Why did these older motors not have an oil filter?
 

Always wondered. Why a transmission but not an engine oil filter? Got me to thinking about it today while changing the oil. I've been changing the trans filter every year of late - probably wouldn't need to since the tractor runs way less than 50 hours a year.

I do not know the engine you are referring to but I assume it is one with no oil pump. No pump means no filter.

My push mower has no filter , splash feed works pretty well so long as you do not mow at an acute angles and change the oil regularly using a good quality oil
B&S motor
Oz

My Cub Cadet 129 - Kohler 301 engine

A simple splash system, thus no pump no filter.

If you can find a K330 or K331, they have an oil pump, but alas no filter.

It is probably overkill but on my K301s I change the oil a couple times
at least through the summer. Probably amounts to every 10-15 hours.
I figure it is a pretty cheap filter system. Just drain and fill.

Ken

Same with some KT17 and maybe even M18 applications.

Thanks for the replies! Have a good Sunday everyone.

my 1225 from 1992 has no filter either.