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Registered User
Join Date: May 2011
Posts: 14
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mixture screw fitment
Hi as I am struggling to get hold of 64750.018 mixture screws for early 911 weber carbs,does anyone know if the 64750.004 that is available for later ones will work.the Idtp 64750.018 is stepped as in the picture at the tip instead of cone shaped like the later ones.can anyone tell me if the cone shaped can be machined down ie are the thread and length the same.
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07-02-2015, 03:19 AM
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Registered
Join Date: Feb 2008
Posts: 1,438
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Doubtful, when installed, the IDTP screws have the same number of turns from closed as the IDA screws. If you put a taper onto the IDTP screws then the screw will fit deeper into the carb body which will nearly allow the spring to compress, especially when using the cup washers under the springs. IDTP mixture screws will work OK but they are much coarser in their ability to adjust mixture strength than IDA screws.
I sell new, steel IDA type mixture screws that are exact to OEM including the knurled head. Contact me via my email address provided on my web site for pricing if interested.
__________________
Paul Abbott Weber service specialist www.PerformanceOriented.com |
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07-02-2015, 07:30 AM
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Registered User
Join Date: May 2011
Posts: 14
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I will try the ida48 64750.007 screws,replacing all 6,thanks for your reply and all the best.
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07-03-2015, 10:09 AM
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Registered
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Quote:
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07-03-2015, 05:30 PM
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Registered User
Join Date: May 2011
Posts: 14
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Can you give me the part number as I have just bought a set of the 48 ida stated above and they are too long
 please
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07-09-2015, 12:52 AM
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Registered User
Join Date: May 2011
Posts: 14
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wrong mixture screw bought.
Me again,I bought the 64750.007 ida 48 screws,should I have gone with the 64750.004 screws.
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07-09-2015, 09:15 AM
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Registered User
Join Date: May 2011
Posts: 14
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im an idiot
Got your message performanceorientated.64750.004 it is.cheers.and Doh!!!!
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07-09-2015, 09:19 AM
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