For a while now... My air tank has been leaking down through the valve block vent. It's causing the compressor to short cycle. I tore the solenoid at the vent end down and checked it out. The diaphragm is in good condition with just a small permanent indentation where the diaphragm sits against it's seat. Also checked the check valves and they're looking good.
I was fiddling with it yesterday and unscrewed the little exhaust vent filter (inboard exterior on the EAS casing). I placed my finger over the hole in the block where the filter screwed in to check for air leaking by. With the compressor running there was no leak. When the compressor shuts off there is a simultaneous sharp bang of air escaping, then a slow leak, till the compressor starts again. If I hold my finger tight to the hole (when leaking) the leaking stops when I pull it away. I'm thinking there's something going on with the diaphragm solenoid as it's a "balance" type and the backpressure that I'm creating when plugging the hole is allowing it to seat properly.
During all this I got looking at the little vent filter. There's a screw in one end of it which doesn't seem to hold it together, but rather hold something internal to it in place. I can't get the little filter apart. Here's my question:
Does this little vent filter contain some gadgetry inside of it? Perhaps to provide a little back pressure to allow the solenoid to seat properly? :think:
I was fiddling with it yesterday and unscrewed the little exhaust vent filter (inboard exterior on the EAS casing). I placed my finger over the hole in the block where the filter screwed in to check for air leaking by. With the compressor running there was no leak. When the compressor shuts off there is a simultaneous sharp bang of air escaping, then a slow leak, till the compressor starts again. If I hold my finger tight to the hole (when leaking) the leaking stops when I pull it away. I'm thinking there's something going on with the diaphragm solenoid as it's a "balance" type and the backpressure that I'm creating when plugging the hole is allowing it to seat properly.
During all this I got looking at the little vent filter. There's a screw in one end of it which doesn't seem to hold it together, but rather hold something internal to it in place. I can't get the little filter apart. Here's my question:
Does this little vent filter contain some gadgetry inside of it? Perhaps to provide a little back pressure to allow the solenoid to seat properly? :think: