Corn Head grease in gearbox

[Aggie66]

I’ve repaired the gearbox drive failed bearings on my 80 inch tiller and will be replacing the 90 weight gear oil with corn head grease as has been recommended and that’s what I’m going to do. I have two tubes of John Deere corn head grease to fill the gearbox. I’m looking for a suggestions on how much to put into the gearbox, should some 90 weight oil be added as well, and the best suggested method of getting the grease into the gearbox through the oil fill hole. I could figure it out on my own, but I know someone has already done it and has a Good method of putting the grease in and how much. Thanks for the help.

 

[paulsharvey]

I’ve repaired the gearbox drive failed bearings on my 80 inch tiller and will be replacing the 90 weight gear oil with corn head grease as has been recommended and that’s what I’m going to do. I have two tubes of John Deere corn head grease to fill the gearbox. I’m looking for a suggestions on how much to put into the gearbox, should some 90 weight oil be added as well, and the best suggested method of getting the grease into the gearbox through the oil fill hole. I could figure it out on my own, but I know someone has already done it and has a Good method of putting the grease in and how much. Thanks for the help.

Assuming its the same product as pourable cotton picker grease/spindle grease, dont mix or cut it with gear oil. Fill to the fill point, and call it good.

 

[workinonit]

I tried to post a response to your question but got censored so I deleted the post. No idea what the trigger was.

 

[Xfaxman]

and the best suggested method of getting the grease into the gearbox through the oil fill hole. I could figure it out on my own, but I know someone has already done it and has a Good method of putting the grease in and how much. Thanks for the help.

I removed the coupler from my grease gun and pumped it into the gear box.

 

[Xfaxman]

I tried to post a response to your question but got censored so I deleted the post. No idea what the trigger was.

Did it contain "Grease G-u-n?

I just posted one that is waiting approval.

 

[GrandpaSmurf825]

Fill it the same as you would if you were filling it with regular gear lube or slightly over. Corn head grease when warm is like a thick gear lube. Did the gear box fail because the bearings ran dry? Just curious. Corn head grease is rated as a NLGI "0" where most will be a NLGI "2". The corn head grease will eventually run out of the tube if laid on it's side.

 

[bigtiller]

I think the volume of 90 wt. oil and cornhead grease are close enough to each other, to figure a 14 oz. tube of grease would be equal to about 1 pint of 90 wt oil.

 

[MapleLeafFarmer]

you could put it into a heatable container, heat gently to over 150f then pour it through a funnel.

 

[sandman2234]

Tractor Supply sells a suitable grease for a brush hog gearbox, and funny thing, it isn't stored where all the other grease is at. It is stored back where the pins, shafts, and clips are stored in the back of the store for 3pt stuff.
They called it something else, but has "00" on the bottle.
David from jax

 

[Seven Gables]

Tractor Supply sells a suitable grease for a brush hog gearbox, and funny thing, it isn't stored where all the other grease is at. It is stored back where the pins, shafts, and clips are stored in the back of the store for 3pt stuff.
They called it something else, but has "00" on the bottle.
David from jax

Yep TSC calls it cotton picker grease and it’s 00 viscosity so just a little thinner than the 0 corn head grease. The tsc stuff comes in a quart bottle that you can squeeze in

 

[paulsharvey]

Yep TSC calls it cotton picker grease and it’s 00 viscosity so just a little thinner than the 0 corn head grease. The tsc stuff comes in a quart bottle that you can squeeze in

It pours like honey from the fridge, but it does pour. That tells me you dont end up with grease slung off the gears to the case, and they stay happily submerged in a lube.

 

[Aggie66]

Fill it the same as you would if you were filling it with regular gear lube or slightly over. Corn head grease when warm is like a thick gear lube. Did the gear box fail because the bearings ran dry? Just curious. Corn head grease is rated as a NLGI "0" where most will be a NLGI "2". The corn head grease will eventually run out of the tube if laid on it's side.

Unfortunately, I purchased this tiller used and my desire to own the tiller overcame better judgment in that there were problems. When I checked the tiller gearbox, it had no oil in it and it showed evidence of leaking. the final drive gear system showed signs of leaking and it was also dry, but I attributed it to seals leaking and something that I could fix, which was true on both areas. I replaced the seal on the final drive system and all the gears were in good shape no issues at all and long story short. I replaced the seal on the gearbox, but there were still issues when I would engage the PTO so I remove the back cover from the gearbox and ball bearings fell out and there was evidence that it had been run a lengthy time with those ball bearings and the bearing failure. I’m going to make a document on how I did the repair because I searched the Internet, YouTube And this forum and could find no one that had actually done this job before and so I’m going to try to help someone in the future with at least how I did it. But the bearings in the gearbox both the inboard and outboard bearings were failed due to the previous owner Running it unlubricated So I should wind up with a good 80 inch tiller, which was what I wanted after I fill the gearbox with this corn head grease and give it a try. Thanks to everyone for your suggestions and comments. I really enjoy this forum because everyone is helpful so I’m gonna try to Provide some input on my repair experience for others.

 

[sixdogs]

Corn head grease is the secret fix for gearboxes that leak. Old tractors and old car gearboxes are mostly where I used it. Warm helps a lot, pour or pump in to the normal fill line and most of it will stay where it's supposed to. I would have no problem adding to any gearbox that leaked.

No need to mix but in one old truck gearbox I mixed 50/50 with lithium grease and no issues.

 

[lman]

Unfortunately, I purchased this tiller used and my desire to own the tiller overcame better judgment in that there were problems. When I checked the tiller gearbox, it had no oil in it and it showed evidence of leaking. the final drive gear system showed signs of leaking and it was also dry, but I attributed it to seals leaking and something that I could fix, which was true on both areas. I replaced the seal on the final drive system and all the gears were in good shape no issues at all and long story short. I replaced the seal on the gearbox, but there were still issues when I would engage the PTO so I remove the back cover from the gearbox and ball bearings fell out and there was evidence that it had been run a lengthy time with those ball bearings and the bearing failure. I’m going to make a document on how I did the repair because I searched the Internet, YouTube And this forum and could find no one that had actually done this job before and so I’m going to try to help someone in the future with at least how I did it. But the bearings in the gearbox both the inboard and outboard bearings were failed due to the previous owner Running it unlubricated So I should wind up with a good 80 inch tiller, which was what I wanted after I fill the gearbox with this corn head grease and give it a try. Thanks to everyone for your suggestions and comments. I really enjoy this forum because everyone is helpful so I’m gonna try to Provide some input on my repair experience for others.

So, do you think it would still leak after replacing the seals if you used gear oil or do you think Corn Head grease is a better lubricant.
I had some seals leaking on a rear finish mower so I replaced the seals about 10 years ago but I put the manufacture's recommended gear oil in the gearboxes. No leaks yet.

 

[Aggie66]

Fill it the same as you would if you were filling it with regular gear lube or slightly over. Corn head grease when warm is like a thick gear lube. Did the gear box fail because the bearings ran dry? Just curious. Corn head grease is rated as a NLGI "0" where most will be a NLGI "2". The corn head grease will eventually run out of the tube if laid on it's side.

I purchased The tiller used and the box was failed. I have another thread with details and my repairs

 

[Aggie66]

So, do you think it would still leak after replacing the seals if you used gear oil or do you think Corn Head grease is a better lubricant.
I had some seals leaking on a rear finish mower so I replaced the seals about 10 years ago but I put the manufacture's recommended gear oil in the gearboxes. No leaks yet.

I probably could have just went with gear oil since I put new seals but there were so many positives on corn head grease I went with the recommendations