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Crotchety Old Bastard
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930 WUR Troubles- Adjust Screw? (Pix)
Hey all.
I'm having a cold start issue with my 930 CIS. You must crank on it for about a minute before it starts. After a rough few seconds it acts normal. I say acts normal, but it is not. The A/F ratio is lean accept for on-boost events which show normal readings. This has been confirmed by the A/F meter and a Gunson Gas Tester. Everything I have read points to the WUR. I purchased a used one (thanks 350HP930) and am sad to report no change. I plan to purchase pressure testing equipment next. ANYWAY, I digress. What I wanted to show you was a picture of my stock '78 WUR next to the recently purchased '86 WUR. Both units have the same Bosche numbers on them with mine being made in France and the other in Germany. Why does mine have an adjustment screw? Is this stock? (You can see it at the bottom of the WUR) The head of the screw has been painted red on one corner corresponding to a red mark on the set nut. 
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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 |
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04-09-2005, 12:52 PM
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Slumlord
Join Date: May 2001
Location: Canada
Posts: 4,983
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Yours has been modified. Do a search under WUR and username PBH, you'll find instructions and results of modifications.
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04-09-2005, 01:24 PM
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78 Porsche 911SC 3.0L, 3.3Turbo soon. 
