| Clearance | Drive belt tension | 0.28 to 0.35 in. (7 to 9 mm) | in. | with about 22 lbs. (10 kg) of force |
| Clearance | Slip ring maximum size after turning | 2.391 | inches | |
| Clearance | Slip ring minimum size after turning | 2.360 | inches | |
| Gap | Belt tension (deflection) | 0.28 to 0.35 | in (7 to 9 mm) at 22 lbs (10 kg) | |
| Gap | Spark plug gap | 0.039 | in. (1.0 mm) | |
| Other | Angular operation (max.) | 20 continuous / 30 for 10 minutes or less | degrees | in all directions |
| Other | Battery specific gravity charge if below | 1.215 | specific gravity | at 80 deg F (26.7 deg C) |
| Other | Battery specific gravity fully charged | 1.260 | specific gravity | at 80 deg F (26.7 deg C) |
| Other | Carburetor idle mixture screw initial setting | 1-3/4 turns out | | |
| Other | Controller fuse | 10 | Amp | |
| Other | Frequency regulation | +5 | % | |
| Other | Fuel solenoid 'hold' current | 0.8 | amps | |
| Other | Fuel solenoid 'pull' current | 31 | amps | |
| Other | Fuel solenoid hold current | 0.8 | amps | |
| Other | Fuel solenoid pull current | 31 | amps | momentary |
| Other | Governor throttle rod length | 3-7/8 | in. (98 mm) | |
| Other | Maximum fuel/water separator centerbolt torque | 65 | inch pounds | |
| Other | Slip ring surface finish | 64 | micro-inch | |
| Other | Specific gravity cell difference max | 0.01 | specific gravity | |
| Other | Time delay before fault shutdown | approx. 5 | seconds | |
| Other | Voltage regulator fuse | 10 | Amp | CC/4-lead models only |
| Pressure | Coolant fill pressure cap | 13 | psi (89 kPa) | |
| Pressure | Coolant pressure cap | 13 psi (88 kPa) | psi | |
| Pressure | Engine oil pressure | 21.7 | psi (150 kPa) | |
| Pressure | Engine oil pressure (normal operating range) | 36-50 | psi (248-345 kPa) | |
| Pressure | Fuel injection pressure | 1991-2133 | psi (140-150 kgf/cm2) | |
| Pressure | LP gas leak test pressure | 6-8 ounces (10-14 inches water column) | | |
| Pressure | Low oil pressure (LOP) shutdown switch | 7 | psi (48.3 kPa) | contacts close at approx. |
| Pressure | Low oil pressure shutdown | 15 | psi (103 kPa) | |
| Pressure | Low oil pressure shutdown switch | 7 psi (48.3 kPa) | psi | Shutdown setpoint |
| Pressure | Natural gas fuel pressure | at least 5 | in. water column | |
| Pressure | Radiator pressure cap | 20-24 | psi (138-165 kPa) | |
| Resistance | Exciter armature resistance | approx. 0.71 | ohms | |
| Resistance | Exciter field resistance | approx. 5 | ohms | cold |
| Resistance | Fuel solenoid plunger 'hold' resistance | 14.94 | ohms | |
| Resistance | Fuel solenoid plunger 'pull' resistance | 0.387 | ohms | |
| Resistance | Fuel solenoid plunger hold resistance | 14.94 | ohms | solenoid disconnected from harness |
| Resistance | Fuel solenoid plunger pull resistance | 0.387 | ohms | solenoid disconnected from harness |
| Resistance | Glow plug relay (C1) | 16-20 | ohms | at 80 F (27 C) |
| Resistance | Glow plug relay (C1) | approx. 16-20 | ohms | at 80F (27C) |
| Resistance | K1 relay coil | approx. 160 | ohms | controller circuit board E-239563 |
| Resistance | K2 relay coil | approx. 160 | ohms | controller circuit board E-239563 |
| Resistance | K20 relay coil | 85 | ohms | |
| Resistance | K20 relay coil (P1-4 and P1-9) | 85 | ohms | |
| Resistance | K25 relay coil | 85 | ohms | |
| Resistance | K25 relay coil (P1-8 and P1-9) | 85 | ohms | |
| Resistance | K3 relay coil | approx. 400 | ohms | controller circuit board E-239563 |
| Resistance | K4 relay coil | approx. 125 | ohms | controller circuit board E-239563 |
| Resistance | K5 relay coil | approx. 510 | ohms | controller circuit board E-239563 |
| Resistance | Main field resistance | 2.5-4.5 | ohms | cold |
| Resistance | Oil pressure sender (VDO 2/4-meter panel) | 227-257 / 138-162 / 92-114 / 50-80 / 21-50 | ohms at 0/25/50/75/100 PSI | |
| Resistance | Oil pressure sender at 0 psi/kPa | 227-257 | ohms | |
| Resistance | Oil pressure sender at 100 psi (690 kPa) | 21-50 | ohms | |
| Resistance | Oil pressure sender at 25 psi (172 kPa) | 138-162 | ohms | |
| Resistance | Oil pressure sender at 50 psi (345 kPa) | 92-114 | ohms | |
| Resistance | Oil pressure sender at 75 psi (517 kPa) | 50-80 | ohms | |
| Resistance | Rotor resistance | 4.7 | ohms | Example used in separate excitation calculation |
| Resistance | Rotor resistance (cold) | 3.9 | ohms | room temperature approx. 70F (21C) |
| Resistance | Rotor resistance (cold) | 4.3 | ohms | room temperature approx. 70F (21C) |
| Resistance | Rotor resistance 10/12CZ | 3.5 | ohms | |