Webcon UK Ltd Weber Carburettors and Alpha Engine Management    FAQ   Search   Memberlist   Usergroups   Register   Profile   Log in to check your private messages   Log in  Twin 40 DCOE          Webcon UK Ltd Forum Index -> Weber Chat View previous topic :: View next topic   Author Message LeonM New user Joined: 21 Apr 2008 Posts: 7 Posted: Tue Apr 22, 2008 8:50 am    Post subject: Twin 40 DCOE Hello, register finally, after first reading only. I have a Ford preXflow with twin 40 DCOE, and i have 2 questions; When cornering, the engine stalks, like getting no fuel or to much fuel. Just keep the pedal down and it will go again. Mostly when the engine is warm/hot. Can't get it out, checked every possible thing I read in Weber tune-up book, and I read here. I checked the float level (metal=8,0mm), the travel (2mm), replaced needle valves and gaskets (servicekits). Also hear a sound sometimes when driving around 3000 rpm in 4th, first thinking there was a misfire, but it is a typical Weber sound, I used to hear a lot in the good old times when carbs like this where standard on an Alfa. Any suggestions ? Back to top bigjim5551212 Enthusiast Joined: 11 May 2007 Posts: 53 Location: Vancouver Canada Posted: Tue Jun 03, 2008 5:17 am    Post subject: Your fuel pressure could be too high. No more than 3 psi. Maybe your float levels are too high as well. _________________ Jim Hilton Overseas Distributing Vancouver Canada 1-604-879-6288 www.overseas-auto.com www.weberjets.com jim@overseas-auto.com Always on line MSN Messenger z5551212@hotmail.com Back to top LeonM New user Joined: 21 Apr 2008 Posts: 7 Posted: Tue Jun 03, 2008 6:43 am    Post subject: bigjim5551212 wrote: Your fuel pressure could be too high. No more than 3 psi. Maybe your float levels are too high as well. Float level is 8mm, fuel pressure is 2,5 psi (adjustable filter king added) Back to top bigjim5551212 Enthusiast Joined: 11 May 2007 Posts: 53 Location: Vancouver Canada Posted: Tue Jun 03, 2008 4:23 pm    Post subject: what main jets and pump jets do you have ? What is your choke size as well? This could be a richness problem. I think you could start at 120 mains _________________ Jim Hilton Overseas Distributing Vancouver Canada 1-604-879-6288 www.overseas-auto.com www.weberjets.com jim@overseas-auto.com Always on line MSN Messenger z5551212@hotmail.com Back to top LeonM New user Joined: 21 Apr 2008 Posts: 7 Posted: Wed Jun 04, 2008 9:54 am    Post subject: mains 125 F16 155 accl. 40 idle 40F9 chokes 34 Tuned on rolling road, setting everything to best possible, this came out as best. Must say; it runs perfect. Back to top bigjim5551212 Enthusiast Joined: 11 May 2007 Posts: 53 Location: Vancouver Canada Posted: Tue Jul 01, 2008 3:37 pm    Post subject: thats great _________________ Jim Hilton Overseas Distributing Vancouver Canada 1-604-879-6288 www.overseas-auto.com www.weberjets.com jim@overseas-auto.com Always on line MSN Messenger z5551212@hotmail.com Back to top LeonM New user Joined: 21 Apr 2008 Posts: 7 Posted: Tue Jul 01, 2008 3:42 pm    Post subject: bigjim5551212 wrote: thats great It runs perfect, but the problem when cornering is still there.... Back to top Display posts from previous: All Posts1 Day7 Days2 Weeks1 Month3 Months6 Months1 Year Oldest FirstNewest First         Webcon UK Ltd Forum Index -> Weber Chat All times are GMT Page 1 of 1   Jump to: Select a forum Welcome----------------Welcome General----------------The Chat RoomWebcon News Carbs and things----------------Weber ChatSolex ChatAlpha ChatMagneti Marelli ChatTorqmaster Chat Technical----------------CalibrationProjects For Sale or Wanted----------------Weber for saleWeber Wanted Recommendations----------------Weber Suppliers  You cannot post new topics in this forum You cannot reply to topics in this forum You cannot edit your posts in this forum You cannot delete your posts in this forum You cannot vote in polls in this forum Powered by phpBB © phpBB Group. Hosted by phpBB.BizHat.com