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engine will not fire

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Old Jul 8, 2018 | 03:11 PM
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Default engine will not fire

327/300 corvette engine will not fire. Just turns over. I just replaced plugs/wires/ Dist. cap/rotor. Also replaced starter solenoid. Was firing and running before.

Thanks to all! Sorry for not getting back to your questions/suggestions. I figured to problem out....had the plug wires one hole off.

Last edited by Lawnla; Aug 30, 2018 at 08:58 AM.
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Old Jul 8, 2018 | 03:16 PM
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What do you NOT have? Spark , fuel or compression ?
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Old Jul 8, 2018 | 04:11 PM
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Since wires & cap were replaced have you checked for correct wire firing order on cap.?
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Old Jul 8, 2018 | 04:26 PM
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To be clear, did you replace these things as part of regular maintenance and then it wouldn’t start or did you replace them chasing a no start problem?
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Old Jul 8, 2018 | 04:43 PM
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Originally Posted by Factoid
To be clear, did you replace these things as part of regular maintenance and then it wouldn’t start or did you replace them chasing a no start problem?
OPs initial post said it was running prior to the changes
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Old Jul 8, 2018 | 04:44 PM
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start with the basics

1.do you have power going to the coil?
if yes
2.do you have fuel at the carb?
if yes
3.do you have spark at the plugs?
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Old Jul 8, 2018 | 04:53 PM
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Verify that the rotor and cap is installed correctly. Then verify the firing order. Is it points or HEI?
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Old Jul 8, 2018 | 06:03 PM
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Originally Posted by Factoid
To be clear, did you replace these things as part of regular maintenance and then it wouldn’t start or did you replace them chasing a no start problem?
Regular maintenence.
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Old Jul 8, 2018 | 06:24 PM
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Make sure coil is ok.
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Old Jul 8, 2018 | 06:38 PM
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Did you replace the points/condenser? If you did, perhaps the points were not preset correctly. Make sure your coil wire and wire to the main terminal on the distributor is pushed on HARD and seals correctly.
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Old Jul 8, 2018 | 07:26 PM
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Get a test light and make sure the small pink wire on the new solenoid has power when you crank the starter. Also make sure that same pink wire is attached to the solenoid small "R" terminal.
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Old Jul 9, 2018 | 10:15 AM
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When you pull in the solenoid, you should see 12 v at the p/bl wire. Possible a bad solenoid not making internal contact.

Last edited by 65tripleblack; Jul 9, 2018 at 10:22 AM.
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Old Jul 9, 2018 | 03:30 PM
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Engine turns over fine. So it's not the solenoid. Engine ran fine before cap and rotor and wires were replaced. So it's about 100,000 to 1 that the coil happened to go bad. You can go down the rabbit hole if you want, checking coil voltages, solenoid wires, etc., or you can logically troubleshoot the system the same way the pro's do it. Your choice. Again: Points or HEI?
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Old Jul 9, 2018 | 04:40 PM
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Post#1 mentioned the solenoid was replaced. How long could it take to check the pink wire going to the coil + for power while cranking?
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Old Jul 10, 2018 | 08:25 AM
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Originally Posted by GTOguy
Engine turns over fine. So it's not the solenoid. Engine ran fine before cap and rotor and wires were replaced. So it's about 100,000 to 1 that the coil happened to go bad. You can go down the rabbit hole if you want, checking coil voltages, solenoid wires, etc., or you can logically troubleshoot the system the same way the pro's do it. Your choice. Again: Points or HEI?
The solenoid was replaced at the same time. The engine can turn over fine although if it's internally defective the R terminal won't become energized to supply power to the coil.

A quick check for the OP, would be to run a temporary jumper from the pos batt terminal to the pos coil terminal. Very simple. If the engine starts and runs then the problem is with the R terminal or the wire running from it to the coil.

Last edited by 65tripleblack; Jul 10, 2018 at 08:26 AM.
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Old Jul 10, 2018 | 03:54 PM
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Originally Posted by 65tripleblack
The solenoid was replaced at the same time. The engine can turn over fine although if it's internally defective the R terminal won't become energized to supply power to the coil.

A quick check for the OP, would be to run a temporary jumper from the pos batt terminal to the pos coil terminal. Very simple. If the engine starts and runs then the problem is with the R terminal or the wire running from it to the coil.
Duly noted, 65. PLEASE don't send me to Florida!!!
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Old Jul 10, 2018 | 05:52 PM
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Originally Posted by GTOguy
Duly noted, 65. PLEASE don't send me to Florida!!!
Banishment to Floriduh is for capital offenses only.

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