Grease nipples / Zerks clogged? - Defender Source
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  #1  
Old October 21st, 2012, 11:18 AM
sro
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Sam Odio
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Grease nipples / Zerks clogged?

I've attempted to grease the Zerks on the axel but can't seem to get any grease in. The grease just squeezes out between the gun's connector and the Zerk.

I was able to grease the Zerks on the back tire carrier fine. The grease came out at the joint between the carrier arm and the door attachment (that is, not at the Zerk itself). So I know I'm at least doing something right.

Any suggestions? Haven't had to use a grease gun before!
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  #2  
Old October 21st, 2012, 11:38 AM
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I feel the 14 year old coming out in me...I'll resist. Sometimes it comes down to just getting the gun on just right if you're using a @home type gun. It sounds like that might be the case since you had it working on the tire carrier. you may be able to remove some of the zerts and soak them in PB.
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  #3  
Old October 21st, 2012, 11:40 AM
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Nipples do get plugged and there are tools, higher pressure grease injectors, to un-clog them.
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  #4  
Old October 21st, 2012, 04:26 PM
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Take them off and try pumping grease through them. If nothing comes out spray them with brake clean and try them again.
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  #5  
Old October 21st, 2012, 04:36 PM
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Quote:
Originally Posted by Dennis View Post
Nipples do get plugged and there are tools, higher pressure grease injectors, to un-clog them.
Unfortunately, zerks do have problems (clogs as well as breaking) - basically a disposable item. I believe Ace Hardware carries zerks in bags of 5-10 of various sizes. Installing a new zerk is a cheap/fast alternative.
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  #6  
Old October 21st, 2012, 07:32 PM
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Yeah, I wouldn't fool with trying to clean them. The slip joint on a stock shaft takes a 1/4-28 thread. The others depend on the u-joint.
When was the last time you lubed the u-joints? It could be that the grease in the u-joints is so dry you can't get any to flow.
If you grease them every 5,000 miles the zerks won't clog. You can also install a set of the little caps for the zerks.
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Old October 21st, 2012, 08:47 PM
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Quote:
Originally Posted by Antichrist View Post
Yeah, I wouldn't fool with trying to clean them. The slip joint on a stock shaft takes a 1/4-28 thread. The others depend on the u-joint.
When was the last time you lubed the u-joints? It could be that the grease in the u-joints is so dry you can't get any to flow.
If you grease them every 5,000 miles the zerks won't clog. You can also install a set of the little caps for the zerks.

They don't really go bad, nothing wrong with cleaning them. It's just a ball bearing and a spring.
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Old November 9th, 2012, 03:48 PM
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Ok, so I tried cleaning the zerk, repositioning the gun, replacing the zerk, and using a different grease gun. Nothing works for this one zerk! I've even taken off the zerk to make sure the the threaded opening isn't clogged.

Whenever I pump grease into it, despite everything I try, the grease comes out between the gun and the zerk itself.

I'm able to grease all other zerks without problem.

Any thoughts? This one guy is driving me crazy.
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  #9  
Old November 9th, 2012, 03:59 PM
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have you tried replacing the zerk?
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  #10  
Old November 9th, 2012, 05:38 PM
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yup, replaced it.
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  #11  
Old November 10th, 2012, 07:24 AM
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See post #6.
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Old November 10th, 2012, 09:02 AM
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fwiw Tractor Supply carries a very good assortment of metric and standard thread zerks.
For those of you living in metropolitan areas using your Defenders to traverse parking garages,potholes, and drivethru's, and running at's,oh well ....... Tractor Supply typically only locates stores in agricultural areas.
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Old November 10th, 2012, 12:17 PM
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Quote:
Originally Posted by 130Tdi
fwiw Tractor Supply carries a very good assortment of metric and standard thread zerks.
For those of you living in metropolitan areas using your Defenders to traverse parking garages,potholes, and drivethru's, and running at's,oh well ....... Tractor Supply typically only locates stores in agricultural areas.
Thank goodness for mail order otherwise us city people would be completely cut off from the world! ;-)
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Old November 10th, 2012, 12:23 PM
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Quote:
Originally Posted by Antichrist View Post
Yeah, I wouldn't fool with trying to clean them. The slip joint on a stock shaft takes a 1/4-28 thread. The others depend on the u-joint.
When was the last time you lubed the u-joints? It could be that the grease in the u-joints is so dry you can't get any to flow.
If you grease them every 5,000 miles the zerks won't clog. You can also install a set of the little caps for the zerks.
I bought this car and didn't get maintenance history. It's possible (even likely) that the u joints haven't been greased in a long time. What does this mean? Do I need to disassemble and clean them?
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  #15  
Old November 10th, 2012, 12:32 PM
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Pump enough grease through and it should push out any contaminants...
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  #16  
Old November 10th, 2012, 04:16 PM
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Quote:
Originally Posted by leastonce View Post
Thank goodness for mail order otherwise us city people would be completely cut off from the world! ;-)
Typed that tongue in cheek of course. Lived 20 mins from Washington DC for the past 15yrs, ie no where near one of these, until I moved to my farm 5 mos ago.
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  #17  
Old November 12th, 2012, 08:31 AM
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Quote:
Originally Posted by sro View Post
I bought this car and didn't get maintenance history. It's possible (even likely) that the u joints haven't been greased in a long time. What does this mean? Do I need to disassemble and clean them?
No, replace the u-joints.
If you clean the fittings (or fit new ones) and still can't grease the u-joints, replace the u-joints.
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  #18  
Old November 12th, 2012, 08:40 AM
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Off Topic - Doug, there is a Tractor Supply Company in Leesburg - about 25-30 miles west of Wash, DC.
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  #19  
Old November 12th, 2012, 08:58 AM
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Originally Posted by Firemanshort View Post
Off Topic - Doug, there is a Tractor Supply Company in Leesburg - about 25-30 miles west of Wash, DC.
There is now one in Manassas as well
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