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| | | | Joined: Mar 2010 Posts: 79 Wrench Fetcher | | Wrench Fetcher Joined: Mar 2010 Posts: 79 | I had a bad fuel pump on my 235(busted inside or something).Bought a replacement from parts store(Webber brand)but it wont pull the gas from the tank to the carb.I have a new chassis mounted tank,fuel lines,and inline filter going into the carb.When you try and drive the truck you have to keep the choke about half for it to run without stalling.An old gent told me the lobe on the cam could be worn to the point it wont give full travel on the pump lever. Any ideas?
JMH | | | | | Joined: Feb 2009 Posts: 400 'Bolter | | 'Bolter Joined: Feb 2009 Posts: 400 | Did you do a fuel pump test to see if and how much fuel was being pumped,or checked fuel pressure? | | | | | Joined: Sep 2001 Posts: 29,269 Bubba - Curmudgeon | | Bubba - Curmudgeon Joined: Sep 2001 Posts: 29,269 |
After you have done PapaJ's fuel pump test:
Have you checked for vacuum leaks at your carburetor and intake manifold?
| | | | | Joined: Mar 2010 Posts: 79 Wrench Fetcher | | Wrench Fetcher Joined: Mar 2010 Posts: 79 | Gents,
As far as I know I don't have any vacuum leaks.I do have an exhaust leak at the manifold(bad donut).I have not done a pressure test but it will not keep the see through filter full. Only about one third full.If you pull the line from the carb while the truck is running(crazy I know but I am desperate)there is not much pressure.I am going to try a few other things.May need to rebuild the carb.It sat dry for many years.As always thanks for ideas guys.
JMH | | | | | Joined: Jul 2004 Posts: 2,987 'Bolter | | 'Bolter Joined: Jul 2004 Posts: 2,987 | If the carb has not been rebuilt, I would definitely try that first. | | | | | Joined: Dec 2003 Posts: 1,144 'Bolter | | 'Bolter Joined: Dec 2003 Posts: 1,144 | On the 48 John M had replaced the fuel filter with see thru which only shows about a third full, after rebuilding carb replacing fuel line replacingvacum advance assembly and line it runs pretty good, don't go to fast around yard since only have E-brake but it runs fine no spitting and popping on accelration. fuel filter never shows much more than 1/3 full even at high speed no load idle. | | |
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