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The car must be running the neg to ground the positive to the point lead from the distribtor to the coil... I hope this helps you..
The red wire goes to the terminal of the coil that leads to the distributor, and the black wire goes to any ground.The dwell spec you can look up, but it's probably 28 to 32 degrees, so 30 is optimum. Car needs to be running.If your cap has the slideup window, you can see that the points can be adjusted with an Allen wrench. Most auto parts stores will carry a tool for this that looks like a long screwdriver with a semi-flexible allen key on the end.I guess I am getting old because this is something we did on our cars almost monthly when we were kids.Set the dwell, then set the timing with a timing light. Disconnect the vaccum to the distributor, and plug the hose.Good luck,Brian
To use a dwell meter for adjusting contact points, connect the red lead of the dwell meter to the distributor side of the ignition coil (wire going to the contact points). Connect the black lead to ground.If the distributor cap has an adjustment window, the points should be set with the engine running. With the meter controls set properly, adjust the points through the window of the distributor cap using a Allen wrench or a special screwdriver. Turn the point adjustment screw until the dwell meter reads within manufacturer’s specification. However, if the distributor cap does not have an adjustment window, remove the distributor cap and ground the ignition coil wire. Then crank the engine; this action will simulate engine operation and allow point adjustment with the dwell meter. Dwell specifications vary with the number of cylinders. An eight-cylinder engine requires 30 degrees of dwell. An engine with few cylinders requires more dwell time. Always consult the manufacturer’s service manual for exact dwell values. Dwell should remain constant as engine speed increases or decreases. However, if the distributor is worn, you can have a change in the dwell meter reading. This is known as DWELL VARIATION. If dwell varies more than 3 degrees, the distributor should either be replaced or rebuilt. Also, a change in the point gap or dwell will change ignition timing. For this reason, the points should always be adjusted before ignition timing.For more, go to this site to learn how to set your points, cap, rotor, plugs, etc.http://www.tpub.com/content/construction/14273/css/14273_70.htm
Dieseling can also be caused by something as simple as the idle set too fast, once the timing is properly set (you really SHOULD have a Shop Manual for this car) make sure the idle is also set to specs. Actually the idle should be set slow enough so that the mechanical advance is not coming into play in the first place when adjusting the timing. If I remember correctly the final idle is set by adjusting the anti-dieseling solenoid, not the carburetor itself (after the carburetor is adjusted correctly). You really SHOULD have the Shop Manual for this car! Check for them in eBay or from outfits such as Crank 'en Hope and many other sources that sell original or repros of shop manuals.
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