weber 40DCOE

Jase · #1 (**permalink**) 09-18-2003, 06:56 PM

I have been looking around for a good pair of 40DCOE webbers for my 73 GTV, when I found a pair in Germany on E-bay

http://cgi.ebay.com.au/ws/eBayISAPI....category=42492

I used altavista's babelfish to translate, and this is what I got :

"Sport carburetor without trouble-prone cold weather starting aid with flat sport air cleaners. The carburetors are in a super condition and can with the suitable bridges for many vehicles be used. Everything goes butter-softly. Four months ago ago still on a XR3 were driven. Like always without guarantee"

Looking at the carbs, they look pretty good, I was wondering if there are all sorts of 40DCOE webers out there, and buying one that didn't come of an alfa might be a problem (other than jetting)?

Do the ones above look compatible with the standard alfa webers?

Jase

magista · #2 (**permalink**) 09-19-2003, 12:37 AM

I'm not a Weber expert but those look pretty good to me.

I have a pair of 40 DCOEs on my Berlina. Also, from what I know Webers can be rebuilt fairly easily so if those ones are crapped out should be too hard to deal with it.

I'm sure others out there know much more about this than I do so don't quote me on any of the above.

**John M** · #3 (**permalink**) 09-19-2003, 01:09 AM

Jase:

There are different 40DCOE Webers out there. They have changed over the years, but not sure how. Maybe Papa will chime in on the changes that have occurred over the years. In addition there are different model numbers of 40DCOEs. From what I understand, the differing model numbers indicate different stock configurations in regards to jetting and chokes, etc. There are 40dcoe18s, 32s, 2s, etc. Also to note is that the XR3 was a 1900 so settings on the carbs should be close. When you get into buying venturis, jets, etc., the cost really begins to add up. So best to inquire as to what the current configuration is prior to bidding. They do look nice. Hope they work out.

Best Regards,
John M

magista · #4 (**permalink**) 09-19-2003, 01:36 AM

See...I know others knew more than I.

Mine are 40 DCOE 32s...

djone101 · #5 (**permalink**) 09-19-2003, 09:09 AM

Jase,

If you're not sure about those, I have a pair of 40 Dellorto's that I've just taken off my '73 2000 GTV parts car. They aren't as clean as the one's in the picture. I'll take some shots at the weekend and post them if you're interested.

**papajam** · #6 (**permalink**) 09-19-2003, 11:41 AM

As far as I known, all 40 DCOEs are physically the same so they should bolt right up your 'Dellorto/Solex' manifold. However, the linkages, as pictured in the ad, will not work. You'll have to find the proper part unless the Dellorto/Solex linkage will fit the Weber throttle shaft. I'd think the jetting should be close enough to get you started.
Regarding John M's question, the only change in the DCOE I'm aware of was the addition of the 'tube' around the mixture screws on the later versions.
John is also correct that the number(s) after DCOE refer to a carb with certain jetting/venturi sizes for a particular application. Magista's 40 DCOE 32s are jetted specifically for a 1750 while a 40 DCOE 72/73 is for a 2l.

Jase · #7 (**permalink**) 09-20-2003, 11:24 PM

Thanks for the feedback guys...

I have decided not to bid on those Webers.

I sent a couple of questions to the seller, and he didn't really fill me with confidence wrt his answers. Also, he quoted me 50 Euros to send them to me in Oz, so the cost comparable to picking up a set here.

Dave: I am quite interested in the Dellortos. I understand that Dellortos and Webers are comparable in performance (though most people prefer the Webers).

Does anyone know if there is actually a major difference in performance between Dellortos and Webers?

Jase

**papajam** · #8 (**permalink**) 09-21-2003, 02:40 PM

Although I have virtually no experience with Dellortos, I think the major difference between the two is not in performance but in parts availability; at least here in the US.

djone101 · #9 (**permalink**) 09-22-2003, 01:55 AM

I agree with Jim, I think the Dellortos and Webers have similar performance, after all they were interchangeable during production of the car.

Jase - sorry I didn't get as far as photographing the carbs this weekend , spent two days carving up the remains of the parts car body and getting rid of it. Now I have room in the garage again I should be able to get to the carbs.

Jase · #10 (**permalink**) 09-22-2003, 01:58 AM

Yeah, from what I understand... it is the Solex Carbs that suck. And that is what I currently have