Thread: What happened to your D3/D4 today?

Originally Posted by josh.huber

Those relief valves open. And stay there until the system is well and truely calmed down.

Is the PRV on the high side of the system,and does it vent to atmosphere?Or is it internal between the high and low sides of the system?

Charging using pressures on a system like that isn't good.

Originally Posted by scarry

Is the PRV on the high side of the system,and does it vent to atmosphere?Or is it internal between the high and low sides of the system?

Charging using pressures on a system like that isn't good.

Yeah it's on the high side, not internal, vents external. Yeah charging off pressures on a car isn't good practice, in just guessing that's what he did.

Shane in my experience they are kinda like a air compressor relief. They might open at 120 but they don't shut till much lower, say 90. The drama is the compressor would have still been pumping.

Ordered new idlers, accessory belt and water pump from AF, I figured after the originals have done 220,000km, it's time to replace as a preventative measure.

Originally Posted by josh.huber

Yeah it's on the high side, not internal, vents external. Yeah charging off pressures on a car isn't good practice, in just guessing that's what he did.

Shane in my experience they are kinda like a air compressor relief. They might open at 120 but they don't shut till much lower, say 90. The drama is the compressor would have still been pumping.

Was still venting with the engine off all the way to zero pressure, and even had a stop and start again midway through

Originally Posted by shanegtr

Was still venting with the engine off all the way to zero pressure, and even had a stop and start again midway through

Probably froze, defrosted, then went back to dumping it's guts. The change out isn't that bad.. Few beers.. You'll be right

Originally Posted by josh.huber

Probably froze, defrosted, then went back to dumping it's guts. The change out isn't that bad.. Few beers.. You'll be right

At least with no gas in it it’s a simpler process

Originally Posted by josh.huber

Probably froze, defrosted, then went back to dumping it's guts. The change out isn't that bad.. Few beers.. You'll be right

Agreed, josh, after the control arm saga with captive bolts and no room for spanners, everything else will be easy. I have to take mine to my local ac guru. Cools OK up to around 30 deg ambient, anything over 30 is a struggle, so I think not enough refrigerant in the system. Clutch works fine and no unusual noise from the compressor (yet)

Originally Posted by Eric SDV6SE

Agreed, josh, after the control arm saga with captive bolts and no room for spanners, everything else will be easy. I have to take mine to my local ac guru. Cools OK up to around 30 deg ambient, anything over 30 is a struggle, so I think not enough refrigerant in the system. Clutch works fine and no unusual noise from the compressor (yet)

You’ve said it’s 220,000km. You need a new compressor. It’s just that simple