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RarlyL8 RarlyL8 is offline
Crotchety Old Bastard
 
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Join Date: Jan 2000
Location: Huntsville, AL
Posts: 13,425
Garage
Shannon, here are a few of my favorite hidden sources of vac leaks:
> AAR that does not close all the way
> Throttle Bypass valve with a blown diaphagm
> AAV stuck in the open possition
> Injector blocks with spiderweb cracks
> Loose injector blocks
> Any vac hose that leaves the engine compartment (brakes, boost gage, etc)

Loose injector blocks are commonly overlooked.
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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 03-08-2010, 05:40 PM
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