH TACK.
When assembling the
f~h
.. l, coat the bolt threads with LOCTITE blue.
Anti-seize compounds and thread loc~ng 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 bearings and stuff-
ing boxes.
Heavily oil all sliding and reCiprocating components when assembling. Always
use clean engine oil!
""" WESTl:RBEKE
Engines & Generators
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