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Early_S_Man Early_S_Man is offline
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Join Date: Dec 1999
Location: TX USA
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Porsche Crest

Jay,

1. Either way works, and any such variation in gap will only cause a slight ticking noise, not roughness in running.

2. & 4. If carbon was the problem ... it has probably been moved, crushed, or blown out by now, so a compression test would probably not find a problem now! The excessive clearance after you adjusted is probably the only problem, now, so just go through the valves again to find the one loose one ... yes, you can jack up one side to minimize oil loss on that side.

3. If still causing a problem, carbon can be cleared by pouring an ounce of liquid Berryman's B-12 Chemtool down an injector stack and letting the engine sit for an hour. Several Pelicanheads have cleared up major compression loss problems cause by carbon by using my "B-12 treatment" procedure. It is the solvent recommended by the factory [in the "blue book," a.k.a. Check, Measure, Adjust] for cleaning the warm-up thermostat, idle passages in injector stacks, etc. You will find the documents at the following Pelican page useful in learning and adjusting the MFI system:

http://www.pelicanparts.com/techarticles/911_MFI/TipMFI.htm

5. You don't need to worry about having to take the car to a shop ...

Good luck!
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1973 911S Targa ... 'Annie'
1968 340S Barracuda ... 'Rolling Thunder'

Last edited by Early_S_Man; 02-02-2004 at 06:20 PM..
Old 02-02-2004, 06:17 PM
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