SurfLung
Contributor
Here's a Video of my little "AERO"...
- This is a 1980s era Aerotecnica Coltri MCH-6 scuba compressor. Over the summer I have been learning it, repairing it, upgrading it, restoring it, and for the last month or so... USING it extensively.
- Here's what was done:
1. The Briggs and Stratton engine was gummed up with bad old gas... Tank had to be cleaned. Carburetor screens cleaned. Carburetor gaskets and gas pump diaphragm replaced. Hose clamps replaced for a good seal. I've been running it on AVGAS which will not varnish and (I think) probably dissolves and cleans up the old varnish as it runs. The Briggs and Stratton now runs like a top.
2. The compressor ran fine right from the start. But the dissipator in the moisture condensation tower was broken. I tried various DIY fixes that helped some. But my latest idea seems to be the cats meow. Moisture removal at the tower seems to be at least as good as new compressors now.
3. The remote air intake hose was made from a Solberg filter and re-enforced hose from the hardware store. Its stiff enough not collapse from suction and there are no funny smells or tastes.
4. The PMV or Back Pressure Regulator was added to enhance moisture condensation like modern compressors. AND I am using Lawrence Factor pre-packed filters with a blue test strip for monitoring filter life. The original filter had nothing but charcoal. These LF filters are 60% 13X Sieve for moisture absorption plus 20% hopcalite for CO conversion and 20% activated charcoal to eliminate tastes and smells.
- This is a 1980s era Aerotecnica Coltri MCH-6 scuba compressor. Over the summer I have been learning it, repairing it, upgrading it, restoring it, and for the last month or so... USING it extensively.
- Here's what was done:
1. The Briggs and Stratton engine was gummed up with bad old gas... Tank had to be cleaned. Carburetor screens cleaned. Carburetor gaskets and gas pump diaphragm replaced. Hose clamps replaced for a good seal. I've been running it on AVGAS which will not varnish and (I think) probably dissolves and cleans up the old varnish as it runs. The Briggs and Stratton now runs like a top.
2. The compressor ran fine right from the start. But the dissipator in the moisture condensation tower was broken. I tried various DIY fixes that helped some. But my latest idea seems to be the cats meow. Moisture removal at the tower seems to be at least as good as new compressors now.
3. The remote air intake hose was made from a Solberg filter and re-enforced hose from the hardware store. Its stiff enough not collapse from suction and there are no funny smells or tastes.
4. The PMV or Back Pressure Regulator was added to enhance moisture condensation like modern compressors. AND I am using Lawrence Factor pre-packed filters with a blue test strip for monitoring filter life. The original filter had nothing but charcoal. These LF filters are 60% 13X Sieve for moisture absorption plus 20% hopcalite for CO conversion and 20% activated charcoal to eliminate tastes and smells.
