Quote:
Originally Posted by Last911
CD unit is making a whining sound (but I understand it can still be bad). I can easily get a good 12V Coil, the problem is getting a good CD unit up here.
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You are at square one. You have identified nothing as a genuine culprit except that the CD unit is more than likely good. (It's all good. Just troubleshooting).
Pull you cap and look at the points. You can spread them a little with a screwdriver. Do they look like crap at the contact points? A mountain on one side and a crater on the other? If ok, put the car in 2nd gear and push it (the car) until the points are at the top of a lobe. Measure the gap with a feeler gauge. Adjust if necessary. Better yet, replace the points and condenser as preventative maintenance if scruffy.
For $20 you can buy a coil for a 67 Chevy. Use that as a test mule.
Get a multi-meter and test continuity from the distributor to the CD box. Test continuity from the CD box to the coil. You need to learn how to do this as a Porsche owner that may only have one left nut ($$) to give to professional mechanics, if you know what I am saying. Forget about a spark at the points (for now). Set it and forget it, assuming continuity is present.
The CD system does not "juice" the coil constantly with 12V. As T77 says there is no power to the coil. However, when your points open and the stored energy in the condenser is released to the CD as a trigger signal, the CD box sends the big voltage signal to the coil. The coil ramps it up further and sends it on down the line through the secondary system (distributor/spark plug leads).
You just have a break in the system. Annoying to find, but on the upside, worse for a noob.
Also, you will not be knocked across the garage. You will only experience massive involuntary muscle spasms in your arm and chest. You will pull away and drop a huge sustained F bomb followed by a "Jesus H Christ, that effing hurt". Nothing to worry about.
Edit: Just read ischmitz's post. He's smarter than me on electricity. Take your time.