| Re: [GMCnet] Upper ball Joint replacement. [message #242901 is a reply to message #242795] |
Mon, 10 March 2014 09:12   |
corleyw
Messages: 130
Registered: June 2007
Location: Battle Ground, WA
Karma:
|
Senior Member |
|
|
| 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
'76 Glenbrook
29 other vehicles
|
|
|
|
GMCforum
Search
Help
Register
Login
Home
