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Join Date: Oct 2003
Location: Maidenhead, UK
Posts: 8
Weber Carb Reference Query

I would appreciate some advice here.

I have just purchased a set of webers on the basis of them being IDA 3C. However from photographs just sent to me one carb has the refernce no 40 IDTP 3C1 with the number 3847 below it, whilst the other carb has the reference no 40 IDTP 3C with the number 3727 below it.

Can anyone confirm what I have bought!

Thanks

Old 10-24-2003, 05:08 AM
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jluetjen's Avatar
 
Join Date: Oct 2001
Location: Westford, MA USA
Posts: 8,852
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I believe that you bought a set of "T" carbs based on the IDT versus the S version which was IDS. I believe that the 1 after the 3C refers to either the left or right carb.
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John
'69 911E

"It's a poor craftsman who blames their tools" -- Unknown
"Any suspension -- no matter how poorly designed -- can be made to work reasonably well if you just stop it from moving." -- Colin Chapman
Old 10-24-2003, 06:09 AM
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Join Date: Mar 1999
Location: Quebec, Qc, Canada
Posts: 250
IDT VS IDA: Idle Mixture screws have a different tappered end.
IDS VS IDA: High enrichement jet added in the circuit.

Carb bodies are the same between IDT IDA and IDS.

HTH

Marc-André

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Marc-André
Present: 07 997.1 GT3 white, 95 993 coupe Riviera Blue, 72 911E Targa Silver, 68 912 coupe Burgundy, 67 912/911 coupe Black
Past: 98 993 C2S, 98 993 Speedster conversion, 95 993 Cab, 70 914-6 conversion 3.0L Webered
Old 10-24-2003, 06:22 AM
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