Half U Joint Grease Fitting
Drifting
Joined: Mar 2011
Posts: 1,886
Likes: 9
Yes. Very important. Sometimes (on the driveshaft), if you get that orientation wrong, the grease fitting will bind against the yoke, and you will have to tear everything out and reinstall the Ujoint.
Like many things in my life, I found that out the hard way.
Like many things in my life, I found that out the hard way.
Burning Brakes
Joined: Apr 2010
Posts: 1,018
Likes: 9
From: Winston Ga.
I have put a heck of a lot more torque on grease fitting ujoints in my old jeep than most of these cars are.
bouncing up a hill on 40 inch tires will put a lot of torque on a joint. never had one fail due to the fitting.
Last edited by jnealg; Dec 6, 2013 at 02:12 PM.
Advanced
Joined: Jun 2013
Posts: 64
Likes: 1
From: Lambertville Michigan
Myth, at least to the extent that most folks will use one.
I have put a heck of a lot more torque on grease fitting ujoints in my old jeep than most of these cars are.
bouncing up a hill on 40 inch tires will put a lot of torque on a joint. never had one fail due to the fitting.
I have put a heck of a lot more torque on grease fitting ujoints in my old jeep than most of these cars are.
bouncing up a hill on 40 inch tires will put a lot of torque on a joint. never had one fail due to the fitting.
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Race Director
Joined: Apr 2009
Posts: 19,294
Likes: 2,753
From: Charlotte NC
DUB
Race Director
Joined: Apr 2009
Posts: 19,294
Likes: 2,753
From: Charlotte NC
Myth, at least to the extent that most folks will use one.
I have put a heck of a lot more torque on grease fitting ujoints in my old jeep than most of these cars are.
bouncing up a hill on 40 inch tires will put a lot of torque on a joint. never had one fail due to the fitting.
I have put a heck of a lot more torque on grease fitting ujoints in my old jeep than most of these cars are.
bouncing up a hill on 40 inch tires will put a lot of torque on a joint. never had one fail due to the fitting.
DUB
Racer
Joined: Sep 2009
Posts: 437
Likes: 3
From: Alvin Texas
The real issue I have with zerked joints is the contamination that gets past the ball/spring seal in the zerk. A small amount gets past every time it is greased no matter how much you clean the zerk, a cap helps to prevent it, but how many use them? Pressure washing doesn't help at all.
Zerk joints never lasted as long as the non zerk joints on our rice combines. Torque was not an issue. (dust, dirt and moisture)= wear= failure.
Zerk joints never lasted as long as the non zerk joints on our rice combines. Torque was not an issue. (dust, dirt and moisture)= wear= failure.
Advanced
Joined: Jun 2013
Posts: 64
Likes: 1
From: Lambertville Michigan
The real issue I have with zerked joints is the contamination that gets past the ball/spring seal in the zerk. A small amount gets past every time it is greased no matter how much you clean the zerk, a cap helps to prevent it, but how many use them? Pressure washing doesn't help at all.
Zerk joints never lasted as long as the non zerk joints on our rice combines. Torque was not an issue. (dust, dirt and moisture)= wear= failure.
Zerk joints never lasted as long as the non zerk joints on our rice combines. Torque was not an issue. (dust, dirt and moisture)= wear= failure.
It is very important to remember that when you grease a Spicer u-joint you must purge ALL FOUR (4) of the seals. The seals are designed with this in mind. This purge process will flush out all of the contamination. Some times this is hard to do when installed in the car. If it is not done this way you are risking the burn up of the non purged trunnion.