Fuel tank/pickup question
Posted: Tue Aug 14, 2018 9:07 pm
A few questions on fuel tank and pickup, first some background. I've been troubleshooting runability issues on my new to me 28 express with single 318. I've got it running reliably after fixing numerous issues, carb, timing, comdenser, wiring and a weak coil among some other things. Once I had it running well I found that it will run out of fuel above 2500 rpm. I pulled the fuel pick up out and the bottom of the copper pipe that sucks up the fuel was literally corroded away so badly that it was all sucked/caved in on itself and looked like Swiss cheese for all the small holes in it. It fell apart as soon as I touched it. There in lies the first question....
How far from the bottom of the tank should this tube be? I measured the tank and made up a new pickup pipe and left about 1/4 inch gap between the pipe and bottom of tank, at least that's what my measurement tells me.
Second question.... is there a good way to clean out the steel tank or should I just replace? I am getting constant rust out of the tank and it will actually plug the pick up at times. Since replacing the fuel pick up I can pull 3600 rpm and still be slowly gaining speed/rpm but it will still run out of fuel eventually. When I back out of the throttle it will stay running and if I blow back through the line there is a lot of resistance at first. Between that and the amount of crud in my rock catcher fuel filter I figure my pickup tube is just plugging up.
3rd question. Anyone replaced the tank on a 28 express? I'm looking for as close to plug and play as possible, and it appears I could get the old tank out through the rear deck hatch. If that's the case I would like to find something very similar in dimension so I could replace without pulling the deck up. Mine is the round steel tank, 65 gallon I believe.
Thanks in advance for any and all help.
How far from the bottom of the tank should this tube be? I measured the tank and made up a new pickup pipe and left about 1/4 inch gap between the pipe and bottom of tank, at least that's what my measurement tells me.
Second question.... is there a good way to clean out the steel tank or should I just replace? I am getting constant rust out of the tank and it will actually plug the pick up at times. Since replacing the fuel pick up I can pull 3600 rpm and still be slowly gaining speed/rpm but it will still run out of fuel eventually. When I back out of the throttle it will stay running and if I blow back through the line there is a lot of resistance at first. Between that and the amount of crud in my rock catcher fuel filter I figure my pickup tube is just plugging up.
3rd question. Anyone replaced the tank on a 28 express? I'm looking for as close to plug and play as possible, and it appears I could get the old tank out through the rear deck hatch. If that's the case I would like to find something very similar in dimension so I could replace without pulling the deck up. Mine is the round steel tank, 65 gallon I believe.
Thanks in advance for any and all help.