Drain Fuel tank on a 85 Blazer?

[garydan]

I can't get the siphon line into the tank, so I need to find another way. I don't have a fuel pump (right..since its not TBI??)

Can I hook a siphon up to one of these lines on the passenger side frame rail? If so which one?

 

[lak2004]

You dont have an electric pump but you do have a mechanical pump of the engine block, passenger side. You could pull the line from that pump to the carb and put it into a fuel can and start the engine until it runs dry. Or you could siphon directly from the tank.

 

[garydan]

You could pull the line from that pump to the carb and put it into a fuel can and start the engine until it runs dry. Or you could siphon directly from the tank.

Well you wouldn't be able to start the engine, and if your suggesting to crank the motor until the fuel tank is empty... that might take some time and a few batteries

As mentioned in my first post, I can't seem to get a tube down into the tank, it gets hung up on a bend somewhere.

Any other suggestions?

 

[4X4HIGH]

A carbed engine will run for a while idling with no fuel pump since there is still fuel in the carb bowl. With the fuel pump output line disconnected and starting the engine will create a siphon on the tank and once the engine dies the tank should continue to siphone the fuel out. It would be best if you parked the truck so that the rear is higher than the front to keep the siphon going.

 

[garydan]

A carbed engine will run for a while idling with no fuel pump since there is still fuel in the carb bowl. With the fuel pump output line disconnected and starting the engine will create a siphon on the tank and once the engine dies the tank should continue to siphone the fuel out. It would be best if you parked the truck so that the rear is higher than the front to keep the siphon going.

OK, that makes sense. Could I also connect my vacuum pump to one of the lines pictures in my first post and then siphon from that once it gets going? If so... which of those 3 lines?

 

[frankin5]

should be the large or 3/8" line.