Posted by RandyM on January 30, 2009 at 19:44:24 from (72.230.156.224):
My 230 developed low oil pressure (started @ 30# then dropped to 10#) and was leaking oil around the filter case.
I followed the advice in this forum and rebuilt the oil pump: trued the bottom cover, cleaned the screen, new gaskets, new pressure spring, and new pressure valve. At the same time, I put in a new oil filter and a new gasket. Cleaned the case seat, and verified that there were no plugged holes in the retaining bolt. Pressure gauge is good (it was checked with a new gauge I just bought for my 100)
Put it back together, pressure was back between 30#-40# and stable. It has been fine the few times I used it since the pump work was done back in December.
After plowing snow earlier this week I noted oil on the floor when I parked it. I found oil at the base of the filter case, some at the top of the retaining bolt, more sprayed on the engine in that area, and the pressure was down to 10#.
The tractor showed no smoke or issues other than a "skip" a couple of times near the end of the night that appeared to correspond with dimming lights (lights off and no skip) so I think that is electrical and something beyond the oil issue.
Engine was rebuilt by my father a few years back and the tractor has had relatively few hours since - generally some occasional brush hog work and snow plowing and it has not been worked hard.
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