Oil Overflow Problem

[Mick in MI]

My father-in-law has a 1980 White 2-30 w/an Iseki engine. When under a load oil flows out of the oil filler/breather cap on the rocker cover. With the rocker cover off, and turning the engine over, oil is flowing out of one of the rocker shaft bushings. I think under normal operation, this oil from the bushing is flowing faster than it can drain back into the pan, and, under load it builds up within the rocker cover and has nowhere to go but out the breather cap. Am I on the right track? Is this bushing bad?

 

[lens12]

Sounds like it.

 

[alanlashway]

I am having the same problem with the oil coming out of the breather cap. Did you find the answer to your problem?

 

[jmerker]

MY TU180f that I just sold is having the same issue and I informed the new owner to check the hydraulic fluid. It had gone low and he thought the oil overflowing was indeed hydraulic fluid as the crankcase was now making oil. There must be a shaft seal from the hydraulic pump that is allowing fluid to bypass into the engine. Anyone have information on this??