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'66 Ambassador no spark again |
Post Reply | Page <1 23456 9> |
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poormansMACHINE
AMC Addicted Charter Member Joined: Jun/28/2007 Location: Shoemaker-Levy9 Status: Offline Points: 12302 |
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So you had 12 volts at the points while you cranked and didn't see a spark?
You shouldn't. |
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Trog
AMC Apprentice Joined: Nov/08/2007 Status: Offline Points: 156 |
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Right, with cap off and cranking the engine, I measured a constant battery voltage at the points/condensor terminal. Then held the coil cable ~ 1/4" from bare metal and only got the initial orange spark. Then immediately measured at the points terminal and it was still 12V.
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poormansMACHINE
AMC Addicted Charter Member Joined: Jun/28/2007 Location: Shoemaker-Levy9 Status: Offline Points: 12302 |
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Open/intermittent circuit between points and ground.
That's why I said just replace all the wires with fresh store boughts and take them out of the equation. Thge only thing simpler to fix than a points problem is a striker. |
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Trog
AMC Apprentice Joined: Nov/08/2007 Status: Offline Points: 156 |
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Old wire removed and getting replacement tomorrow afternoon and then there will be all new components. But what about the neutral safety switch in the equation?
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poormansMACHINE
AMC Addicted Charter Member Joined: Jun/28/2007 Location: Shoemaker-Levy9 Status: Offline Points: 12302 |
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If the starter turns what's wrong with the switch?
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Trog
AMC Apprentice Joined: Nov/08/2007 Status: Offline Points: 156 |
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Had two problems, one yet to be solved.
1. Indeed the coil to points primary wire was faulty as with the new one I made up installed we got spark. So we buttoned it all up and got the car started for an instant, but then it would not keep running and we again los spark.
2. The terminal in the distributor for the points and condensor is retained by a copper spring but this spring is too weak to keep the terminals retained and thus they come off. Will replace this set of points with one that has a screw for tightening down and retaining the terminals. I saw the terminl jump off while cranking w/o the cap on.
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69 ambassador 390
Supporter of TheAMCForum Joined: Nov/22/2009 Location: Peoria, AZ Status: Offline Points: 3539 |
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Buy good parts. Stay away from the zone and others like it and hit a speed shop. The Accel and Mallory points are usually pretty good and try to stay away from Uni Points cause they force you to replace and adjust the whole thing when the Chineese condensor craps out. Also check the third or bypass wire on the solenoid if you have it. If there is a problem there it will spark at cranking but stop after you let off the key. Just jump a hot wire from the Batt. to the + side if the coil and it should stay running. If it does then forget about the distributor area or coil and look at the start bypass or ballast.
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Steve Brown
Algonac, Mi. 69 Ambassador sst 390 84 Grand Wagoneer 69 Cougar XR7 65 Fairlaine 500XL 79 F-350 Super Camper Special |
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Trog
AMC Apprentice Joined: Nov/08/2007 Status: Offline Points: 156 |
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Yeah, online one of the national parts suppliers says "made in USA" but when I checked the boxes for thos every items across the counter, everyone of them said "made in China." On eof the other national parts dealer's are made in Mexico. Uni-points - is that the points/condensor combo? I have a set of those but haven't used them. Thanks for the tip about the third wire. My wife thought she detected "something" with the ignition switch when she was cranking the car over while I was under the hood.
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poormansMACHINE
AMC Addicted Charter Member Joined: Jun/28/2007 Location: Shoemaker-Levy9 Status: Offline Points: 12302 |
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Yes, the uni point is the combo.
Cross one bridge at a time. Swap the points and try it as it was intended with the key. |
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poormansMACHINE
AMC Addicted Charter Member Joined: Jun/28/2007 Location: Shoemaker-Levy9 Status: Offline Points: 12302 |
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This mfr always had good parts. Look up the numbers and search them out.
http://www.wellsve.com/ecatalog.html |
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