Service Manual

Propeller Shaft ISB, ISBe and QSB (Common Rail [...]
Page 16-52 Section 16 - Mounting Adaptations - Group 16
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The couplings must be aligned.
A straight edge can be used to help align the couplings
Use a feeler gauge (3) to check the alignment of the
coupling in four different places, 90 degrees apart. The
variation is to be within 0.051 to 0.102 mm [0.002 to 0.004
in].
If the flange is out of alignment the engine mounting will
need to be adjusted until the alignment is correct. Refer to
Engine Mounting/Drive Systems section in the Marine
Recreational Installation Directions, Bulletin 3884649.
Make sure all mounting bolts and nuts are torqued to the
proper specifications. Refer to Procedure 016-026, or the
OEM literature.
Bolt the coupling in place and torque to the specifications
for the capscrew and bolt size.
Specifications
Capscrews, Bolts and Nuts Torque for Fine and Coarse Threads
SAE Grade 5 SAE Grade 8
(1) As Received (2) Lubricated (1) As Received (2) Lubricated
N•m [ft-lb] N•m [ft-lb] N•m [ft-lb] N•m [ft-lb]
1/4 12 ± 1 [9 ± 1] 9 ± 1 [7 ± 1] 19 ± 1 [14 ± 1] 15 ± 1 [11 ± 1]
5/16 26 ± 3 [19 ± 2] 20 ± 3 [15 ± 2] 37 ± 3 [27 ± 2] 30 ± 3 [22 ± 2]
3/8 45 ± 4 [33 ± 3] 37 ± 3 [27 ± 2] 62 ± 5 [46 ± 4] 52 ± 4 [38 ± 3]
7/16 71 ± 5 [52 ± 4] 54 ± 4 [40 ± 3] 99 ± 8 [73 ± 6] 81 ± 7 [60 ± 5]
1/2 108 ± 8 [80 ± 6] 88 ± 7 [65 ± 5] 152 ± 11 [112 ± 8] 122 ± 9 [90 ± 7]
9/16 152 ± 11 [112 ± 8] 112 ± 11 [90 ± 8] 214 ± 16 [158 ± 12] 176 ± 14 [130 ± 10]
5/8 214 ± 16 [158 ± 12] 176 ± 14 [130 ± 10] 304 ± 22 [224 ± 16] 244 ± 20 [180 ± 15]
3/4 380 ± 27 [280 ± 20] 305 ± 27 [225 ± 20] 529 ± 41 [390 ± 30] 434 ± 34 [320 ± 25]
7/8 607 ± 43 [448 ± 32] 488 ± 41 [360 ± 30] 854 ± 68 [630 ± 50] 691 ± 54 [510 ± 40]
1 922 ± 68 [680 ± 50] 732 ± 61 [540 ± 45] 1302 ± 95 [960 ± 70] 1051 ± 81 [775 ± 60]
1 1/8 1152 ± 81 [850 ± 60] 915 ± 81 [675 ± 60] 1844 ± 136 [1360 ± 100] 1491 ± 115 [1100 ± 85]
1 1/4 1593 ± 115 [1175 ± 85] 1254 ± 102 [925 ± 75] 2508 ± 203 [1850 ± 150] 2034 ± 169 [1500 ± 125]
1. Use for all capscrews, bolts, and nuts coated only with the fastener manufacturer's rust preventive oil and use for
parts wiped or washed nearly free of oil. Do not use for plated parts.
2. Use for all capscrews and nuts whose threads and washer faces are lubricated.