Re: [alfa] Weber question

[bearbvd@xxxxxxxxxxxxxx (Greg Hermann)]

At 7:36 PM 10/8/04, Ed & Marsha Prytherch wrote:

The seats of the brass valves (2 per carby)  that open the choke circuit
HAVE  been known to get dirty---

Greg

>My spider is running rich on #1 cylinder. When it started running rough I
>changed out the distributor cap, rotor and spark plugs and when #1 cylinder
>was suspect I checked the compression and switched plug wires between #1 and
>#2 cylinders. The spark plug in #1 is sooty and the exhaust header from that
>cylinder is 100-150 degrees cooler than the other 3 so I think it must be a
>rich mixture. I swapped jet stacks and idle screws between #1 and #2 barrels
>of the carb and the problem stayed on #1. I checked the fuel levels in the
>main jet wells and both carbs are the same and within spec, a bit lower than
>nominal. The fuel pressure regulator is set at 2.5  psig. There is no
>indication of flooding
>
>I suspect the cold start mechanism because I think I have eliminated
>everything else. I made sure that the actuator lever is going all the way to
>the full closed position and I filed a flat on the end stop to let it go a
>bit further. It seems that the next step is to remove the carb and inspect
>the cold start mechanism. Is there anything that I have missed?
>
>The carbs are 40DCOE139's and are mounted on a Euro manifold.
>
>Thanks.
>Ed Prytherch, Columbia SC
>79 Spider
>73 GTV
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