3.16
ENGINE
COOLING SYSTEM
Cooling System Specifications (Non-EFI)
THERMISTOR READING DURING OPERATION
Cooling System Layout and Testing
System Pressure Test
1. Remove front cover.
2. Remove recovery bottle hose from coolant filler.
3. Connect a Mity Vac™ (PN 2870975) to radiator and
pressurize system to 10 PSI. The system must retain 10 lbs
of pressure for five minutes or longer. If pressure loss is
evident within five minutes, check radiator, all cooling
system hoses and clamps, or water pump seal.
Radiator Cap Pressure Test
1. Remove radiator cap and test using a cap tester
(commercially available).
2. The radiator cap relief pressure is 13 lbs.
Condition
Approx. Reading
(Ohms)
Temperature
Hot Light On 185Ω ± 3% 215° F (102° C)
Fan On (Temp + 245Ω ± 3% 195° F (91° C)
Fan Off (Temp -) 307Ω ± 3% 180° F (82° C)
Room Temperature 2000Ω ± 3% 77° F (25° C)
Thermostat
Starts opening 176° F (80° C)
Open 8mm @ 205° F (96° C)
System Capacity 2.25 Quarts (2.13L)
Radiator Cap Relief
Pressure
13 PSI
Thermistor
26 +
2.1 ft. lbs.
(35 +
3 Nm)
WARNING
Never remove radiator cap when engine is
warm or hot. The cooling system is under
pressure and serious burns may result.
Allow the engine and cooling system to
cool before servicing.
Radiator
Water Pump
Cylinder
Thermostat
FLOW
Cylinder
Head
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