Where do I start?

[texican]

I brought my tractor home from 4 counties over where I keep it, for maintenance and to fix anything that needs fixin while Ive got here at the house wiht all my tools..and electricity.

Im getting blades for the old M&W pC515 and thought I would tackle this gear oil seepage. Looking for what do do first and also what not to do enroute to fixin this.

 

[NCL4701]

When older gear boxes on brush hogs get a bit leaky, replacing the gear oil with corn head grease is an option I’ve known many people to use. First heard the idea from a guy that ran a fleet of a bit over a hundred tractors mowing highway right of ways.

It’s what I did with my old Howse 500 about five years ago. I put a zerk in the fill plug and put a full tube of corn head grease it. The grease is green and the Howse is a dirty, worn red similar to your M&W so it wouldn’t be hard to see a leak. No more leaking.

Robot or human?

I’m aware some may vehemently disagree with anything less than restoring everything to original specs with original parts. As always, YMMV…

Edit: Corn head grease is available from many retailers. The above was just an example, but the grease itself is pretty specific.

 

[D2Cat]

I needed some corn head grease last summer. Least expensive place I found was the local Case dealer, just a bit over $5 a tube. John Deere "00" corn head was $15+. Put it in my 5'tiller.

 

[Russell King]

I assume that is seepage from a plugged hole. I assume that plugged hole is NPT thread that isn’t the best sealing thread without being really tight or having some sealant applied to the threads.
I assume no one has cleaned the threads of the hole or the plug for a long time.

I would start with making sure those are NPT threads. If they are then you can buy a new plug so you know the threads are as good as you can get. While buying the plug also buy some pipe dope of good quality. Buy some type of cleaner, I would use spray brake cleaner but you may have some other stuff you like to remove oil with. Clean the threads in the hole, apply the thread sealant to the plug and install the plug and tighten it properly.

I would do the clean up before you add new oil and not install the plug until after you fill the gearbox with the new oil.