Posted by jon f mn on June 29, 2022 at 12:00:38 from (174.199.32.110):
Since I got the Kubota in and running I've been having another oil leak problem. This one, like the other, has been a real problem. The oil gets on the belts and gets sprayed everywhere so tracing it down has been impossible. At first I thought I had messed up the front engine seal and it was getting thrown off the pulley. So I pulled the engine and put in a new seal. But that wasn't it. So I pulled the engine again to look for the leak. I just couldn't find anything that looked like it was leaking. Spent hours looking and cleaning trying to trace down the source. Finally I called a friend to help so one could drive and the other look. We started by taling the engine out and hooking up the engine and running it, but didn't see any leaks after 15 minutes. So we put it back in and ran all the controls trying to find the leak. At that point we could see it was hitting the front of the engine, but not where it came from. So out with the engine again. We couldn't even separate e gine oil from hydraulic system oil because the hydraulics uses engine oil. So no way to tell the difference there. And a very thorough inspection yielded not hydraulic leaks. So we hooked up the engine and started it again. FINALLY, I was able to spot the leak, it was coming out of the hole with the green bolt in it.
There was no bolt in that hole at any time that I have had the engine. The reason it didn't leak on the earlier tries at running the engine is because it's fairly small and deep and not under pressure, it's just in the timing cover. So when the engine was cold the oil was too thick to come out, but once the oil was hot and thin it would splash out. And right on the fan belt so it got thrown all over. Put that bolt in and problem solved. Sure has been a frustrating project so far. I just hope that's the last of the issues now. I do believe that the hydraulic issues I was having are more related to the belts slipping from being oil soaked and not from actual hydraulic issues. That would be nice.
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