Westerbeke 65A-FOUR - Page 66

SERVICING SPECIFICATIONS
LUBRICATING SYSTEM
Item
Factory Specification Allowable Limit
Engine Oil Pressure
At Idle Speed
49 kPa
-
0.5 kgf/cm2
7 psi
At Rated
Speed
196 to 392 kPa
147.1 kPa
2.0 to 4.0 kgf/cm2 1.5 kgf/cm2
28
to 57 psi
21.3 psi
Engine
Oil Pressure Switch Working Pressure
39.2
to 58.8 kPa
0.4 to 0.6 kgf/cm2
-
5.6 to 8.4 psi
Inner Rotor to Outer Rotor
Clearance
0.04 to 0.16 mm
0.3mm
0.0016 to 0.0063 in.
0.0118 in.
Outer Rotor to Pump Body
Clearance
0.100 to 0.184 mm
0.3mm
0.0039 to 0.0072 in. 0.0118 in.
Rotor to Cover
Clearance
0.025 to 0.075 mm 0.225 mm
0.0010 to 0.0030 in. 0.0089 in.
Relief Valve
Working Pressure
885 kPa
9.04 kgf/cm2
-
129 psi
ELECTRICAL SYSTEM
Item
Factory Specificatioil
Allowable Limit
Commutator
0.0. 32 mm
31.4 mm
1.2598 in.
1.2362 in.
Mica
Undercut
0.5mm
0.2mm
0.0197 in.
0.0079 in.
Brush (Starter)
Length 18 mm
11 mm
0.7086 in.
0.4331 in.
Alternator
No-load Voltage
14
Vat 4000 min-I (rpm) -
Rotor Coil
Resistance 2.8 to 3.3 Q
-
Slip Ring
0.0. 22.7 mm
22.1 mm
0.894 in.
0.870 in.
Brush (Alternator)
Length 18.5 mm
5.0mm
0.728 in.
0.197 in.
Glow Plug
Resistance Approx.
1.0 Q
-
..-v- WESTERBEKE
Engines & Generators
60