Quote:
Originally Posted by jg61hawk
Two observations: The cotter pin hole is to leak it's not an overflow. Second and VERY important. These engines, like a small lawn mower motor, use SPLASH to move oil. Picture your hand in a pool just making a big circle about 6 inches into the pool then coming out about 6 inches and repeating. You are splashing water all over the place. Now don't change and picture the pool filling up slowly but your ability to rotate has not changed. Now your hand is under water, stirring the water not splashing anymore.
Overfilled splash systems do not lubricate.
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Remember there is a dipper tray that the rods rotate in. It only holds a given amount of oil. Anything else over flows down into the oil pan. The extra added oil is in the oil pan not the dipper tray.