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| Weber carb leaks LOTS of fuel http://ducatipaso.org/forum/viewtopic.php?f=1&t=4586 |
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| Author: | BARONROJO [ Tue Feb 08, 2011 8:34 pm ] |
| Post subject: | Weber carb leaks LOTS of fuel |
Hi pals, After 6 and a half years abandoned at the bottom of my garage, las summer I decided to take my good old Paso on the road again. I started an ordinary revision but I found that there was oil into de combustion chambers. After looking for the right parts here and there I was finally able to rebuild to new the whole upper end of my engine (heads, valves, segments, cilynders.... Saturday it started fine but the fuel tap leaked and I repaired it with the right O-rings. But today I started it again..... at first it worked fine but after a few minutes problems started... as far as I've been able to see, my weber leaks fuel into the engine (just through the right barrel) and floods everything. Last time I use my Paso, the carb worked quite right, so... What might be the problem? Any ideas? Float problem? over pressure from pump? When I turn the ignition key to "on" I hear a bubbling sound of fuel leaking into the carb. After removing ths spark plugs I checked they were very wet and there were lots of fuel into the cilynders (I pumped it out usin the starter) Thank you in advance for your help, I'm quite a confident mechanic but I have very little knowledge of Webers. |
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| Author: | paso750 [ Tue Feb 08, 2011 8:46 pm ] |
| Post subject: | Re: Weber carb leaks LOTS of fuel |
did you rebuild and clean the Weber ? You may have dirt deposits in the float chamber from when the fuel evaporated over time. I guess the float valve isn`t closing properly. G. |
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| Author: | higgy [ Tue Feb 08, 2011 11:20 pm ] |
| Post subject: | Re: Weber carb leaks LOTS of fuel |
As G suggested, clean out your float bowl replace the needle and seat and top gasket. Better yet get your self some carb cleaner and clean out everything and replace all those o-rings and don't forget to change the oil  rebuild kits are cheap.If you have time they are extra cheap from Alfa1750's ebay store Regardless of where you hail from 
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| Author: | BARONROJO [ Wed Feb 09, 2011 6:27 am ] |
| Post subject: | Re: Weber carb leaks LOTS of fuel |
Guess what? After a whole night of sleep, I've wokwn up and I've arrived at the same conclusion: It must be the float needle valve which leaks fuel. It happened with the fuel tap too, so I think it's normal after 6+ years..... Thank you!!!! |
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| Author: | BARONROJO [ Sun Feb 20, 2011 11:14 am ] |
| Post subject: | Re: Weber carb leaks LOTS of fuel |
Thank you both, guys. I did as you said and the bike runs now perfectly. Well, I've performed no road test but everything else seems in good condition. After 6,5 years and a engine upper section bebuild, she has started perfectly and turns smoothly. Next week I'l get her insuranced and on the road again!!!!!!
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| Author: | ducapaso [ Tue Feb 22, 2011 1:50 pm ] |
| Post subject: | Re: Weber carb leaks LOTS of fuel |
Just to be sure about yuor work: you put new timing belts? 
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| Author: | BARONROJO [ Thu Feb 24, 2011 10:29 am ] |
| Post subject: | Re: Weber carb leaks LOTS of fuel |
Sure I did Nicola!!!! (But thank you anyway!) As I told before, I'm quite a competent mechanic. I leave you a sample of my work published on internet for the maintenance of a Ducati... It's in spanish but the pictures are nice and you, being italian, can understand it more or less. You must click on the different chapters to visit them: |
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| Author: | Tamburinifan [ Thu Feb 24, 2011 11:38 pm ] |
| Post subject: | Re: Weber carb leaks LOTS of fuel |
Looks like you need to register, could you post a pic? |
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| Author: | BARONROJO [ Thu Mar 03, 2011 11:48 am ] |
| Post subject: | Re: Weber carb leaks LOTS of fuel |
It works through this link! |
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