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Engine Description - Oil Pressure Indicator

Fig. 15

There are two electrical sending units shown in the diagram. The vertical one is the pressure sender and the horizontal one behind it is the temperature sender. It is not uncommon for these to fail and to leak oil.

A pressure-actuated switch is connected to the pressure gallery between the pump and oil cooler. The switch opens the electric circuit of the oil pressure indicator lamp at a pressure between 0.3 and 0. 6 aim (4. 5 - 8. 8 psi), causing the lamp to go out. The lamp glows when the ignition is turned on and the oil pressure is low.
Last modified: Mon, 17 Jan 2005


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