#1
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lubrication front axle
Hi , I think i must be missing something ,I have been under the lorry but i still cannot see where you lubricate the 4wd tracta units i know it is possible but as i say i must be looking in the wrong place , Phil did tell me where but i am still lost i have put some pictures of the axle on .
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#2
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It's there in your pictures.
Clean up the old grease and you will find a small pipe plug..... take it out and temporarily replace with a grease fitting and start pumping....... don't over do it or it will sh*t all over as soon as it gets hot while driving. I would not give it more than 1/4 grease tube if you are doing it regularly.
HAve fun..... Cheers Do not forget to remove the grease fitting and replace the plug when finished
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Bob Carriere....B.T.B C15a Cab 11 Hammond, Ontario Canada |
#3
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Thanks for that Bob , I am at a local show tomorrow so it will be Monday afternoon before i can have a look you have been a great help , Paul.
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#4
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Here are some shots of location
Hi Paul
Here are some photos to show what Bob is talking about. The little plugs are hidden under the grease. Removing the grease fittings is optional after pumping new grease in. If the truck is only driven on the road the grease fittings will not cause a problem. If you drive off road or through tall brush they can get caught on stuff. One of my trucks has grease fittings as it never goes off road anymore and I lost the little plugs. Bigger issue on putting grease in at this location is do you want to put the new grease at the outside of the old grease or in the center of the joint. On my web site I have this comment- Quote:
Cheers Phil
__________________
Phil Waterman `41 C60L Pattern 12 `42 C60S Radio Pattern 13 `45 HUP http://canadianmilitarypattern.com/ New e-mail Philip@canadianmilitarypattern.com |
#5
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Thanks for that Phil now i can see what i am looking for , I will try to grease bit tomorrow Monday afternoon, I had seen a strip down picture of the universal joint so i see where you are coming from with the pipe ,
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#6
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Lubricating CV joints
Just had a look at my 4-7/8" steering ends on my F-15A. I could not remember seeing plugs in the lower part of the ball sockets. A quick look confirmed that there are no plugs in them.
I then had a look at a couple of ball socket spares and they were drilled and tapped for plugs so at some time the plugs were added or removed during production. Which came first though? I also noted that there is an identical plug that fits my tapped ball socket in the end of the CV joints. Could that be a lubrication point for the CV joint as it goes all the way through to the balls and cage in the CV? The pilot pin which fits in the end of that CV joint hole has three grooves in it which may be to let grease pass under pressure into the innards of the CV joint. There is nothing in the Maintenance Manual regarding this but perhaps it was just common practice. As suggested here, filling the ball with grease causes more problems than it solves unless it is accurately directed to where it is required which is inside the CV joint. Perhaps the plug in the ball housing is more for draining water after front axle immersion than for lubrication? Cheers,
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F15-A 1942 Battery Staff Jacques Reed |
#7
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Ball socket plugs
Quote:
Interestingly the diff with the plugs in the ball sockets was dated 4-42 and the one without the plugs was dated 3-44. Assuming the steering ends were not replaced in service, it seems to indicate the plugs were an earlier fitment on those ends and later they were deleted during production. If that is so, I wonder why? Cheers,
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F15-A 1942 Battery Staff Jacques Reed |
#8
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I was wondering if this was Ford vs. Chevy thing?
Hi Jacques
I was wondering if this was going to be a Chevy thing vs Ford. As to when it came in and went out or was an if we have time thing? My 1941 Pat 12 has them as does my June 1945 HUP. Given how my truck get driven the service manual interval to tear down, clean, clean and repack just doesn't make sense. I've been shutting 10-20 shots of modern CV joint grease into center of the ball unit each spring now for years. Went with a copper tube over steel figuring it would be less likely to damage anything. You can really feel when you have the ball in the correct position to insert. Years ago after having the HUP on a particularly muddy trail ride, mud up to the running board and water up to mid wheel, for several hours, I did tear everything down to check for mud and water. Brakes were well gummed with mud but there was no sign of water getting beyond the ball or hub seals. Cheers Phil
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Phil Waterman `41 C60L Pattern 12 `42 C60S Radio Pattern 13 `45 HUP http://canadianmilitarypattern.com/ New e-mail Philip@canadianmilitarypattern.com |
#9
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Lubricating Ford Rzeppa CV joints (B type)
I recently found this in the British War Dept Ford Special Pattern Vehicle Handbook. It confirms what I thought. On a Ford with the Rzeppa type CV joints (B design) they can be lubricated between major overhaul by pumping lube down the central hole from the outer end after removing the hubcap and plug.
Unfortunately, Bendix type (A design) as used on Chev CMP's require the described method of a tube through the access plug hole in the socket as there is no center hole through it. With Fords that lack the access plug hole in the socket, (and some do), the only way to get lube into the central cage and balls between overhauls is through the center hole in the CV joint. I have noted also on several Rzeppa joints I had, that the slot in the plug in the end is chewed up making its removal difficult, if not impossible. It is a very shallow slot so requires a screwdriver with a good blade that hasn't been used regularly as a prybar or scraper.
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F15-A 1942 Battery Staff Jacques Reed Last edited by Jacques Reed; 26-08-24 at 07:14. Reason: correct grammar. |
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