Weber 33 DCOA CARBURETTORS 750cc OSCA? - Alfa Romeo Bulletin Board & Forums

 
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post #1 of 5 (permalink) Old 02-23-2017, 08:58 AM Thread Starter
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Weber 33 DCOA CARBURETTORS 750cc OSCA?

Hi all, can anyone give me some guidance as to the value of a pair of Weber 33 DCOA carbs?

I believe they may have been fitted to a 750cc OSCA.

Thanks in advance.

Robin
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post #2 of 5 (permalink) Old 02-23-2017, 10:45 AM
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Lovely things ... almost worth buying something appropriate to fit them to! No idea about price. I missed this set of Weber 36 DR3 a couple of years ago, which were inexpensive at about 1300 for all three.

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to all parts I have advertised on the BB so far. Plenty more! Just ask.
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post #3 of 5 (permalink) Old 02-24-2017, 02:47 AM Thread Starter
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Hi Alex, thanks for the info.

Kindest regards

Robin
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post #4 of 5 (permalink) Old 03-01-2017, 07:36 AM
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Weber dcoa/3

Hello Robin,
Had a pair recently of 32's, similar to the set that you have.
They went on an Osca sports racer, I think it was a 750S or something like that.
Also were used on Lancia formula Jr and Moretti formula jr's.
May help with your research on the 33's.
DB
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post #5 of 5 (permalink) Old 04-28-2017, 12:33 AM
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Weber 33DCOA3

Weber catalogued these carburetors for the OSCA Formula Junior (modified Fiat 1100 engine) and a pair has also been seen on a DeTomaso "Isis" Formula Junior, the engine of which may well have been prepared originally by the Maserati family enterprise working under the OSCA name. These carburetors have a narrower bolt-pattern & bore-center spacing (roughly 3 inches) than the normal "small" DCO3 carburetors which are spaced at roughly 3 1/4 inches.
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