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#4545249 - 10/16/17 03:39 PM Grease leaks from lower ball joints.
motor_oil_madman Offline


Registered: 11/29/09
Posts: 4858
Loc: Houston, Texas
What's the warranty on these things? There is supposed to be a relief valve at the bottom, but it seems like the grease comes out before the boot even expands at all.
_________________________
2007.5 dodge cummins 6.7 liter. Chevron Delo400 15w40. 7000 mile or 250-300hr intervals.


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#4545250 - 10/16/17 03:45 PM Re: Grease leaks from lower ball joints. [Re: motor_oil_madman]
motor_oil_madman Offline


Registered: 11/29/09
Posts: 4858
Loc: Houston, Texas
I don't know if maybe the boot came off or what since it's all covered in dirt.
_________________________
2007.5 dodge cummins 6.7 liter. Chevron Delo400 15w40. 7000 mile or 250-300hr intervals.


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#4545353 - 10/16/17 05:31 PM Re: Grease leaks from lower ball joints. [Re: motor_oil_madman]
JHZR2 Offline



Registered: 12/14/02
Posts: 41795
Loc: New Jersey
Relief valve?!? Then maybe mine aren't bad after all!

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#4545363 - 10/16/17 05:41 PM Re: Grease leaks from lower ball joints. [Re: motor_oil_madman]
motor_oil_madman Offline


Registered: 11/29/09
Posts: 4858
Loc: Houston, Texas
https://images.search.yahoo.com/search/images;_ylt=A0LEVw1KNeVZUCYAAxNXNyoA;_ylu=X3oDMTE0ZXVidmp0BGNvbG8DYmYxBHBvcwMxBHZ0aWQDQjM5MTlfMQRzZWMDcGl2cw--?p=moog+ball+joint+pressure+relieft+valve&fr2=piv-web&fr=yfp-t#id=46&iurl=http%3A%2F%2Fwww.aftermarketsuspensionparts.com%2Fimages%2FK3199%2FK3199%2520MPS.jpg&action=click
_________________________
2007.5 dodge cummins 6.7 liter. Chevron Delo400 15w40. 7000 mile or 250-300hr intervals.


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#4545369 - 10/16/17 05:47 PM Re: Grease leaks from lower ball joints. [Re: motor_oil_madman]
motor_oil_madman Offline


Registered: 11/29/09
Posts: 4858
Loc: Houston, Texas
Kind of dumb, but I guess it's a good way to change out the grease. lol They show the relief valve right about where the grease leaks out.
_________________________
2007.5 dodge cummins 6.7 liter. Chevron Delo400 15w40. 7000 mile or 250-300hr intervals.


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#4545399 - 10/16/17 06:18 PM Re: Grease leaks from lower ball joints. [Re: motor_oil_madman]
Merkava_4 Offline


Registered: 01/30/07
Posts: 17501
Loc: Clovis, CA
A relief valve is better than a torn boot. You're supposed to point the relief valve inboard away from the rotor.

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#4545420 - 10/16/17 06:34 PM Re: Grease leaks from lower ball joints. [Re: motor_oil_madman]
motor_oil_madman Offline


Registered: 11/29/09
Posts: 4858
Loc: Houston, Texas
https://www.youtube.com/watch?v=bnmlcXdH9TE

Merk I just watched a video about this and this guy makes it sound like you're supposed to pump it with grease and let the old grease out of the relief valve exchanging it for new grease. At the 1:30 mark.
_________________________
2007.5 dodge cummins 6.7 liter. Chevron Delo400 15w40. 7000 mile or 250-300hr intervals.


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#4545424 - 10/16/17 06:35 PM Re: Grease leaks from lower ball joints. [Re: motor_oil_madman]
motor_oil_madman Offline


Registered: 11/29/09
Posts: 4858
Loc: Houston, Texas
One of them they pointed it towards the dust shield unfortunately.
_________________________
2007.5 dodge cummins 6.7 liter. Chevron Delo400 15w40. 7000 mile or 250-300hr intervals.


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#4545443 - 10/16/17 06:48 PM Re: Grease leaks from lower ball joints. [Re: motor_oil_madman]
Merkava_4 Offline


Registered: 01/30/07
Posts: 17501
Loc: Clovis, CA
Yes it's a good idea. I have Moog ball joints, but mine don't have the relief valve. I gotta be careful not to over grease them or they'll bust.

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#4545649 - 10/16/17 09:52 PM Re: Grease leaks from lower ball joints. [Re: motor_oil_madman]
anndel Offline


Registered: 05/28/09
Posts: 245
Loc: Hawaii, USA
Maybe the boot is cracked, wipe all that dirt off and check.

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#4545683 - 10/16/17 10:27 PM Re: Grease leaks from lower ball joints. [Re: motor_oil_madman]
blupupher Offline


Registered: 08/27/04
Posts: 4424
Loc: Katy, Republic of Texas
My Moog joints for my F150 have the "relief valve" on them. As said, the instructions (yes, I read them) say to point them inboard away from the rotor.

As for completely getting all the old grease out each time, no, you should do it till clean grease starts coming out the relief (usually 4-5 squirts every 5000 miles does it for me, the first 2 are just priming everything up, the last 3 are actually pushing old grease out).
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1994 Honda VT1100C: Peak 15w-40/TG/2500 mile OCI
2002 Ford F150: GTX HM 5w-20/EcoGard Syn/1yr OCI
2012 Scion xB: QSUD 0w-20/CQ Blue/5k OCI


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#4545773 - 10/17/17 04:02 AM Re: Grease leaks from lower ball joints. [Re: motor_oil_madman]
Lubener Offline


Registered: 01/22/11
Posts: 2577
Loc: N.Ohio
Originally Posted By: motor_oil_madman
What's the warranty on these things? There is supposed to be a relief valve at the bottom, but it seems like the grease comes out before the boot even expands at all.

Probably was over greased at some point. I wouldn't grease them to the point where the boot balloons out anyway. Unless it is torn, I wouldn't worry.


Edited by Lubener (10/17/17 04:05 AM)
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