740 L4-2.3L SOHC VIN 88 B230F (1985)
switch in the lower radiator hose.
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Thermostat
In order to increase the difference between the normal operating temperature of the engine and the engagement temperature for the 91~C electrical
cooling fan switch to avoid unneccessary engagement of the electrical cooling fan, a 87~C (189~F) thermostat should be installed after installation of
the 91~C (196~F) electrical cooling fan switch. The thermostat kit is available under P/N 273459-8.
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Expansion Tank Pressure Cap
For an increased safety margin before boiling and loss of coolant, a 150 kpa (21.8 Psi) pressure cap, grey, should be installed, P/N 1357390-2.
NOTE:
Ensure all hose clamps for the cooling system are tight and hoses are free of wear or damage.
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Water Pump Pulley
For increased cooling fan and water pump speed, which improves the cooling capacity, a smaller diameter water pump pulley is available under P/N
1378139-8.
The smaller water pump pulley requires a shorter drive belt P/N 968320-0.
NOTE:
The small diameter pump pulley was introduced during MY 1985
Claims may be submitted under the new car warranty
1.
Inspection Operation Number : 260033 Time Allowance : 0.3 Hr.
2.
Upgrading Operation Number : 260043 Time Allowance : 1.9 Hr.
Including time allowance for inspection.