pawnshopmike
Staff member
Looking good Blake.
mustangman40;18340 wrote: The new can Worked flawlessly, no leaks and filled 32oz tank in 76 seconds...
49dimes;18423 wrote: This one (yes its glow) gallon for now and making a 2.5 gallon for gas.
Simple automotive windshield washer pump and parts from radio shack.
Less than 50$ including the can and Miracle switch. 2S 2200 Lipo powers it up.
49dimes;18423 wrote: This one (yes its glow) gallon for now and making a 2.5 gallon for gas.
Simple automotive windshield washer pump and parts from radio shack.
Less than 50$ including the can and Miracle switch. 2S 2200 Lipo powers it up.
49dimes;18437 wrote: The pump is resin formed polycarbonate plastic and it is a "sealed" housing to prevent air and vapors from entering the motor.
No gears here...Impeller. The geared pumps are positive displacement and normally self prime very easily. Centrifugal impellers used in this pump do cause a low suction head to develop and therefore prime themselves as long as the gas can is vented to atmosphere and the suction head does not exceed 4" or so in height. The impeller itself is nylon and will withstand ( like the polycarb housing) harsh detergents such as alcohol, benzenes, petroleum distillates. I have a 2.5 gallon can that I used to trial this pump and it has performed well for over 2 years being submersed inside the can ( first filled with kerosene (1month) and then gasoline going on over 2 years). I [SIZE= 13px]expressly[/SIZE] do not recommend anyone to trial as I did for the very reasons you mention (volatile vapor). The pump unit does hold up and I want to make one where there is no current flow inside the can. I have made apparatus specifically for my trial pump that limits how current is applied to the motor and prevent arcing. As I stated earlier with the impeller; self prime is the obstacle to over come here for centrifugal impellers normally need a positive suction head to work. My Alcohol version performs quite well. Once I am finished with the gas version I will post it.