The Ford Barn

RalphG · 07-28-2016, 11:25 PM

On the 52 Mercury. I finally got the JD corn head grease for the steering box. Got that done and now I"m wondering, if the grease works so well in a steering box, why not in a differential? I know this one needs work as the oil leaks out around the input shaft whenever I fill it up. Hoping to look into it this winter during the off season when I can see what all it needs. Hopefully a bearing and seal will do it. But in the meantime, just for a few short trips maybe the JD corn head grease would work well in the diff?

Lawrie · 07-28-2016, 11:42 PM

Look at the J/D website ,it says the corned grease is only suitable for up to 1000rpm I think.
Lawrie

Talkwrench · 07-29-2016, 01:05 AM

Don't even think about it ..

Kurt in NJ · 07-29-2016, 05:11 AM

Sometimes cleaning the vent can slow or stop a pinion seal leak

RalphG · 07-29-2016, 08:54 AM

Quote:

Originally Posted by Talkwrench

Don't even think about it ..

I'll tell you why I am thinking about it. Years ago I had a gear box on a rotary mower that leaked 85-90 gear oil out the bottom seal. I pumped ordinary gun grease into the gear box, added some gear oil to that and the mower has run fine for years. Oil stopped leaking too.
I'm not looking at this idea as a long term solution to the Merc differential leak but thought for short term til I get time to do a real fix that grease might work.
Not sure what I will find when I open this differential up but it has a real howl on deceleration.

19Fordy · 07-29-2016, 08:57 AM

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Ralph, Forget putting the corn head grease in you diff.
It's not meant for heat and high RPMs.
You'll end up doing more damage.

JSeery · 07-29-2016, 08:58 AM

This is not even close to a good idea. I would fix the leak or learn to live with the leak until you can fix it. If you are wanting something thicker you might try STP?

07-28-2016, 11:25 PM	#1
RalphG Senior Member Join Date: Sep 2014 Location: Sask. Canada Posts: 2,424	Grease In Differential On the 52 Mercury. I finally got the JD corn head grease for the steering box. Got that done and now I"m wondering, if the grease works so well in a steering box, why not in a differential? I know this one needs work as the oil leaks out around the input shaft whenever I fill it up. Hoping to look into it this winter during the off season when I can see what all it needs. Hopefully a bearing and seal will do it. But in the meantime, just for a few short trips maybe the JD corn head grease would work well in the diff? __________________ https://www.youtube.com/user/roosty6/videos

07-28-2016, 11:42 PM	#2
Lawrie Senior Member Join Date: May 2010 Location: Qld, Australia Posts: 4,225	Re: Grease In Differential Look at the J/D website ,it says the corned grease is only suitable for up to 1000rpm I think. Lawrie

07-29-2016, 01:05 AM	#3
Talkwrench Senior Member Join Date: Aug 2012 Location: Perth, Western Australia Posts: 2,687	Re: Grease In Differential Don't even think about it .. __________________ *"Came too close to dying to stop living now!"*

07-29-2016, 05:11 AM	#4
Kurt in NJ Senior Member Join Date: May 2010 Location: on the Littlefield Posts: 6,159	Re: Grease In Differential Sometimes cleaning the vent can slow or stop a pinion seal leak

07-29-2016, 08:57 AM	#6
19Fordy Senior Member Join Date: May 2010 Location: Coral Springs FL Posts: 10,969	Re: Grease In Differential Sponsored Links (Register now to hide all advertisements) Ralph, Forget putting the corn head grease in you diff. It's not meant for heat and high RPMs. You'll end up doing more damage.

07-29-2016, 08:58 AM	#7
JSeery Member Emeritus Join Date: Nov 2012 Location: Wichita KS Posts: 16,132	Re: Grease In Differential This is not even close to a good idea. I would fix the leak or learn to live with the leak until you can fix it. If you are wanting something thicker you might try STP?