Need Some Quick Info On Valve Block Replacement

Disclaimer: Links on this page pointing to Amazon, eBay and other sites may include affiliate code. If you click them and make a purchase, we may earn a small commission.

avslash

Full Access Member
Joined
Nov 22, 2011
Posts
1,255
Reaction score
1,101
Location
The Lone Star State
Replacing a valve block and wondering how to properly connect air lines to a factory new one with these white inserts.

Do these pull out and air line push in without removing the brass fitting, or do I need to remove the brass nuts, fit them over the air lines and reconnect.

I have swapped a block before, but don't recall these little doodads. We just unscrewed the fittings and reconnected.

Thanks

33880873-30C2-441B-AD18-691178750608.jpeg
 
Last edited:

ryanjl

Full Access Member
Joined
Dec 31, 2015
Posts
2,991
Reaction score
1,768
Location
KCMO
I'm not sure, but curious to know the answer. I took out my center valve block a few years ago when I was diagnosing a problem. I cleaned it and reinstalled it, but feel like I may have partially stripped out one of the air line fittings upon reinstallation. It's weighed on my mind and I just recently got around to buying a new one, but it's sitting right next to me on my couch sidetable while I wait for time to do the job.

It certainly looks like you can remove the old plastic airline, remove the old fitting and barb from the end, remove the white plastic pieces from the new valve block, then just insert the bare plastic air line into these new fittings for installation. That's the way it was when I installed Arnott air struts in the front last April.
 

djkaosone

'11 LR4 HSE LUX 5.0L V8
Joined
Oct 26, 2015
Posts
1,004
Reaction score
673
Location
SoCal
Do these pull out and air line push in without removing the brass fitting, or do I need to remove the brass nuts, fit them over the air lines and reconnect.
These are compression fittings. You need to unscrew the brass fittings from the valve block and throw away the white plastic air line. Fit the new brass fitting on your current air lines and feed the air line about 3mm past the brass fitting, and mount it back normally. That's it.
 

avslash

Full Access Member
Joined
Nov 22, 2011
Posts
1,255
Reaction score
1,101
Location
The Lone Star State
These are compression fittings. You need to unscrew the brass fittings from the valve block and throw away the white plastic air line. Fit the new brass fitting on your current air lines and feed the air line about 3mm past the brass fitting, and mount it back normally. That's it.

And that is what I thought I remembered doing before. I recall a bag or package of the ferrules that slip over the air lines and then the brass connector tightens into the block.

That memory was complicated by me thinking I saw a video somewhere of a fellow just popping the white spacers out and pushing in the air lines. When I looked at the new block in my hand, each brass fitting has a paint mark which I would take to indicate it has been torqued or tightened at the factory, so I got to thinking hmmm...
 

ryanjl

Full Access Member
Joined
Dec 31, 2015
Posts
2,991
Reaction score
1,768
Location
KCMO
On this Atlantic British air strut video, they just push the new line into the air strut. Maybe that's what you saw.

Must be a different kind of fitting.
 

djkaosone

'11 LR4 HSE LUX 5.0L V8
Joined
Oct 26, 2015
Posts
1,004
Reaction score
673
Location
SoCal
Found the one I saw. Take a look at 5.04 in this video from Arnott.
Just like that... I too over thunk it. I ended up removing the brass fitting and sliding in the nylon tubing to "make sure" it was all the way in.
 

avslash

Full Access Member
Joined
Nov 22, 2011
Posts
1,255
Reaction score
1,101
Location
The Lone Star State
Just like that... I too over thunk it. I ended up removing the brass fitting and sliding in the nylon tubing to "make sure" it was all the way in.

Exactly what I did when changing one previously. Just saw these new white things and started thinking.
 

avslash

Full Access Member
Joined
Nov 22, 2011
Posts
1,255
Reaction score
1,101
Location
The Lone Star State
Swapped the rear valve block last evening and can confirm for posterity that the fittings are one time push to connect once you pull the little white plugs. They made the replacement super simple.
 

ftillier

Supporting Member
Supporting Member
Joined
Jul 27, 2021
Posts
541
Reaction score
259
Location
Portland, OR, USA
One time push fittings, at in there's no way of taking it apart for the next time, like the push fittings on the dehydrator cover?
 

Latest posts

Members online

Forum statistics

Threads
36,174
Posts
216,855
Members
30,433
Latest member
jruvira
Top