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Slide seal supply leak - Printable Version

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+--- Thread: Slide seal supply leak (/showthread.php?tid=4561)


Slide seal supply leak - mickinuk - 10-21-2018

I was tracing a minor leak. One of the push-to-connects had a minor leak on the distribution block that feeds the slide seal pressure regulators. In the process of looking around I turned the plastic lever that looked like an on/off, but as soon as I did that it started leaking air and there are positions where it leaks less, but it still leaks. Do I have to replace the block with the plastic lever or is there some other way of sealing this, such as removing it and tightening something?

TIA
Mick

RE: Slide seal supply leak - rheavn - 10-22-2018

If that was my coach all push in connectors would be replaced with DOT compression fittings.  I have not had a single dot compression fitting that I installed start leaking.  All of my air shut off valves have been replaced due to leaking.  And any component, like the air block, would be replaced once it leaked.

The push in air fittings are a time saver for production, but seem to start leaking after a few years of use in a coach environment.  Prevost owners have the exact same issue and also recommend replacement.

Good luck....................................

RE: Slide seal supply leak - Richard - 10-22-2018

Mick. Other than replacing the block / manifold, you may be able to disassemble and replace the packing around the shaft of the valve. If it has a packing nut, it may be as simple as tightening the nut.

RE: Slide seal supply leak - mickinuk - 10-22-2018

(10-22-2018, 04:42 AM)rheavn Wrote:  If that was my coach all push in connectors would be replaced with DOT compression fittings.  I have not had a single dot compression fitting that I installed start leaking.  All of my air shut off valves have been replaced due to leaking.  And any component, like the air block, would be replaced once it leaked.

Sounds like good advice, I'll go that route on all the connectors I replace.
(10-22-2018, 04:55 AM)Richard Wrote:  Mick.  Other than replacing the block / manifold, you may be able to disassemble and replace the packing around the shaft of the valve. If it has a packing nut, it may be as simple as tightening the nut.

Thanks. I'll take it off today and take a look.

RE: Slide seal supply leak - mickinuk - 10-24-2018

The conclusion of the removing the air manifold is that the shaft of the valve is held in by a circlip and the failure is the seals that are on the plastic shaft. I'm going to get the genuine replacement, but in the meantime, a generic 1-in 4-out manifold from Amazon will do the trick.