5.40
ENGINE
Torque Specifications
When tightening bolts, nuts, or screws, a torque pattern may need to be followed to ensure uniform equal tension is applied to all
fasteners. Proper torque application prevents fasteners from loosening or breaking in critical service. It also minimizes wear and
eliminates premature or needless repair costs. Following uniform torque application sequence patterns ensures optimum
performance from precision machined, close tolerance assemblies.
The most common units of torque in the English system are ft-lb (foot pounds) and in-lb (inch pounds). In the Metric system,
torque is commonly expressed in units of N-m (Newton Meter).
1 =Apply Loctite 242 to threads of bolt.
2= Apply Pipe sealant to threads.
3= See torque sequence.
ENGINE 600/700 CFI
SPARK PLUG 18 ft-lb (24 N-m)
CYLINDER HEAD 22ft-lb (30 N-m)1,3
BLEEDER SCREW 70 in-lb (8 N-m)
THERMOSTAT HOUSING 9 ft-lb (12 N-m)
WATER TEMPERATURE SENSOR 18-40ft-lb (24-54 N-m)2
WATER INLET PIPE 75ft-lb (102 N-m)2
DETIONATION SENSOR 168 in-lb(19 N-m)
CYLINDER BASE NUTS 32 ft-lb (43 N-m)3
EXHAUST VALVE COVER BOLTS 12 ft-lb (16 N-m)
EXHAUST VALVE NUT 144 in-lb (16 N-m)1
EXHAUST MANIFOLD BOLTS 22 ft-lb (30 N-m)
CARB ADAPTER BOLTS 108 in-lb (12 N-m)
OIL PUMP MOUNTING BOLTS 7 ft-lb (9 N-m)
CRANCASE PLUGS 10ft-lb (14 N-m)2
WATER PUMP IMPELLER NUT 120 in-lb (14 N-m)
WATER PUMP COVER BOLTS 108 in-lb (12 N-m)
CRANKCASE 6mm 9ft-lb (12 N-m)1,3
CRANKCASE 8mm 22ft-lb (30 N-m)1,3
ENGINE STRAP to CHASSIS NUT 18ft-lb (24 N-m)
ENGINE STRAP to ENGINE BOLT 45 ft-lb (61 N-m)
STATOR BOLTS 60 in-lb(7 N-m)1
TRIGGER COIL BOLTS 48 in-lb (5 N-m)
FLYWHEEL 90ft-lb (122 N-m)1
RECOIL CUP BOLTS 108 in-lb (12 N-m)
RECOIL COVER COLTS 108 in-lb (12 N-m)
DRIVE CLUTCH BOLT 50 ft-lb(68 N-m)
7/16” ENGINE MOUNT STRAP BOLTS 45 ft-lb (61 N-m)
REAR MOTOR MOUNTS BRACKET 29 ft-lb (39 N-m)
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