fuel shut off valve continued to leak ??

   / fuel shut off valve continued to leak ?? #1  

tstex

Platinum Member
Joined
Nov 22, 2010
Messages
546
Location
Alleyton, Texas; Houston, TX
Tractor
1997 Kubota M5400S
Hello to all,

I started a thread to ask questions about my brothers M4900 [See thread link below].

Out of this thread, to eliminate water in fuel, checking the fuel filer bowl often was a suggestion. Well, I have good and bad news.

Turned fuel lever to "off" position, then removed fuel filter/bowl, but a pencil lead size stream of fuel continued to come out. I partially moved the lever back to "on" position to see if it would really flow and it did. I had to work fast in getting the fuel bowl assembly emptied and all back together. The good news is I did not detect any water or other in the bottom.

Any ideas on what the issue could be or a fix? I did have a 5 gal bucket underneath to catch fuel...

Thank you,
tstex

Thread that started this topic:

https://www.tractorbynet.com/forums.../430624-kubota-2000-m4900-engine-problem.html
 
   / fuel shut off valve continued to leak ?? #2  
You could remove the valve and see if turning the handle actually turns the valve completely closed. The other option would be to replace the valve.
 
   / fuel shut off valve continued to leak ??
  • Thread Starter
#3  
When you say remove the valve and determine if closing it actually shuts it off all the way, can you go into more detail? Thanks

I知 trying to avoid replacement.
 
   / fuel shut off valve continued to leak ?? #4  
I think it might have something stuck in it or if you close it to far its open up a little , Maybe a o-ring is leaking ....:2cents:
 
   / fuel shut off valve continued to leak ??
  • Thread Starter
#5  
Thanks Road & Peter...

I知 going to have to pull up the parts diagram & see what痴 all there
 
   / fuel shut off valve continued to leak ?? #6  
A new one is about $70.00 bucks........
 
   / fuel shut off valve continued to leak ?? #9  
I rounded the price up.....:laughing:
 
   / fuel shut off valve continued to leak ?? #10  
Here's a link to the parts list:

Kubota M54 (2wd) Parts Diagrams
it looks like it has 4 o-rings. at one of which most likely is in the valve assembly, it probably went bad, a cheap repair. you can remove the line going into the filter, then use a pencil inserted into that to stop the fuel, then you can disassemble the valve assembly. it looks like 2 screws on the plate around the knob..
 

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