Wood Splitter valve leak

alderman · Dec 8, 2016

I have an MTD wood splitter that has a minor leak from the control valve.
At the moment it is just an occasional drip between the detention assembly and the main body.
The valve is made by Energy.
If I replace the o-ring is there any thing I need to do other than remove the detention assembly and replace the o-ring.
I've never worked on a hydraulic control valve and don't want to disassemble if there is a chance of parts flying out of it.

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Andyshine77 · Dec 9, 2016

It's really easy to replace the rings, have at it. It's been awhile, but I believe all you do is remove the caps and the shaft simply slides out.

mohick · Dec 12, 2016

Minor leak?? Hyd oil is cheap why screw with messing it up ??????????

alderman · Dec 12, 2016

mohick said:
Minor leak?? Hyd oil is cheap why screw with messing it up ??????????

I am thinking the same thing. Mostly asking in case it gets worse.

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Patrick62 · Dec 12, 2016

I had one that leaked a little for quite a few years. Eventually it got "sticky". I replaced the thing because taking them apart is sketchy due to problems with re-assembly. I have done it, but.... most of the time it gets real balky about the spool moving after that. The things are made to micron tolerances. The O ring is for keeping dirt out, not oil in! I would run it until it gets ridiculous...

Andyshine77 · Dec 12, 2016

Patrick62 said:
I had one that leaked a little for quite a few years. Eventually it got "sticky". I replaced the thing because taking them apart is sketchy due to problems with re-assembly. I have done it, but.... most of the time it gets real balky about the spool moving after that. The things are made to micron tolerances. The O ring is for keeping dirt out, not oil in! I would run it until it gets ridiculous...

In no way shape or form are these values manufactured with those types of tolerances, they would cost a fortune if the were. The tolerances if anything are a little sloppy and the finish is rough. Disassemble and reassembly is extremely simple, and worth the few minutes of effort IMHO. The one I rebuild is still working without any leaking ten years later.