Engine dehydrator
Posted: Mon Jan 06, 2014 10:20 pm
I have just finished the latest modification of a pump powered engine crankcase drier. This version has a pond pump that pumps 100 liters per minute, up from the original pump that pumped 7 liters per minute. And I have switched to a bigger particle size for the desiccant which is still silca gel. The current particles are 3-5 mm and when they change color I have a small toaster oven in the hangar I can put them in at 350F for 2-3 hours to remove the water. The biggest difference I have seen so far is the ambient air being 99% in the hangar and the recycled air inside of the system at 31%. Before I started pumping the air the readings were lower but that was static air. Still seems like a good improvement though.
I push the air through the exhaust pipes and the oil breather tube and pull it back to the dehydrator through the dipstick tube. The choice of the direction was based on the fact the dipstick tube is the highest point and after shut down I always pull the dipstick as the engine cools to let the moisture escape. The connections are rubber stoppers with brass hose barbs, nylon hose barbs and the threaded pipe used to hold a table lamp together.
I push the air through the exhaust pipes and the oil breather tube and pull it back to the dehydrator through the dipstick tube. The choice of the direction was based on the fact the dipstick tube is the highest point and after shut down I always pull the dipstick as the engine cools to let the moisture escape. The connections are rubber stoppers with brass hose barbs, nylon hose barbs and the threaded pipe used to hold a table lamp together.