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Re: [GMCnet] Upper ball Joint replacement. [message #242946 is a reply to message #242901]

Mon, 10 March 2014 16:25

USAussie

Messages: 15912
Registered: July 2007
Location: Sydney, Australia

Karma:

Senior Member

Corley,

Oops! You're right!

I ASSUMED that someone who was greasing ball joints with a sealed boot would be smart enough to realize that when the boot ballooned
grease was going in.

Other than ball joints with boots what other parts have you run into that are sealed and have a grease zerk? I can't think of any
parts like that off the top of my head.

It seems to me an engineer that designed a part that needed to be greased through a zerk and specified a seal that would not allow
grease to escape needs to have his head examined!

Regards,
Rob M.
Sydney, Australia
AUS '75 Avion - The Blue Streak TZE365V100428
USA '75 Avion - Double Trouble TZE365V100426

-----Original Message-----
From: gmclist-bounces@temp.gmcnet.org [mailto:gmclist-bounces@temp.gmcnet.org] On Behalf Of Corley Wooldridge
Sent: Tuesday, March 11, 2014 1:13 AM
To: gmclist@temp.gmcnet.org
Subject: Re: [GMCnet] Upper ball Joint replacement.

USAussie wrote on Sat, 08 March 2014 15:10
> G'day,
>
> When you use a grease gun it is IMPERATIVE you see old grease coming out of whatever you are greasing as that's the only way to
tell if fresh grease is going in.

Except... If you force grease out of a sealed part, you will destroy the seal, which in turn allows water into the part which
destroys the part. Therefore, in general, forcing grease out of sealed parts is a no-no. I don't know the seal quality of the GMC
ball joints, and certainly not all ball joints use positive seals, but some do. AND, before you mention it, some seals are made to
allow grease to flow out, but block water coming back in.

My advise is, watch the part as you are greasing it, if the boot seal is ballooning, the part probably has a real positive seal, and
it's best not to cause it to break.

That's just what I do...

Corley

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Regards, Rob M. (USAussie) The Pedantic Mechanic Sydney, Australia '75 Avion - AUS - The Blue Streak TZE365V100428 '75 Avion - USA - Double Trouble TZE365V100426

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[Message index]

		[GMCnet] Upper ball Joint replacement. By: BobDunahugh on Thu, 06 March 2014 01:24
		Re: [GMCnet] Upper ball Joint replacement. By: Matt Colie on Thu, 06 March 2014 10:22
		Re: [GMCnet] Upper ball Joint replacement. By: Loffen on Thu, 06 March 2014 11:04
		Re: [GMCnet] Upper ball Joint replacement. By: mikethebike on Thu, 06 March 2014 20:46
		Re: [GMCnet] Upper ball Joint replacement. By: Steve on Thu, 06 March 2014 20:53
		Re: [GMCnet] Upper ball Joint replacement. By: Bullitthead on Thu, 06 March 2014 20:58
		Re: [GMCnet] Upper ball Joint replacement. By: emerystora on Thu, 06 March 2014 21:15
		Re: [GMCnet] Upper ball Joint replacement. By: USAussie on Fri, 07 March 2014 01:00
		Re: [GMCnet] Upper ball Joint replacement. By: emerystora on Fri, 07 March 2014 01:47
		Re: [GMCnet] Upper ball Joint replacement. By: Carl S. on Fri, 07 March 2014 12:54
		Re: [GMCnet] Upper ball Joint replacement. By: Craig Lechowicz on Thu, 06 March 2014 21:23
		Re: [GMCnet] Upper ball Joint replacement. By: winter on Sat, 08 March 2014 09:17
		Re: [GMCnet] Upper ball Joint replacement. By: mtnman111 on Sat, 08 March 2014 09:30
		Re: [GMCnet] Upper ball Joint replacement. By: USAussie on Sat, 08 March 2014 18:10
		Re: [GMCnet] Upper ball Joint replacement. By: USAussie on Sat, 08 March 2014 18:15
		Re: [GMCnet] Upper ball Joint replacement. By: corleyw on Mon, 10 March 2014 09:12
		Re: [GMCnet] Upper ball Joint replacement. By: USAussie on Mon, 10 March 2014 16:25
		Re: [GMCnet] Upper ball Joint replacement. By: rgogan on Sat, 10 March 2018 14:07
		Re: [GMCnet] Upper ball Joint replacement. By: rgogan on Sat, 10 March 2018 14:28
		Re: [GMCnet] Upper ball Joint replacement. By: James Hupy on Sat, 10 March 2018 14:39
		Re: [GMCnet] Upper ball Joint replacement. By: USAussie on Sat, 10 March 2018 17:08
		Re: [GMCnet] Upper ball Joint replacement. By: JohnL455 on Sun, 09 March 2014 10:14
		Re: [GMCnet] Upper ball joint replacement By: BobDunahugh on Mon, 10 March 2014 02:38
		Re: [GMCnet] Upper ball Joint replacement. By: JohnL455 on Mon, 10 March 2014 16:31
		Re: [GMCnet] Upper ball Joint replacement. By: jhbridges on Sun, 11 March 2018 09:23
		Re: [GMCnet] Upper ball Joint replacement. By: JohnL455 on Mon, 12 March 2018 21:47
		Re: [GMCnet] Upper ball Joint replacement. By: Bullitthead on Mon, 12 March 2018 22:55

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