Low oil pressure on 4-152, 196, V-266, 304 and 345 International engines could be caused by the use of oil filter base gasket, International part # 860 363-R4 on early crankcases in the above listed engines.

To eliminate this condition, the 1/4" oil return hole in the crankcase filter mounting pad must be sealed off.

Plug the 1/4" oil return hole as follows:

a. Tap 1/4" hole using a 5/16" N. C. tap to accept a plug. This 1/4" hole is a return drain to the oil pan. Cuttings made in tapping can be controlled and do not enter oiling system of the engine.

b. Make a plug by cutting off the end of a 5 16" N. C. cap screw 1/4" long.

c. Saw a slot across the end of the plug so it can be screwed into the crankcase with a screwdriver to have a flush or slightly below flush installation.

d. Do not tap the hole too deep, as the plug must be a tight fit when in place.

e. A sealer on the threads should be used when the plug is installed. Also, center punch the plug to lock it in place, as it will never need to be removed.

(P54)