WTB: Weber IDA carbs

Hi all,

Looking for a set of the Weber IDA carbs:

40IDA 3C
40IDA 3C1

Prefer the early ones with the S stamped in the front (correct for the first ~500 901/02 S engines)

Thanks Paul for your help and pictures:


Attachment 581777

Attachment 581775

Attachment 581776

Hi Jesse,
I have a set
40IDA3C #4561
40IDA3C1 #4542

Attachment 581778

They have later production numbers than those posted by yourself and are complete with Top Hats, K&N air filters, Throttle linkage bar and new PMO manifolds,

I would have to check if the have the "S" stamping

Attachment 581779



Regards

Quote:

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Originally Posted by NZVW

Hi Jesse,
I have a set
40IDA3C #4561
40IDA3C1 #4542

Attachment 581778

They have later production numbers than those posted by yourself and are complete with Top Hats, K&N air filters, Throttle linkage bar and new PMO manifolds,

I would have to check if the have the "S" stamping

Attachment 581779



Regards

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Thanks Mark, will send you a PM!

Back to the top, still looking!

i have some italian 40IDA 3C’s i’m going to post for sale. i’ll check to see if it has the “S” stamping in the morning.

Quote:

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Originally Posted by Jesse-911E 1969

Back to the top, still looking!

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Jesse, what does the ‘S’ stamping signify?

Not all '67S Type 901/02 engines had 40IDS carbs. The early ones had 40IDAs (until engine #960502).

Quote:

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Originally Posted by Key911

Not all '67S Type 901/02 engines had 40IDS carbs. The early ones had 40IDAs (until engine #960502).

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Indeed, as to how I understood it, engine number 960001 till 960502 had adjusted IDA's (before the IDS carbs came). To mark the difference between normal IDA's and 'S' IDA's there was a small S stamped in the front of the IDA carb.

Quote:

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Originally Posted by Jesse-911E 1969

Indeed, as to how I understood it, engine number 960001 till 960502 had adjusted IDA's (before the IDS carbs came). To mark the difference between normal IDA's and 'S' IDA's there was a small S stamped in the front of the IDA carb.

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Thank you Jesse and Key911 for clarifying the 'S' stamp. Would the Weber IDAs with the 'S' stamping have the high discharge nozzles/squirters installed?

That is the main difference between IDA and IDS, it helped reduce burned pistons.