Generac 86640 - Manual (Page 105)

Table 11.1- Nominal Resistances of AC Generator Windings
MODEL
ROTOR
RESISTANCE
STATOR RESISTANCE
POWER WINDING DPE WINDING
NP80G 8.8 ohms 0.21/0.21 ohm 1.00 ohm
NP100G 8.5 ohms 0.14/0.14 ohm 0.73 ohm
IM80G 8.8 ohms 0.21/0.21 ohm 1.00 ohm
IM100G 8.5 ohms 0.14/0.14 ohm 0.73 ohm
Table 11.2- General Engine Specifica­
tions
Engine Displacement.................1.2 liters (73 In.®)
Type of Cooling..........................Water-Cooled
No. of Cylinders......................... 4, In-Line
Bore........................................... 2.8 inches (71mm)
Stroke.........................................3.07 inches (78mm)
Compression Ratio.................... 9 to 1
No. of Main Bearings ................ 5
Brake Mean Effective Pressure
(B.M.E.P.) ................................. 77
Table 11.3- Tightening Torques for En­
gine Bolts
Intake & Exhaust Manifold
Nuts..........................................12-15ft-lbs(16-21 N-m)
Spark Plugs .............................18-22 ft-lbs (25-29 N-m)
Water Pump Bolt...................... 2.9-3.6 ft-lbs (4-5 N-m)
Crankshaft Pulley Bolt .............61-69 ft-lbs (83-93 N-m)
Thermostat Housing Bolt ... 2.0-3.6 ft-lbs (4-5 N-m)
Oil Pressure Switch..................9.0-12.7 ft-lbs (13-17 N-m)
Camshaft Pulley Bolt................6.5-8.7 ft-lbs (9-12 N-m)
Connecting Rod Nut................. 22-25 ft-lbs (29-34 N-m)
Cylinder Head Bolts ................ See Page 2.1-1
Cylinder Head Front Cover .. 2.9-3.6 ft-lbs (4-5 N-m)
Flywheel Bolts..........................43-51 ft-lbs (59-69 N-m)
Drive Plate Bolt ....................... 51-58 ft-lbs (69-78 N-m)
Main Bearing Cap Bolts*.... 34-38 ft-lbs (46-52 N-m)
Oil Pan Bolt.............................. 2.9-3.6 ft-lbs (4-5 N-m)
Oil Pan Drain Plug................... 26-35 ft-lbs (35-47 N-m)
Rocker Shaft Bolt..................... 13-15 ft-lbs (18-21 N-m)
Tensioner Lock Nut.................. 11-12 ft-lbs (15-17 N-m)
Rocker Cover Nut ................... 2.2-3.6 ft-lbs (3-5 N-m)
Rocker Arm Lock Nut...............8-11 ft-lbs (11-15 N-m)
ON Pump Idler Gear Bolt . . . . 4.3-5.1 ft-lbs (6-7 N-m)
Oil Pump Securing Bolt _____ 12-16 ft-lbs (16-22 N-m)
Water Pump Securing Bolt .. 2.9-3.6 ft-lbs (4-5 N-m)
Water Outlet Securing B o l t . . 3.6-5.8 ft-lbs (5-8 N-m)
* Tighten or loosen main bearing cap bolts in 3 stages.
Page 11-1