Chraftsman 18hp. twin fuel problem

 We have an 18 hp. twin fuel pump on the side of the carb . It was
working fine and then quit . It appeared that it was lack of gas as it
would start and run as long as you pored the gas in the carb . I
rebuilt the fuel pump and it still wasn't getting fuel . I took the
top off the carb and it was bone dry . I replaced the needle valve and
it still didn't get fuel . This time when the carb was apart I pored
some gas in the bowl and pored gas to the fuel  pump line doing it
several times and turning it over to prime the pump . When I put the
carb back together it started right up and ran good . I took it out to
try mowing with it an again after about 10 minutes it acted like it
was starving for gas . Then it stalled again . Same problem . The fuel
pump seems to be powered by a vacum hose coming up from the
crankcase . Is there anything in the crankcase (filter)or something
that would plug up ? I can feel som air coming out of the hose when I
turn it over . I can suck fuel out of the gas line at the fuel pump
connection from the tank...Any ideas...Rick

 

I don't screw around - I go to NAPA and get a low pressure electric fuel
pump and install that. I haven't had to remove the old diaghram pumps yet -
but when the tanks are low and in the rear I mount the electric pump back
there. The one I installed a couple weeks ago I ran from the light switch
that was no longer used so I can shut it on and off.  Others I have right
from the ignition switch.

 Srgnt Billko wrote:

I've never done that. Have you ever had any problems with the carb
flooding? My concern is that even a low pressure electric pump might
overcome the pressure on the needle from the float.

--
Art

 

No - and my nephew uses the same approach.  He buys and sells - I just
collect.
http://mysite.verizon.net/vzet83bg/tractorguy/

 
Thanks for responding , I'm curious , how many LB. pressure pump do
you use . I kind of would like to figure out the problem . It has
worked flawlessly this way for 25 years .   Rick