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Engine Electrical SNAP SNAP ???
Took the SC for a Winter drive this morning after several weeks of hibernation. After about fifteen minutes I stopped and opened the engine compartment with the car running and heard this loud random electrical SNAP SNAP noise that I could not pinpoint? The car was running perfectly but the sound was coming from the coil side of the engine. Any ideas? I want to run the car in a dark place and remove some of the covers in the area to see if I see an arc? It sounded like it was coming from the large electrical looking unit (??) on the left firewall but was afraid to fish around too much thinking I would get a shock!
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Vance '83 SC Cabriolet - The "Matrix" '73 914 - "Spicy Mustard" - SOLD |
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01-01-2004, 06:16 AM
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Join Date: Aug 1999
Location: Hickory NC USA
Posts: 2,502
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Sounds as if a spark plug wire is breaking down or maybe the plug wire is not seated onto the plug.
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'75 914-6 3.2 (Track Car) '81 SC 3.6 (Beast) '993 Cab (Almost Done Restoring) |
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01-01-2004, 07:08 AM
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Senior Member
Join Date: Mar 2000
Location: Lacey, WA. USA
Posts: 25,312
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Snap sounds are high voltage. Ignition wires. The wire, or a connector, is shorting. The spark is perhaps exiting the side (insulation) of the wire or connector and grounding against the engine. This can happen at the spark plug connector, down in the hole where you cannot see it. The connectors can be replaced separately.
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Man of Carbon Fiber (stronger than steel) Mocha 1978 911SC. "Coco" |
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01-01-2004, 09:12 AM
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Join Date: Dec 2003
Location: MS.
Posts: 2,322
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Maybe a critter decided to have a snack and nibbled on a plug or coil wire and the H/V is going to ground.
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84' Steelslantnose Cab. 1953 Dodge B-4-B-108" 90,127 miles 1953 Dodge B-4-C-116" 58,146 miles 1954 Dodge C-1-B8-108" 241V8 POLY 1973 Roadrunner 440-SIX-PACK* 1986 F-250 Super Cab-460 V8 tow Newest additions- Matching numbers 1973 340 Road Runner!! 1948 Dodge B-1-F-152" 1-1/2 ton Dump body, 39,690 miles others... |
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01-01-2004, 10:05 AM
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Me like track days
Join Date: Sep 2003
Location: Kirkland, WA
Posts: 10,209
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Take a look at NIGHT - chances are you will be able to see what is going on.
Craig
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- Craig 3.4L, SC heads, 964 cams, B&B headers, K27 HF ZC turbo, Ruf IC. WUR & RPM switch, IA fuel head, Zork, G50/50 5 speed. 438 RWHP / 413 RWTQ - "930 is the wild slut you sleep with who tries to kill you every time you "get it on" - Quote by Gabe Movie: 930 on the dyno |
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01-01-2004, 10:23 AM
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1983 Porsche 911 SC Cabriolet 3.0
