763 Fuel Problem

[turbomoparboy]

After 2 years of working on my 94 763 I finished it and decided to trailer it back home. I started it and while driving it towards the trailer it felt like it ran out of fuel so I turned it off and opened the door, the primer bulb was sucked in. If I let it sit for a few minutes the bulb would slowly fill up and it would start enough to move it a little. Anyway I removed the fuel line at the primer that goes to the tank. The primer was working properly, It appears there is a restriction between the primer and the fuel in the tank. Can i blow into the tube or is there a check valve in the tank? Is it possible to remove the pickup tube from the tank without removing the hydraulic pump or engine? Thanks! Justin

 

[donald73d]

Could there be chunks of stuff in the fuel tank causing the pickup to clog. Have you searched this forum for "763" and "fuel" or "pickup"? On my 843 I noticed on the fuel sender I replaces that the float looked like its corners were gnawed at a little. I am assuming there are some small pieces of the float in my tank. But I do not have the problem you mention.

 

[7LBSSMALLIE]

ther is acheck ball on pickup screen if you need to get off trailer anto sop fill a jug with clean fuel and remote tank it , if you just did a rebuild and want to put to bed, drain and flush tank replace pick up and all fuel lines and sender, will give you years of service from here on out ,

 

[turbomoparboy]

ther is acheck ball on pickup screen if you need to get off trailer anto sop fill a jug with clean fuel and remote tank it , if you just did a rebuild and want to put to bed, drain and flush tank replace pick up and all fuel lines and sender, will give you years of service from here on out ,

I pulled it apart today and the pickup tube broke in the tank. It looks like it was just a piece of fuel line. Can I just use a fuel line and put a inline fuel filter? Is the check valve necessairy on these? I am asking because I believe I read where people just used a fuel line. I also decided to drain the tank so I can refill with fresh fuel. Are there any tricks in installing the drain plug in the tank? I am afraid of putting too much pressure on the tank and it cracking or damaged from it being old. Thanks, Justin

 

[donald73d]

I pulled it apart today and the pickup tube broke in the tank. It looks like it was just a piece of fuel line. Can I just use a fuel line and put a inline fuel filter? Is the check valve necessairy on these? I am asking because I believe I read where people just used a fuel line. I also decided to drain the tank so I can refill with fresh fuel. Are there any tricks in installing the drain plug in the tank? I am afraid of putting too much pressure on the tank and it cracking or damaged from it being old. Thanks, Justin

Is it an anti-siphon valve in the tank? Boats have these. If your fuel line developed a crack it might drain the entire tank into the bilge. The anti-siphon requires a little suction to allow it to open. Or it could be a one way valve preventing fuel from going back into the tank through the fuel line. There may be a reason for that I am not aware of.

 

[7LBSSMALLIE]

Is it an anti-siphon valve in the tank? Boats have these. If your fuel line developed a crack it might drain the entire tank into the bilge. The anti-siphon requires a little suction to allow it to open. Or it could be a one way valve preventing fuel from going back into the tank through the fuel line. There may be a reason for that I am not aware of.

dude parts are relitifity cheap after a two year rebuild. do it once do it right. should have no more issues. .ever///

 

[turbomoparboy]

dude parts are relitifity cheap after a two year rebuild. do it once do it right. should have no more issues. .ever///

Got it back together. I got all of the parts from the delear. Thanks!