View Single Post
RarlyL8 RarlyL8 is offline
Crotchety Old Bastard
RarlyL8's Avatar
Join Date: Jan 2000
Location: Huntsville, AL
Posts: 13,558
Yes, I would expect that adjusting the CIS to compensate for a vac leak would lead to a lean condition once the leak is fixed.

Do you have a Gunson Gas Tester? You need some way to know where you are now.
How far did you turn the idle mixture screw on the fuel head to compensate for the leak? The typical range of adjustment is very fine, say less than 1/2 turn or 180 degrees.
Adjustments should be made from lean to rich and then back off.
RarlyL8 Motorsports / M&K Exhaust - 911/930 Exhaust Systems, Turbos, TiAL, CIS Mods/Rebuilds
'78 911SC Widebody, 930 engine, 915 Tranny, K27, SC Cams, RL8 Headers & GT3 Muffler. 350whp @ 0.75bar
Brian B. (256)536-9977 Service@MKExhaust Brian@RarlyL8
Old 03-15-2008, 11:56 AM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #9 (permalink)