Westerbeke 8.0KW-60Hz Service Manual page 91

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 corraspond to"twomalks less than the actual grade,
I.e.; a grade seven 'bolt will display five embossed marks.
NOTES:
STANDARD BOLT & NUT TORQUE SPECIFICATIONS
5AEGrade5 5AE Grail.li-7 5AE Grade 8
Capsrew Body Size Torque
Torque TOrque
(Inches)' (Thread) fl-lb (Nm) . F\·lb(Nm) R-LbINm)
1/4· 20
8 (11) 10 (14) 12 (16)
·28
10 (14) 14 (19)
5116-18
17 (23) 19 (26) 24(33)
·24
19 (26)
27 (37)
318,16 31 (42) 34 (46) 44 (60)
·24
35 (47) 49 (66)
7116 ·14
49 (66) 55 (75)' 70 (95)
·20 55 (75)
78 (106)
112 ·13 75 (102) 85 (1\5) 105 (142)
·20 85 (115)
120 (163)
9t:t6-12
1\0 (149) 120 (163) 155 (210)
·18
120 (163) 170 (231)
518·\1 150 (203) 167 (226) 210 (285)
·18
170 (231) 240 (325)
314 ·10
270 (366) 280 (380) 375 (508)
·16
295 (400) 420 (569)
7/8· 9
395 (536) 440 (597) 605 (820)
·14
435 (590) 675 (915)
1· 8
590 (800) 660 (B95) 910 (1234)'
·14
660 (895)
990 (1342)
Metric boll class numbers identify bolts by their strength with 1 0.9 the
strongest.
METRIC BOLT & NUT TORQUE SPECIFICATIONS
Boll
Grade 4.6 Grade 4.8
Grade 8.8' 9.B Grade 10.9
Dla. Wrench Size R-Lb(Nm)
Ft-Lb (Nm)
Ft·Lb (Nm)
FI·Lb (Nm)
MS 5.5mm
D,S (0.5) 0.5 (0.7)
, 1 (\.S)
1.5(2)
M4 7mm 0.8 (1.1) 1 (1.5) 2 (3) 3 (4.5)
M5 Bmm 1.5 (2.5 2(3) 4.5 (6) 6,5(9)
MB ·10mm
3 (4) 4 (5.5)
7.5 (10) 11 (15)
M9 13mm 7 (9.5)
to (13)
18. (25) 35(26)
MID
16mm 14 (19) lB (25) 37 (50)
55 (75)
M12 18mm 26 (35) 33 (45) 63 (85) 97 (130)
M14 21mm 37 (50) 55 (75).
103 (140) 151 (205)
M16 24mm 59 (80) 85 (115) 159 (215) 232 (315)
M18 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)
M24 36mm 203 (275) 288 (390)
553 (750) 789(1070)
M27 41 mm 295 (400)' 417 (565) 811 (1100) t154 (1565)
M30 46mm
' 402(545)
566 (770)
1\03 (1495) 1571 (2130)
M33 51mm 546 (740) 774 (1050) 1500 (2035) 21S9 (2900)
M36·
55mm 700 (950) 992 (1345)
1925 (2610)
2744 (3720)
.
,--
NOTE: FotmukI to convert
Ft~Ibs.to
Nm (Newton Meters), multiply Ft·lbs by 1.356.
SEALANTS & LUBRICANTS
GASKETS/SEALANTS
Oil based PERMATEX #2 and ifs HIGH TACK equlvatent are excellent all
purpose sealers.
They
are effective In'just about any joint in contact with
cootan~
raw water, oil or fuel.
A light coating of OIL or L1aUID TEFLON can be used on rubber gaskets
and O·rings.
LOCTITE hydraulic red sealant should be used on ail adapter hoses and the all
filter assembly. '
Coat both surfaces of the all pan gasket with high temp RED SILICONE sealer.
When Installing gaskets that seal around water (coolant) passages~ coat both
sides with WHtTE SILICONE grease.
Hlgh·copper ADHESIVE'SPRAYS are useful for hotding gaskets In position dur·'
Ing
as~embly.
Specialized 'gasket sealers such as HYLOMAR work well In ,applications requir·
ing non·hardenlng properties. HYLOMAR is particlariy effective on
capper cylinder·head gaskets as it resists fuei oil and watet
'--"'!!!t,
Use L1aUID TEFLON for sealing pipe plugs and fillings that connect coolant
passages. Do not use tape seatants\
BOLTS & FASTENERS/ASSEMBUES
Lightly oil head bolts and other fasteners as Y9u assemble them. Bolts and '
plugs that penetrate the water jacket should be sealed with PERMATEX 112 or
HIGHTACI<'
When assembling the flywheet, 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 iswaterproo!, Ideal for water pump bearings and stuff·
ing boxes.
Heavily 011 all sliding and reciprocating components when assembling. Always
use clean engtne oil!
Engines
&
GIfiIerl!ltors
85