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INDIAN INSTRUCTION BOOK TWELFTH REVISION

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Figure 3

2. Remove cap nut A (Fig. 3), from oil pressure adjustment device (this will be found at base of feed line leading to oil pressure gauge on light side of crankcase).

3. Loosen lock nut B (Fig. 3) and turn screw C "in", or (clockwise) to increase pressure and "out", or anti-clockwise, to decrease pressure.

This screw should be turned only a trifle at a time, after which the oil pressure should be inspected on gauge. It should show a very slight pressure with motor thoroughly warmed up, and idling slowly. Also, when the oil pressure is correctly adjusted the gauge should register from 35 to 50 pounds pressure when the motorcycle is being driven at speeds from 35 to 50 miles per hour.

WARNING!

If oil pressure appears low, find the cause before setting up pressure adjustment, or over-oiling will result.

After the machine has been run many thousands of miles it is inevitable that a certain amount of wear will take place throughout the motor, including the bearings. Also, if the motor is at any time abused by being run with insufficient lubrication, wear in the bearings will result.

This wear is bound to allow the oil to be forced thru the bearings more easily, with the result that the pressure gauge will show a drop off in oil pressure. Don't make the mistake of increasing the oil pressure by adjustment——until you know why the pressure is low. An increase in pressure where the bearings are worn, will only mean more oil forced through the bearings, with a resultant over-oiling. Needless to say an excess of oil will cause a multitude of petty troubles, including heavy carbon formation in the cylinders.