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Registered
Join Date: Oct 2002
Location: Minneapolis, MN
Posts: 1,226
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engine not turning over 79 SC
The facts(?)
I went into a store for 15 minutes When I came out the engine did not turn over. The horn honked. The battery seemed strong because with the ignition on the radio/CD player worked. The voltmeter showed over 12 volts. I switched off the CD player and still did not turn over. I let the car roll forward and let out the clutch in gear. Twisted the key and the engine turned over and started. The voltmeter shows 13+ volts while the car is running, Went home (1 mile) Pulled it into the garage. Turned it on/off several times and it turned over and started easily. This has happened before. Could it be the ignition? Or the starter?
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Thanks, Mike When I was a kid, I didn't want a stupid pony, I wanted a PORSCHE. 1970 911T Coupe, 1979 911SC Targa Euro, 1971 Honda CT70 HK Trail 70 (the ultimate in two wheeled transportation) |
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09-02-2007, 12:42 PM
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You're describing the exact situation I was in right before my starter went out.
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2021 Model Y 2005 Cayenne Turbo 2012 Panamera 4S 1980 911 SC 1999 996 Cab |
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09-02-2007, 02:07 PM
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Transplanted User
Join Date: Aug 2007
Location: Savannah GA
Posts: 241
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I'm thinking ignition switch first, starter second.
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Matty K. - 82 SC Targa - SCWDP member #0052 "Racing - the sport that requires more than one ball to participate" |
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09-02-2007, 02:20 PM
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Join Date: Oct 2002
Location: Minneapolis, MN
Posts: 1,226
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I should also add that when I turned the ignition there was no spring to it. So I'm thinking ignition switch. I have a spare, so tomorrow in it goes.
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Thanks, Mike When I was a kid, I didn't want a stupid pony, I wanted a PORSCHE. 1970 911T Coupe, 1979 911SC Targa Euro, 1971 Honda CT70 HK Trail 70 (the ultimate in two wheeled transportation) |
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09-02-2007, 08:41 PM
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Registered
Join Date: Mar 2007
Location: Kingston Ontario
Posts: 97
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Something similar happened to me recently. Went on a long trip(mostly freeway with some rain), stopped for gas on the way back and the car refused to crank at all. Everthing electricly seemed Ok and the car started instantly with a short push. Got it home and it still would not crank. Came out later after the car had cooled and it cranked no problem at all. Its been fine ever since but now I don't quite trust the car.
I was thinking solenoid perhaps or starter itself
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'83 SC Coupe |
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09-03-2007, 02:30 AM
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Registered
Join Date: Oct 2005
Location: Capistrano Beach, Ca.
Posts: 7,235
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I'd suspect the starter/solenoid first because of the bump start scenario and the fact starters tend to fail more often than switches. Your comment about the spring in the switch, though, makes it a different situation and since you have a spare, replacement makes good sense. Just be prepared for a repeat of the start failure.
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L.J. Recovering Porsche-holic Gave up trying to stay clean Stabilized on a Pelican I.V. drip |
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09-03-2007, 08:08 AM
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Designer King
Join Date: Mar 2004
Location: Toronto, ON Canada
Posts: 5,499
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As these things age, and then get hot , they seem to want to stick. Sometimes hitting the starter w/ a hammer frees things up. They can also be taken apart and cleaned. When my starter began doing this w/ 175000 mi on it I decided to replace it w/ a new hi torgue model.
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Paul Yellow 77 Sunroof Coupe/cork interior; 3.2L SS '80 engine/10.3:1/No O2; Carrera Tensioners; 11 Blade Fan; Turbo tie rods; Bilstein B6; 28 tube Cooler; SSI, Dansk; MSD/Blaster; 16x7" Fuchs/205/50 Firestone Firehawk Indy 500s; PCA/UCR, MID9 Never leave well enough alone |
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09-03-2007, 08:10 AM
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1985.5 Porsche 944 2.5L Supercharged 
911 SC
Panamera
