I have always heard great things about the Pilot but I have never managed to find one in excellent condition and in working order. I recently found one in non working but otherwise excellent condition and after a couple months of scrounging have managed to acquire the parts to rebuild it (I had an Pilot to Air 1 conversion kit but did not want to go that router.) I rebuilt it today and discovered the following:
1. It is a superb second stage, without question the best performing second stage I have ever enountered. Ugly looking, but superb performance.
2. It is not all that hard to work on. I rebuilt it with no access to a manual or schematic - it is pretty logical in how it works and while there are several tiny parts, the over all design is a straight forward servo assisted design. Some stages of the build require some creativity to get the parts installed in the right orientation and while it is beyond basic G250 tech stuff, it is not really difficult to rebuild.
3. I had heard they were very difficult to adjust, but they are not. I must be missing something because all it required was adjusting the lever for minimum play then once the diaphragm was installed, adjusting the knob on the exterior of the diaphragm to get minimum inhalation resistance while ensuring the diaphragm still seals when acting as the exhaust valve. All the rest of the internal parts are what they are and with the exception of venturi adjustement, are not adjustable.
4. The quality of the case is excellent and the quality of the machine work on the internal parts (many of which appear to be stainless steel) is exceptional. I don't think we will ever see that level of quality in a production regulator again.
Heres hoping Scubapro will introduce a Vintage Pilot....but I'm not going to hold my breathe because it would cost a fortune to produce and tech training would be an issue as it is very different in design and function.
1. It is a superb second stage, without question the best performing second stage I have ever enountered. Ugly looking, but superb performance.
2. It is not all that hard to work on. I rebuilt it with no access to a manual or schematic - it is pretty logical in how it works and while there are several tiny parts, the over all design is a straight forward servo assisted design. Some stages of the build require some creativity to get the parts installed in the right orientation and while it is beyond basic G250 tech stuff, it is not really difficult to rebuild.
3. I had heard they were very difficult to adjust, but they are not. I must be missing something because all it required was adjusting the lever for minimum play then once the diaphragm was installed, adjusting the knob on the exterior of the diaphragm to get minimum inhalation resistance while ensuring the diaphragm still seals when acting as the exhaust valve. All the rest of the internal parts are what they are and with the exception of venturi adjustement, are not adjustable.
4. The quality of the case is excellent and the quality of the machine work on the internal parts (many of which appear to be stainless steel) is exceptional. I don't think we will ever see that level of quality in a production regulator again.
Heres hoping Scubapro will introduce a Vintage Pilot....but I'm not going to hold my breathe because it would cost a fortune to produce and tech training would be an issue as it is very different in design and function.