Currie Johnny Joint wont take grease - JeepForum.com
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post #1 of 15 Old 08-10-2019, 08:15 PM Thread Starter
andrewf09
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One of my control arms was making noise. I installed new bushing and cleaned everything up. Now when I try to add grease, it comes back out through the zerk fitting. I took the fitting off and cleaned it. Before putting it back on I put grease through it with no problem. When it’s installed grease still backs out. The bushing are sitting flush and everything looks good. Any ideas?


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post #2 of 15 Old 08-10-2019, 10:37 PM
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When you mention "backs out", does it come out the tiny hole in the zerk fitting like playdough when you pull zerk chuck? Or does it spill out around zerk chuck while pumping?

Did you replace zerk?

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post #3 of 15 Old 08-11-2019, 06:25 AM
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Those stupid things have a little ball check valve helped by a crappy spring. Think Shrader valve but really crappy. All made in China or equivalent. Don't worry about it. If you get a pump or three in and it wants to squirt a bit to equalize pressure that is fine. It seems it's getting odder if they don't leak.
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post #4 of 15 Old 08-12-2019, 10:59 AM
Ross
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swap a zirk fitting from a bushing that takes grease and see what happens.

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post #5 of 15 Old 08-12-2019, 06:04 PM
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Is the grease hole in the bushing lined up with the zerk? If you take the zerk out, can you see or feel a hole? Not sure if you have the same issue as I did, but one of my zerks was spitting the grease out the nipple because the bushing wasn't lined up correctly from currie. The bushing completely blocked grease from getting in the joint.

Link to picture of the bushing with the hole.

https://www.currieenterprises.com/CE-9112NRK
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post #6 of 15 Old 08-14-2019, 11:35 AM
Jerry Bransford
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Keep in mind that Currie's Johnnyjoints have extremely tight tolerances inside and generally speaking don't take grease easily through a zerk fitting. They're not loose enough inside for that unless they're worn. I'll grease mine when I have the time to take them apart.

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post #7 of 15 Old 08-14-2019, 01:46 PM
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Quote:
Originally Posted by Jerry Bransford View Post
Keep in mind that Currie's Johnnyjoints have extremely tight tolerances inside and generally speaking don't take grease easily through a zerk fitting. They're not loose enough inside for that unless they're worn. I'll grease mine when I have the time to take them apart.
so what happens if they get noisy and are newer?

I just installed new TMR arms with JJs at both ends. After a 2000km+ overland trip towing my tent trailer, my front driver lower arm is super creaky. No water/mud crossings, sunny weather and forest service roads/hwy paved roads. Is this normal? How do I grease it.

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post #8 of 15 Old 08-14-2019, 02:01 PM
Jerry Bransford
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Mine creak a little in some situations, I'm not worried about it. One of polyurethane's (the race inside) traits is that it can squeak and groan. Moly grease the inside the next time you have the time.
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post #9 of 15 Old 08-14-2019, 02:33 PM
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Quote:
Originally Posted by Jerry Bransford View Post
Mine creak a little in some situations, I'm not worried about it. One of polyurethane's (the race inside) traits is that it can squeak and groan. Moly grease the inside the next time you have the time.
Thanks for the tip on the type of grease Jerry.

Mine driver side arms (pretty sure lower), started creaking after about 1000kms on them towing. It does it EVERY time I take off in first / second with a big load on it (lots of load with V8).

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post #10 of 15 Old 08-14-2019, 02:38 PM
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Can you "feel" the creak?

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post #11 of 15 Old 08-14-2019, 02:43 PM
Jerry Bransford
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This from mrblaine...

"Currie wants a moly grease in the joint. I've tested several. The best I have found so far is the Redline with red moly in it. We don't grease through the fittings at all. We pull the joint apart, clean it, lube just the ball and reassemble it. The difference in breakaway torque goes from needing a decent lever to almost being able to move it with your fingers."
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post #12 of 15 Old 08-14-2019, 02:56 PM
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Can you "feel" the creak?
that is a great question...which I am still trying to figure out. The noise is a lot more prevalent than a "feel", if any feel. Operates as normal just noisy at takeoff as the front end lifts out of 1st/2nd.

Gonna inspect this week as I just got back from a long camp trip. Thanks

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post #13 of 15 Old 08-14-2019, 08:38 PM
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I thought for sure one of the Johnny Joints was creaking on mine, took them all apart, cleaned em, greased em. put em back together and guess what, creak was still there. After further inspection it turned out to be one of the front driver side seat bolts was a little loose and on start and stops it would creak, tightened it up no more noise. Oh well, joints probably needed cleaning / greasing anyway. Just something for you to check.
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post #14 of 15 Old Today, 09:06 AM
TJnBC
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thought I would just update what I found with mine.

Ended up chasing it down to a rear upper CA. The bolt connection was really creaky at the diff mount. I loosened the bolt, rocked the jeep a bit to find its happy place, re-torqued and sound /feel is gone. This was not before removing rear track bar (thinking it was it) and re-torqueing all bolts on CAs. Noises/feel like to transmit from one place to another on these darn jeeps

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post #15 of 15 Old Today, 10:29 AM
RWKHausSupply
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Which joint is it? Upper? Lower? front? Rear?
The front upper I am pretty sure has a zerk on the bolt but no hole in the ball of the joint so there is no where for the grease to go....


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