C3 Tech/Performance V8 Technical Info, Internal Engine, External Engine, Basic Tech and Maintenance for the C3 Corvette
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70 wont start

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Old Apr 20, 2012 | 02:47 PM
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From: maryland
Default 70 wont start

my 1970 turns over but wont fire. Ran well last week. Any thoughts?
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Old Apr 20, 2012 | 03:45 PM
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well it's either gas or spark. Twist and pull one of the spark plug wires off at a plug and insert a insulated screwdriver into the end of the wire. While holding the insulated end of the screwdriver hold the metal shaft near any metallic part of the engine while someone tries to start the car. If you have a spark we now have to check for fuel. Remove the air cleaner assembly and look down the front/primary side of the carburetor, you may have to hold the choke blade open. Manually move the throttle assembly and you should see gas squirt into the front half.
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Old Apr 20, 2012 | 04:19 PM
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Actually most auto parts places carry spark testers for about 5 bucks. Probably a good thing checking for spark first.
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Old Apr 21, 2012 | 10:21 AM
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Neutral safety switch
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Old Apr 22, 2012 | 09:14 PM
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My 70 had an external type that was plugged with grit & small rusted metal. Replace the filter & it started right up!!!!
Good luck
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