1998 5.0 liter GL, volvo-penta engine, charcoal with SX outdrive on a Larson 215 Hampton.
I'm trying to drain 40+ gallons of 5 year old gas from my tank. I've tried to pass every sort of tube I can down the fill tube and can't get anything to pass through due to a 90 degree turn in the fill tube about halfway to the tank. I disconnected the gas line from the tank to the carburetor and attached a short length of tube and a small hand-pump from Sears (used for siphoning gas). The pump works OK although a bit slow. While I'm pumping, I hear a vibrating noise from the area where the gas line is exiting the tank. I believe there may be a one-way valve or something there and I'm wondering if I'm damaging it in some way by pumping the gas out faster and under more pressure than would be normal under engine operating conditions? Any advice is greatly appreciated before I continue with removing all the old gas in this manner.
I'm trying to drain 40+ gallons of 5 year old gas from my tank. I've tried to pass every sort of tube I can down the fill tube and can't get anything to pass through due to a 90 degree turn in the fill tube about halfway to the tank. I disconnected the gas line from the tank to the carburetor and attached a short length of tube and a small hand-pump from Sears (used for siphoning gas). The pump works OK although a bit slow. While I'm pumping, I hear a vibrating noise from the area where the gas line is exiting the tank. I believe there may be a one-way valve or something there and I'm wondering if I'm damaging it in some way by pumping the gas out faster and under more pressure than would be normal under engine operating conditions? Any advice is greatly appreciated before I continue with removing all the old gas in this manner.