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Re: Jet question

To: Ken Strayhorn <ken@dukecomm.duke.edu>, spitfires@autox.team.net
Subject: Re: Jet question
From: Dave Chu <dave@ece.concordia.ca>
Date: Fri, 01 Sep 2000 16:36:42 -0400


In message <v03110701b5d5490eb2f5@[152.3.224.80]>you write:
>Dave -

  Sorry for the delay in responding to your messamge, it has been a
  busy day at work.  School starts on Tuesday and we have lots of
  things to finish.
>
>I have a 72 MkIV that runs a bit rough, and I think
>I have the wrong jets on the carb. The previous owner
>left a set of carb rebuild kits in the trunk (unopened,
>at least) but there's no indication of which is the
>front and which is the back.
>
>However, by using a set of needle gauges, I've discovered
>which jet is the larger of the two. So my question
>is: which carb gets the large jet, and which one gets
>the smaller jet.
>

   Both of the jets should have the same inner diameter .09".  I don't
   know what the difference between the proper front and rear jets are
   but one is red and the other black.  Here are their parts numbers:
   
  AUD9104 (Front)
  AUD9103 (Rear)

>The needles are AN, which I believe are correct for
>a pair of '69 SU carbs now being used on a '72
>1300 engine.
>

  The proper needles with the HS2 and your 1300 engine is BO, the AN
  needles is for the 1500 engine.  I still have the BO needles from 
  my conversion, once you have the jets sorted out and if you are still
  having problems with the AN needles, just let me know.  I can sent
  you my BO needles to see if that will fix the problem.  Good luck.

Dave                                                  |\ |     | |      
_______________________________________/\  /\  /\_____| \|_____| |____________
Dave Chu                                 \/  \/       | /|     | |  
Dept. of Elec. & Comp. Eng.                           |/ |     | |      
Concordia University              Voice:(514)848-3115   Fax:(514)848-2802 
1455 de Maisonneuve W. H961       Email:dave@ece.concordia.ca
Montreal, Quebec, Canada H3G 1M8  http://www.ece.concordia.ca/~dave/addr.html
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