100 – Necessity for Cleaning Indian 4 Oil Filter Screen and Crankcase

NECESSITY FOR CLEANING INDIAN 4 OIL
FILTER SCREEN AND CRANKCASE

To eliminate the possibility of burning out a bearing and oil pressure on Indian 4 models from falling off at high speeds, it is advisable to THOROUGHLY clean the crankcase and oil filter screen.

1. Drain crankcase
2. Hold pressure spray gun at crankcase drain hole and spray thoroughly. (Either gasoline or kerosene may be used in pressure gun).
3. Put one quart gasoline into engine thru oil filler cap and allow gasoline to drain. (Leave plug off long enough for gasoline in base to evaporate. (air gun will help dry up gas). DO NOT RUN MOTOR.

This will clear out all residue from the oil filter screen and allow oil to flow freely, thus eliminating falling off of oil pressure at the gauge at high speeds.

If screen is not kept clean, bearing wear will result – and may lead to completely burning out connecting rod
bearings.

INDIAN MOTOCYCLE COMPANY
Erle Armstrong
SERVICE ENGINEER