The Ford Barn

Fibber Mcgee · 11-07-2012, 10:09 AM

I've been told to use low temperature grease for the ujoint. What is considered low temperature? I have some that says 275 ,is that low enough?

Old Henry · 11-07-2012, 11:22 AM

I have not heard of the low temperature requirement. The operator's manual specifies "cylinder oil soda soap grease." It seems from previous discussions on this forum and the Early Ford V8 forum that John Deere Corn Head Grease is one of the modern greases that is closest to that old cylinder oil soda soap grease (which is no longer made) so that's what I and many others use. Because this grease is 0 grade and is thixotropic (thins when agitated) it has properties similar to grease with a low melting temperature as you are looking for. The advantage is that it does not have to heat to thin, it thins just by being agitated so it is recommended for -30° to 330° F operating temperatures.

See it demonstrated here: https://www.youtube.com/watch?v=UEwk_sYP6A8

Get it here: http://www.greenpartstore.com/John-D...-AN102562.html or any John Deere store.

G.M. · 11-07-2012, 02:15 PM

The cheapest grease is usually low drop point or low drip point grease. 250 to 275 is in the right range. If high temperature grease, 500 degree is used the "U" jount cuts a hole in the center throwing the grease toward the outside of the bell. The "U" joint runs in this void and doesn't get lubricated. Low melt grease drops down in the cavity as it warms up, the "U" joint dips into the grease and gets lubed.
G.M.

Fibber Mcgee · 11-07-2012, 04:34 PM

Thanks guys. After my last go round with this I just wanted to get it right this time.

Rocketsled · 11-07-2012, 04:49 PM

A real low-temp grease has silicone fluid and is OK down to -100F. Examples are JIT Low Temp Bearing Grease and Dow Corning 33.

31chevy · 11-08-2012, 07:44 AM

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I agree with Old Henry, plus one tube is all you need to fill the cavity. I learned this thanks to the Barners.
Gary.

Fibber Mcgee · 11-08-2012, 09:17 AM

Quote:

Originally Posted by 31chevy

I agree with Old Henry, plus one tube is all you need to fill the cavity. I learned this thanks to the Barners.
Gary.

I put in a tube of grease last time and it was to much(it ended up in the transmission) I'm going with less this time as that rear baffle is a pain to replace again.

G.M. · 11-08-2012, 03:51 PM

It won't hurt to have a little grease in the trans. I put molly grease in the rear and trans to about the consistancy of honey. I use 100% grease in the steering. The exhaust manifold melts that. I don't have any problems with it in the rear and trans but I live where it's hot all time.

Fibber Mcgee · 11-08-2012, 05:21 PM

Quote:

Originally Posted by G.M.

It won't hurt to have a little grease in the trans. I put molly grease in the rear and trans to about the consistancy of honey. I use 100% grease in the steering. The exhaust manifold melts that. I don't have any problems with it in the rear and trans but I live where it's hot all time.

I ended up with alot in the transmission and it apparently pushed the baffle forward on its way. I filled it until it came out the speedo turtle as someone had said and apparently that was to much. I just don't want to repeat that again. What about the 0 or 00 grease (oil?) Ive seen?

Old Henry · 11-08-2012, 08:25 PM

If you use the corn head grease you won't need to pack the whole space and probably shouldn't as it flows well when agitated such that 1/2 to 2/3 fill would be plenty IMO.

David J · 11-09-2012, 07:11 AM

What kind of shape do you think your u-joint will be in if it has to get to 275*F before the lube melts ? LOW MELT GREASE = 275*F ??? . The stuff Ford used was pretty much mineral oil with tallow thickeners . This would be a melting point of 80 - 90 *F . Try and find that nowdays . I see you have learned your lesson on how well grease compresses when the cavity is full and the u-joint makes room for itself to spin . FACTORY SPEC is 4 oz . Cornhead grease has merit but is a UREA based lubricant . Wonderful stuff in CORNHEADS on the combine and in the steering gear of my unstyled tractors . I am going to continue using straight SAE 140 in my old Fords and whatever concotion of snake oil others want to use is not my problem . This subject is nothing more than a skipping bad record & it SUCKS !!!! Time to re-visit John Deere land for a while as I have no intention of letting this follishness become irritating . Besides I just got home from ND with a VERY GENNIE 1960 John Deere 730 ES Diesel that hasn't run in 20 years so therapy commences TODAY . David J

Quote:

Originally Posted by Fibber Mcgee

I've been told to use low temperature grease for the ujoint. What is considered low temperature? I have some that says 275 ,is that low enough?

G.M. · 11-09-2012, 09:20 AM

The grease don't have to melt to become oil. It just needs a little warmth to slightly sagg. I have run low temp grease in the "U" joint of my 39 convertible for 32 years and 115,000 miles at highway speeds o 65 to 75 MPH. A lot of these miles were on trips of 1,200 in 2 days. Still runs quiet plus I have 10 or more other old Fords I drive with 275 degree grease in the "U" joints and never a problem. Show me some proof of where it don't work. G.M.

