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02-12-2016, 11:05 AM | #1 |
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u joint lube issues
What is the best practise for lubing the u joint? The one I installed, I soaked in 600 wt oil before putting in place, but there is no provisions for putting grease into the joint itself, other than pumping the u joint housing (ball) completely full of grease. Even then the shaft is spinning at times up to 2500 rpm,...you would think any grease would be thrown to the outside, away from the joint?
Dave |
02-12-2016, 11:20 AM | #2 |
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Re: u joint lube issues
That's the way it was designed...or you can fill it with 600w and enjoy the leaks..
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02-12-2016, 11:47 AM | #3 |
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Re: u joint lube issues
If the transmission bearings are original style then some oil will migrate into the clam shell and mix with the grease.
I just mix up some goop [ technical term] [ grease and oil] and pack the shell whenever working on the joint. Last edited by Patrick L.; 02-12-2016 at 03:42 PM. |
02-12-2016, 01:44 PM | #4 |
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Re: u joint lube issues
Pump some grease and gear oil in, it will mix up while driving.
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02-12-2016, 03:54 PM | #5 |
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Re: u joint lube issues
Fill that cavity! Get yourself a couple of tubes of John Deere CORNHEAD grease at a JD dealer. FILL that cavity FULL! It is a formulated, friggen'-magic, "low temp" type lube made for cavities with rotating parts. DO NOT use a HIGH temp grease like in the tube in the picture. Works great in leaky steering boxes, too. DD
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02-12-2016, 04:13 PM | #6 |
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Re: u joint lube issues
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02-12-2016, 05:17 PM | #7 |
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Re: u joint lube issues
I also use the John Deere corn head grease in my universal joint as well as the steering box.
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02-12-2016, 06:11 PM | #8 | |
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Re: u joint lube issues
Quote:
I've never had to replace parts I keep greased with this Mystik JT6 High Temp. |
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02-12-2016, 06:54 PM | #9 |
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Re: u joint lube issues
Any one know if there is a comparable grease is Mobil lubricants for example? The nearest JD dealer is 2 hrs away.
Dave |
02-12-2016, 07:26 PM | #10 | |
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Re: u joint lube issues
Quote:
Bob |
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02-12-2016, 07:34 PM | #11 |
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Re: u joint lube issues
I am going to use Mobil 1 synthetic as it has the same NLGI rating as the JD product.
Partley because I have some on hand. |
02-12-2016, 08:03 PM | #12 |
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Re: u joint lube issues
The corn head grease is NLGI grade 0 and it looks like Mobil is grade 2.
http://www.mobil.com/USA-English/Lub...ic_Grease.aspx Bob |
02-12-2016, 08:06 PM | #13 |
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Re: u joint lube issues
I understand the concept of filling the universal completely with the corn head grease.
Question, how do you know when the the universal cavity has been completely filled? I have heard that it is a full cartridge +. Thanks |
02-12-2016, 08:48 PM | #14 |
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Re: u joint lube issues
Remove the speedometer gear case and pump until it comes out there, then reinstall the gear drive.
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02-13-2016, 12:00 AM | #15 |
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Re: u joint lube issues
I have rpm chevron Artic grease in mine, same application.
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02-13-2016, 12:56 AM | #16 |
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Re: u joint lube issues
Awhile ago I ran into some Mobil One 240 weight at a Grainger retail outlet. I bought the quart and haven't used it yet. It's synthetic thick honey. My intention was steering boxes.
For the Model A u-joint cavity isn't there some drain holes on the sides or somewhere? Gary |
02-13-2016, 07:22 AM | #17 |
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Re: u joint lube issues
For the universal joint, Ford specified to use “universal joint” grease which was 600w oil thicken up with sodium tallow soap. Ford also stated that the universal grease was not as thick as wheel bearing grease.
