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| | | | Joined: Sep 2013 Posts: 11 New Guy | | New Guy Joined: Sep 2013 Posts: 11 | Got a problem. I have a '49 6100 Chev yard & 1/2. I've replaced the harness, coil, distributor, etc. I've got spark to the dist and points, but I don't have spark at the plugs. I've tried the short cover and rotor and the tall ones. All 12v now. Any advise? My '49 | | | | | Joined: Nov 2005 Posts: 6,100 'Bolter | | 'Bolter Joined: Nov 2005 Posts: 6,100 | Hy ssgintx, do you have another coil you could try? A bad condenser can cause an intermittent or no spark situation as well, hope that helps. | | | | | Joined: May 2005 Posts: 8,983 Sir Searchalot | | Sir Searchalot Joined: May 2005 Posts: 8,983 | Main wire from Coil tower to Dizzy tower (secondary) is bad? New coils, rotors and caps can be bad right away. Replace ALL plug and dizzy wires. Check dizzy ground and other vehicle grounds. What does "spark to dist" mean? What did you specifically test, what did you see?
Last edited by bartamos; 05/04/2014 9:13 PM.
Right is right, even if everyone is against it, and wrong is wrong, even if everyone is for it. - William Penn
| | | | | Joined: Sep 2013 Posts: 11 New Guy | | New Guy Joined: Sep 2013 Posts: 11 | Batamos, I watched the points spark as I cranked the eng. I guess I shoulda said "fire" to the distributor.
3B, I've tried two coils and two condensors. | | | | | Joined: Oct 2012 Posts: 233 'Bolter | | 'Bolter Joined: Oct 2012 Posts: 233 | OK, you have spark at the points and or current flow through the points to ground. Replace the coil wire and see if that is why you have no spark at the plugs. If not the coil secondary side is bad. MIKE
1953 Chevy 3100 261 and SM420 53Chevy 31001953 Mack Firetruck 1972 Porsche 911 1986 Honda Goldwing
| | | | | Joined: Jan 2010 Posts: 4,263 Shop Shark | | Shop Shark Joined: Jan 2010 Posts: 4,263 | Got a problem. I have a '49 6100 Chev yard & 1/2. I've replaced the harness, coil, distributor, etc. I've got spark to the dist and points, but I don't have spark at the plugs. I've tried the short cover and rotor and the tall ones. All 12v now. Any advise? My '49Did it work before you did that work? Did you remove/reinstall the distributor for any reason? With the pointer on the ball where s the rotor pointing? | | | | | Joined: Jan 2013 Posts: 1,384 Shop Shark | | Shop Shark Joined: Jan 2013 Posts: 1,384 | Take the problem in pieces.
You visually have sparking at the points, good. Clean spark is good. A spark that is ragged, seems to explode out of the points, bad condenser.
Now test the spark at the distributor end of the coil wire.
If there is no spark there, replace the coil wire or test with a piece of sold wire for spark at the coil tower. Make your sure your test has a GOOD ground.
No spark from the coil is a bad coil.
Spark to the center of the dist. cap and nothing to the plugs - rotor, cap or spark plug wires.
Electricity follows rules. If your coil creates a spark, it has to go somewhere. | | | | | Joined: Sep 2013 Posts: 11 New Guy | | New Guy Joined: Sep 2013 Posts: 11 | DADS50, It ran before I started my restore. The distributor is new, I just replaced it thinkin' it was my problem. I got the cap and rotor at the same time, same supplier. When the pointer is on the ball, the rotor is pointing at 1...about 1 o'clock.
Jim I'm going to start from scratch and test everything again. Maybe some of the stuff I put on is not good and I'm not seeing it.
Thanks everyone, I'll get back to you
Steve | | |
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