Anybody have a good verified source for high and low AC valves? We have tried some valves that say they are for LR3 and they leak. Land Rover does not sell the valves separately, only the complete line.

Any help would be appreciated!

 

I assume you mean the cores for the valves? NAPA Temp Products 801803 Cap and Valve kit was what I used. Maybe a fluke, but the bag I had came with three of the size needed. The high and low are the same. I am surprised though that the ones you have leak since they pretty much thread in or not, period. So if they thread in they should work fine? It is a very basic valve.

 

I believe the o rings are a different size on my replacements.

I’ll check your part numbers! Thank you.

 

Red is o ring from the readily available replacement valve (can’t remember brand/part number), the other is a leaking genuine.

The leak takes a month to stop blowing cold.

 

I think I am confused on the part here.... Are your actual valve bodies removable? My low side is part of the line but I never really notice, like the pressure switch, the high side is removable and has a hex base? Does the entire low pressure port also thread off? If so I never gave these much thought and when I overhaul my system I did not touch them. I did replace the valve cores because those are the most common leak point on an AC system. That would be the kit I mentioned from Napa. I also did a ton of o-rings on the lines. But there is no mention in the manuals for doing those o-rings.

 

Those are o rings for the core. There is a valve core plus body kit sold, we can see threads on the low side, but can’t unscrew the low side valve body.

I’ve got a few parts LR3s, once the lines are removed I’ll attempt to unscrew the complete valve assembly.

 

Ah... need a banana for scale. Those look HUGE! lol Okay, so back to what I said earlier. The kit from NAPA would work. When I redid mine I used them, then my compressor blew, and it was weeks before I got around to swapping the compressor and flushing the system During that down time my pressures were perfect, never went down. And now I have working AC again with those same valve cores and they do not appear to be leaking at all.