The specification I found for Universal Grease in the November 1932 Ford Service Bulletin has a ASTM Worked Penetration of 310-330 which equates to NGLI 1 “tomato paste” grease. Regular wheel bearing grease is NGLI 2 "peanut butter". A lot of people use the John Deere "Corn head Grease" for the universal joint which is an NLGI grade is 0. This may leak out more than the thicker NLGI https://en.m.wikipedia.org/wiki/NLGI_consistency_number Ford specified to use 8 oz of grease in AA truck joints. Maybe soneone knows if the u-joint cavities are bigger on trucks? |
02-13-2016, 09:52 AM | #18 |
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Re: u joint lube issues
To Tom - Isn't the speedometer gear casing located on the torque tube? That is a large volume to fill up? Does that take more that one tube of great to fill the entire volume?
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02-13-2016, 02:07 PM | #19 |
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Re: u joint lube issues
Just a heads up for you guys that bought their A used (like me). Mine was an older restoration that.....appeared to be done somewhat professionly. When I was servicing, oil and lube I would give the grease fitting on the u joint housing a couple of pumps.
When it came time to take things apart, I found the u joint had been running without any lube.....and it did not like it. Long story, but if you haven't had the joint removed make sure you pump the housing full of grease. |
02-13-2016, 04:21 PM | #20 |
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Re: u joint lube issues
I only did that on the first time to make sure the U joint was full. After that I gave the U joint a few pumps of grease with each lube job on the car. I'm also running a stock tranny with oil shields that allow some tranny oil into the joint.
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02-13-2016, 06:01 PM | #21 | |
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Re: u joint lube issues
Quote:
Find the John Deere video on-line which shows how the Cornhead grease is formulated to work correctly in a situation like this, as well as in steering gear boxes. DD |
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08-14-2016, 11:22 PM | #22 |
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Re: u joint lube issues
I have pumped in a 14 oz cartridge of grease but none is coming out of the speedometer housing opening . Is it possible to over fill and push grease down the torque tube ?
Last edited by Lowell Fast; 08-16-2016 at 10:36 PM. Reason: grammar |
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08-14-2016, 11:27 PM | #23 |
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Re: u joint lube issues
If the seal is bad, yes. The U-joint usually gets lube from the transmission
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08-15-2016, 03:57 AM | #24 |
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Re: u joint lube issues
I have pumped in a 14 oz cartridge of grease but none is coming out of the speedometer housing opening . Is it possible to over fill and push down the torque tube ?
If the cavity was empty, it could take more than one tube to fill it up. The only way to verify the seal is to remove the torque tube - Or you could just pump in another tube and see what happens. I would try option 2.
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08-15-2016, 05:26 AM | #25 |
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Re: u joint lube issues
Ford specified 8oz in Model AA trucks. You may have back filled your transmission. Pull your transmission top off and check.
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08-15-2016, 08:04 AM | #26 |
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Re: u joint lube issues
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Tried to get cornhead grease here and needed to buy a case. Don't know about Arctic grease. Seems unlikely. A video of the supposed differences between NLGI 0 and 2. https://www.youtube.com/watch?v=CL_4T9YJInA And Penrites brochure on greases is interesting for all sorts of things: https://www.penriteoil.com.au/POS/Grease_brochure.pdf Some constant velocity grease is supposed to be NLGI 1, (like the Arctic stuff). http://www.crcindustries.com/ei/prod...aspx?id=SL3174 |
08-15-2016, 08:55 AM | #27 | |
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Re: u joint lube issues
Quote:
If you pump some more in it won't do any harm, and you should soon see it coming out the opening. |
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08-15-2016, 12:31 PM | #28 |
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Re: u joint lube issues
John Deere grease has the property -I believe it is called thixatropic. It is normally solid and if stirred up it becomes liquid. Locktite has the same property which is why they say shake it before use-makes it more liquid to flow on the threads.
So when the u joint spins,the grease thins and lubricates. When it thins it also migrates to the front driveshaft bearing. John |
08-16-2016, 10:38 PM | #29 |
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Re: u joint lube issues
Thanks . I'll try another tube .
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08-16-2016, 10:55 PM | #30 |
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Re: u joint lube issues
Chrysler Corp used to provide us with a special ball joint grease, that was designed to constantly "channel" & move around.
I "wonder" if such a grease is still available??? Bill W.
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08-16-2016, 11:59 PM | #31 |
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Re: u joint lube issues
Don't know. But a search brought up an interesting article on the introduction of hydraulic brakes at Chrysler:
https://books.google.com.au/books?id...grease&f=false |
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