DGAV alternative

[tekenaar]

Saw this synchronous Weber 36DCD7 carb with same footprint as Solex and 32/36 . . . might be nice alternative to the DGAV replacement carbs . . .

[hrcollinsjr]

Originally Posted by tekenaar Saw this synchronous Weber 36DCD7 carb with same footprint as Solex and 32/36 . . . might be nice alternative to the DGAV replacement carbs . . .

More performance oriented for sure. Didn't see signs of a 'normal' choke mechanism. I'm assuming it has a separate cold start enrichment system like a side draft. 36mm bores look like they are closer to the center than the spacing of the 32/36 bores. If this is the case then the top of the manifold might not have to be as heavily massaged. Definitely wouldn't have to open it up as much as a 38DGAS requires.

Harold

[tekenaar]

Originally Posted by hrcollinsjr More performance oriented for sure. Didn't see signs of a 'normal' choke mechanism. I'm assuming it has a separate cold start enrichment system like a side draft. 36mm bores look like they are closer to the center than the spacing of the 32/36 bores. If this is the case then the top of the manifold might not have to be as heavily massaged. Definitely wouldn't have to open it up as much as a 38DGAS requires. Harold

. . . uh, well it would have to be with the same throttle shaft spacing, now wouldn't it! . . . I'd say about 2mm closer [(36 - 32)/2] and even closer by 4mm in addition on the 38DGAS . . .

[hrcollinsjr]

Originally Posted by tekenaar . . . uh, well it would have to be with the same throttle shaft spacing, now wouldn't it! . . . I'd say about 2mm closer [(36 - 32)/2] and even closer by 4mm in addition on the 38DGAS . . .

Okay Otto, I'll give you that one. Let me try again. I try real hard NOT to look at Solex carbs. I thought I remembered that there was a greater distance between the throttle plates on the 32/36 than the Solex more so than dictated by the increased bore size.

Harold

[RallyBob]

Originally Posted by tekenaar Saw this synchronous Weber 36DCD7 carb with same footprint as Solex and 32/36 . . . might be nice alternative to the DGAV replacement carbs . . .

Something about the 'Abarth' name tells me this is rare. And the $777.00 pricetag confirms this!

[hrcollinsjr]

Originally Posted by RallyBob Something about the 'Abarth' name tells me this is rare. And the $777.00 pricetag confirms this!

I thought $550 was high. I didn't notice that was EURO's.

Harold

2000 posts! Time to go finish working on the tractor!

[tekenaar]

Originally Posted by hrcollinsjr More performance oriented for sure. Didn't see signs of a 'normal' choke mechanism. I'm assuming it has a separate cold start enrichment system like a side draft. 36mm bores look like they are closer to the center than the spacing of the 32/36 bores. If this is the case then the top of the manifold might not have to be as heavily massaged. Definitely wouldn't have to open it up as much as a 38DGAS requires. Harold

Correct . . .

[tekenaar]

Originally Posted by RallyBob Originally Posted by tekenaar Saw this synchronous Weber 36DCD7 carb with same footprint as Solex and 32/36 . . . might be nice alternative to the DGAV replacement carbs . . . Something about the 'Abarth' name tells me this is rare. And the $777.00 pricetag confirms this!

. . . did some more checking on DCD carbs and discovered that the much more common "normal" DCD is a 28/36 progressive carb with exposed, external primary/secondary linkage, unlike the enclosed gear segments on the 36DCD7. This makes this particular carb pretty close to a "one-off" built to Abarth specs, like Bob said!

[bigjim5551212]

well. here is my 2 bits worth.

this is a great carburetor. It has some drawbacks

one problem with this carburetor is that it is about an inch taller than a DGAV series carburetor.

they have a starter device similar to the DCOE

The big issue is jet changes. the main jets come out of the side of the carburetor, so you have to pinch off the fuel hose and run the engine so it empties the carb, or you have gas running all over the place.

next, air corrector jets. Not common, however the main jets fit. the emulsion tubes are hard to get.

some carbs have no vacuum advance port.