Don S
Honorary Moderator Emeritus
- Joined
- Aug 31, 2004
- Messages
- 62,321
Re: Update
Re: Update
That "Scratching" sound is the antisiphon valve working, and exactly why you can't blow back into the tank. It's there to prevent a siphon starting if the hose fall off the pump and drops below the tank.
May be you have water in your tank and pumping water and not gas.
I would strongly suggest you get a water seperating fuel filter and install it between the tank and fuel pump, and determine if you are getting gas or water out of the tank.
Re: Update
That "Scratching" sound is the antisiphon valve working, and exactly why you can't blow back into the tank. It's there to prevent a siphon starting if the hose fall off the pump and drops below the tank.
couple ounces of fuel down the carb throat will start it, but will only run for 2-3 seconds tops.
May be you have water in your tank and pumping water and not gas.
I would strongly suggest you get a water seperating fuel filter and install it between the tank and fuel pump, and determine if you are getting gas or water out of the tank.