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Registered
Join Date: Dec 2006
Location: Louisville, CO
Posts: 148
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911 sc engine stumble
A friend of mine has a 78 sc that has an engine stumble at 2200 rpm. I think it started about the time that a lot of ignition system work was being done. The distributor was rebuilt by a racing group, could they have done anything in the rebuild of the distributor that would cause this? Any other thoughts? Thanks.
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12-17-2006, 03:44 PM
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Registered
Join Date: Dec 2004
Location: Suwanee, GA
Posts: 690
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I can think of a lot of things that could cause this.
Injectors, cap rotor, spark plugs, wires etc. or maybe the timing? Just throwing ideas out there.
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1982 Porsche 911SC Coupe - Factory Short Shift |7:31 R&P in AL case | Toyo RA1 Tires | Corbeau TRS seats | M&K 2 in 2 out muffler |
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12-17-2006, 04:56 PM
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Registered
Join Date: Dec 2006
Location: Louisville, CO
Posts: 148
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all of those things have already been looked at, timing, injector flow, new wires, plugs, rotor, cap, etc.
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12-17-2006, 08:05 PM
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Registered
Join Date: Oct 2003
Location: Long Island,NY
Posts: 2,054
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coil? ground straps?
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1980 911SC #99 track car, 993 3.6, 50 PMO's 2019 Ford F150 da dragger 2015 MB SL400 wifey DD 2008 E93 M3 DD 2007 E60 530 wifey winter beater |
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12-18-2006, 01:05 AM
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Join Date: Dec 1999
Location: Novato, CA
Posts: 4,740
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It could be something as simple as a plug connector not seated on a spark plug.
After checking that, pull your plugs to see which one is black compared to the others. |
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12-18-2006, 05:54 AM
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