Forums36
Topics40,965
Posts558,013
Members18,506
|
Most Online3,612 Jan 10th, 2023
|
|
12 members (Sunil, JoshMI, gautprod, Jason D, Theo Gallus, Shorthose, rjackson, Bobbss, John Folchetti, Lake8, LeighAnn, FishinRod),
1,233
guests, and
180
robots. |
Key:
Admin,
Global Mod,
Mod
|
|
|
Joined: Sep 2007
Posts: 105
Lunker
|
OP
Lunker
Joined: Sep 2007
Posts: 105 |
HI all, I have a Bobcat 963G, runs great and does a lot of work in a short time. Ive been clearing trees and popping stumps, bouncing around quite a bit. The other day it appeared that I ran out of diesel with a quarter tank showing on the meter. I believe it holds 10 gallons or so. I filled the tank and fired it up. (easiest diesel Ive started after running out of fuel) Problem is, is that it seems to run out of fuel at 3/4 tank so every couple of hours I need to top it off. (about 2.5 gallons) Anyone have any idea what might be going on??? Thanks, Phil
|
|
|
|
Joined: May 2004
Posts: 13,975 Likes: 277
Moderator Lunker
|
Moderator Lunker
Joined: May 2004
Posts: 13,975 Likes: 277 |
Phil:
I assume that when this happens, you can only add 7.5 gallons before overflowing the tank?
"Live like you'll die tomorrow, but manage your grass like you'll live forever." -S. M. Stirling
|
|
|
|
Joined: Dec 2006
Posts: 2,086
Lunker
|
Lunker
Joined: Dec 2006
Posts: 2,086 |
Phil Its not the gauge because you still have fuel in there so it has to be one of 2 things.1)your fuel pump is weak and wont pick up the fuel..not likely.2)your fuelline is cracked and sucking air instead of fuel.If thats the case slip a piece of hose over it clamp at both ends and go back to work.Dont forget to ck the fuel filter good luck
I subscribe Some days you get the dog,and some days he gets you.Every dog has his day,and sometimes he has two!
|
|
|
|
Joined: Sep 2007
Posts: 105
Lunker
|
OP
Lunker
Joined: Sep 2007
Posts: 105 |
Phil:
I assume that when this happens, you can only add 7.5 gallons before overflowing the tank? HI Theo, I can only add about 2.5 gallons before it overflows, which makes this so confusing. The tank is impossible to reach without tearing off the cab, or yanking the engine. I might be able to pull the radiator, that might be easier. They don't give you much room to work on these things. Other thing which is puzzling, is the tank has to be full for the engine to prime, otherwise its squishing air in the prime ball. Hope its something easy.
|
|
|
|
Joined: Sep 2007
Posts: 105
Lunker
|
OP
Lunker
Joined: Sep 2007
Posts: 105 |
Phil Its not the gauge because you still have fuel in there so it has to be one of 2 things.1)your fuel pump is weak and wont pick up the fuel..not likely.2)your fuelline is cracked and sucking air instead of fuel.If thats the case slip a piece of hose over it clamp at both ends and go back to work.Dont forget to ck the fuel filter good luck Thanks Tom, I will look into that.
|
|
|
|
Joined: Jul 2006
Posts: 4
Fingerling
|
Fingerling
Joined: Jul 2006
Posts: 4 |
Other thing which is puzzling, is the tank has to be full for the engine to prime, otherwise its squishing air in the prime ball.
Hope its something easy. It's more telling than puzzling. Look at your fuel tank, does the return line go back in about 1/4 of the way down? If so, I'd be looking at any check valves in the fuel system. It sounds like it might be sucking air back through the return somehow or the priming pump is leaking.
|
|
|
|
Joined: Sep 2007
Posts: 105
Lunker
|
OP
Lunker
Joined: Sep 2007
Posts: 105 |
Other thing which is puzzling, is the tank has to be full for the engine to prime, otherwise its squishing air in the prime ball.
Hope its something easy. It's more telling than puzzling. Look at your fuel tank, does the return line go back in about 1/4 of the way down? If so, I'd be looking at any check valves in the fuel system. It sounds like it might be sucking air back through the return somehow or the priming pump is leaking. Thanks MarlandS, No leaks that can be found. We were thinking along the same lines as a return line, with something wrong with the primary. I have been bouncing around with this thing quite a bit, so something could have come loose. This thing is a Moose of a Bobcat, and had a pretty pampered life in Florida on flat pavement loading orange peels on trucks for a year or so. I believe we have it to some sort of air leak, or draw problem. Tank and hoses are buried deep within. It takes 15-20 minutes just to get the battery out. They sure crammed a bunch of stuff in a small place. I'll get it fixed. Thanks.
|
|
|
|
Joined: Aug 2007
Posts: 123
Lunker
|
Lunker
Joined: Aug 2007
Posts: 123 |
Phil, I hada similar problem with my John Deere Skid loader. I contacted a local Service senter and they recommended changing the fuel filter and/or gas cap. I replaced the filter and it has been fine since.
Dreaming of the pond!
|
|
|
Moderated by Bill Cody, Bruce Condello, catmandoo, Chris Steelman, Dave Davidson1, esshup, ewest, FireIsHot, Omaha, Sunil, teehjaeh57
|
|