Webcon UK Ltd

polory · New user Joined: 20 Jun 2009 Posts: 4

i recently bought 2 weber 40 dcom carbs and im rebuilding a little 1300cc engine was hopeing to use them on it , is it possible to use them on a small engine. iv seen people useing dcoe carbs on 1300 engines so i got these asumeing that they'll do the job. any body know much about these carbs ?

bigjim5551212 · Posted: Wed Jun 24, 2009 2:29 pm Post subject:

yes, you can use them. these carbs are different than DCOE. the primary difference is that they use a diaphragm pump mechanism. I think Weber was asked to make a copy of the Dellorto carburetor for a project.
_________________
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

polory · New user Joined: 20 Jun 2009 Posts: 4

oh rite thats good then, was gona say iv not ever seen them up for sale realy so knew they were not as comon as the dcoe

polory · New user Joined: 20 Jun 2009 Posts: 4

also wonderd if there was a linkage kit for them available ?

bigjim5551212 · Posted: Thu Jun 25, 2009 4:50 pm Post subject:

in my opinion I would not use them. I have seen these... I do not know if the webcon linkage will work. anything can be made however
_________________
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

polory · New user Joined: 20 Jun 2009 Posts: 4

oh ic ok thanks for your help

mr. goose · New user Joined: 08 Jul 2009 Posts: 1

I'm using three 40DCOM carbs on a vintage Alfa Romeo inline six (2600cc) and I have spent a lot of time learning about them so I could jet them correctly. (Helps to know DCOEs first.) As far as I can determine the DCOM was made for the Peugeot 205, twin carb version, and I don't know what else. Anyhow, they're not such a problem if you already own them - - otherwise it might be best to buy DCOEs since there's much more experience and information out there.

Having said that I do have one problem with one of the DCOM carbs (bought used), and that is one of the idle air balancing screws is stuck and I cannot adjust it. Solvents won't budge it. That cylinder shows HUGE vacuum when I hook up a mercury column. Now I've discovered that cylinder is not firing at idle, however the progression holes are clear. Hence I have a progression hesitation caused by that cylinder. I have overjetted to lessen it, but that's not the right solution. It is so difficult to get the carbs and the manifold off the engine... I would like to see a diagram of that idle air circuit, like the Weber drawings of old that show how each circuit works in each carburetor. Does anyone out there have, or know of, such a drawing for the DCOM and can lead me to it online? Thanks.

Mr. Goose