Westerbeke 65A-FOUR - Timing Gear;Crankshaft

SERVICING SPECIFICATIONS
Item
Factory Specification
Allowable Limit
Timing
Gear
Idle Gear 1 to Crank
0.049 to 0.193 mm 0.22 mm
Gear
0.0019 to 0.0076 in.
0.0087 in.
(Backlash)
Idle
Gear 1 to Cam
0.049
to 0.189 mm
0.22 mm
Gear
(Backlash)
0.0019
to 0.0074 in.
0.0087 in.
Idle Gear 1 to Idle
0.044
to 0.185 mm
0.22 mm
Gear 2
(Backlash)
0.0017
to 0.0073 in.
0.0087 in.
Idle Gear 2 to
Injection Pump 0.044 to 0.177 mm
0.22 mm
Gear
0.0017 to 0.0070 in.
0.0087 in.
(Backlash)
Cam
Gear to
0.047 to 0.182 mm 0.22 mm
Balancer Gear 1
(Backlash)
0.0018
to 0.0072 in. 0.0087 in.
Idle Gear 1 to
0.044 to 0.183 mm 0.22 mm
Balancer Gear 2
(Backlash)
0.0017
to 0.0072 in. 0.0087 in.
Idle Gear Shaft 1, 2 to Idle Gear 1, 2
Oil Clearance 0.050 to 0.091 mm 0.10mm
Bushing
0.0020 to 0.0036 in. 0.0039 in.
Idle Gear 1, 2
45.025 to
45.050 mm
Bushing
1.7726
to 1.7736 in.
-
(1.0.)
Idle Gear 1, 2 Shaft 44.959 to 44.975 mm
-
(0.0.) 1.7700 to 1.7707 in.
Idle Gear
Side Clearance 0.15to 0.30 mm 0.9 mm
0.0059 to 0.0118 in. 0.0354 in.
Balancer Shaft (Balancer Model Only)
Side Clearance 0.07
to 0.22 mm 0.3mm
0.0028 to 0.0087 in.
0.0118 in.
Balancer Shaft (Balancer Model Only)
Alignment 0.02
mm
-
0.0008 in.
Balancer Shaft (Balancer Model Only)
Oil Clearance 0.070
to 0.159 mm 0.2mm
0.0028 to 0.0063 in.
0.0079 in.
Balancer Shaft
50.92
to 50.94 mm
Journal
2.0047
to 2.0055 in.
-
(0.0.)
Balancer Bearing 51.01 to 51.08 mm
-
(1.0.)
2.0083 to 2.0110 in.
Piston Pin Bore
1.0.
30.000 to 30.013 mm
30.05 mm
1.1811
to 1.1816 in.
1.1831 in.
Compression Ring 2
to Ring Groove
Clearance
0.093
to 0.120 mm
0.20 mm
0.0037 to 0.0047 in. 0.0079 in.
Oil Ring to Ring Groove
Clearance
0.02
to 0.06 mm
0.15 mm
0.0008 to 0.0023 in.
0.0059 in.
~ WESTERBEKE
Engines & Generators
58