11-07-2012, 10:09 AM	#1
Fibber Mcgee Senior Member Join Date: Oct 2010 Location: Callahan Fla Posts: 1,149	Low temp grease I've been told to use low temperature grease for the ujoint. What is considered low temperature? I have some that says 275 ,is that low enough? __________________ Wanted, a car with a " Dynaflex Superflowing Unijet Turbovasculator which is Syncromeshed to the Multicoil Hydrotensioned Dual vacuum Dynomometer. "

11-07-2012, 11:22 AM	#2
Old Henry Senior Member Join Date: Oct 2010 Location: Orem, Utah Posts: 5,762	Re: Low temp grease I have not heard of the low temperature requirement. The operator's manual specifies "cylinder oil soda soap grease." It seems from previous discussions on this forum and the Early Ford V8 forum that John Deere Corn Head Grease is one of the modern greases that is closest to that old cylinder oil soda soap grease (which is no longer made) so that's what I and many others use. Because this grease is 0 grade and is thixotropic (thins when agitated) it has properties similar to grease with a low melting temperature as you are looking for. The advantage is that it does not have to heat to thin, it thins just by being agitated so it is recommended for -30° to 330° F operating temperatures. See it demonstrated here: https://www.youtube.com/watch?v=UEwk_sYP6A8 Get it here: http://www.greenpartstore.com/John-D...-AN102562.html or any John Deere store. __________________ Prof. Henry (The Roaming Gnome) "It is good to have an end to journey toward; but it is the journey that matters, in the end.” Ursula K. Le Guin in The Left Hand of Darkness Last edited by Old Henry; 11-07-2012 at 12:52 PM.*

11-07-2012, 02:15 PM	#3
G.M. Senior Member Join Date: May 2010 Location: Florida and Penna. Posts: 4,471	Re: Low temp grease The cheapest grease is usually low drop point or low drip point grease. 250 to 275 is in the right range. If high temperature grease, 500 degree is used the "U" jount cuts a hole in the center throwing the grease toward the outside of the bell. The "U" joint runs in this void and doesn't get lubricated. Low melt grease drops down in the cavity as it warms up, the "U" joint dips into the grease and gets lubed. G.M. __________________ www.fordcollector.com Last edited by G.M.; 11-07-2012 at 07:36 PM.

11-07-2012, 04:34 PM	#4
Fibber Mcgee Senior Member Join Date: Oct 2010 Location: Callahan Fla Posts: 1,149	Re: Low temp grease Thanks guys. After my last go round with this I just wanted to get it right this time. __________________ Wanted, a car with a " Dynaflex Superflowing Unijet Turbovasculator which is Syncromeshed to the Multicoil Hydrotensioned Dual vacuum Dynomometer. "

11-07-2012, 04:49 PM	#5
Rocketsled Senior Member Join Date: May 2010 Location: Wakefield, N.H. USA Posts: 142	Re: Low temp grease A real low-temp grease has silicone fluid and is OK down to -100F. Examples are JIT Low Temp Bearing Grease and Dow Corning 33.

11-08-2012, 07:44 AM	#6
31chevy Senior Member Join Date: May 2010 Location: Lake City Mi. Posts: 807	Re: Low temp grease Sponsored Links (Register now to hide all advertisements) I agree with Old Henry, plus one tube is all you need to fill the cavity. I learned this thanks to the Barners. Gary.

11-08-2012, 03:51 PM	#8
G.M. Senior Member Join Date: May 2010 Location: Florida and Penna. Posts: 4,471	Re: Low temp grease It won't hurt to have a little grease in the trans. I put molly grease in the rear and trans to about the consistancy of honey. I use 100% grease in the steering. The exhaust manifold melts that. I don't have any problems with it in the rear and trans but I live where it's hot all time. __________________ www.fordcollector.com

11-08-2012, 08:25 PM	#10
Old Henry Senior Member Join Date: Oct 2010 Location: Orem, Utah Posts: 5,762	Re: Low temp grease If you use the corn head grease you won't need to pack the whole space and probably shouldn't as it flows well when agitated such that 1/2 to 2/3 fill would be plenty IMO. __________________ Prof. Henry (The Roaming Gnome) "It is good to have an end to journey toward; but it is the journey that matters, in the end.” *Ursula K. Le Guin in The Left Hand of Darkness

11-09-2012, 09:20 AM	#12
G.M. Senior Member Join Date: May 2010 Location: Florida and Penna. Posts: 4,471	Re: Low temp grease The grease don't have to melt to become oil. It just needs a little warmth to slightly sagg. I have run low temp grease in the "U" joint of my 39 convertible for 32 years and 115,000 miles at highway speeds o 65 to 75 MPH. A lot of these miles were on trips of 1,200 in 2 days. Still runs quiet plus I have 10 or more other old Fords I drive with 275 degree grease in the "U" joints and never a problem. Show me some proof of where it don't work. G.M. __________________ www.fordcollector.com