<VV> OK, Now What?

[Jeffrey B. Aronson]

When you first described your problem it did not sound fuel related, but 
ignition related, to me. Now the question is whether you're getting a 
strong enough voltage to the spark plugs.

If you have someone with you, then remove a spark plug wire [or plug if 
you have the tools] and use a screwdriver to ground out the end or tip 
of the plug. You should hear a good "snap" and see a good blueish spark 
as it cranks over. If not, then continue along.

If you have some WD-40 or similar product, spray all around the cap and 
spark plug wires. Let it soak for a couple of minutes and then try it. 
If you have a crack in the cap or weak wires, that will reduce the 
voltage and prevent the plugs from firing properly. If it does start, 
replace the cap and rotor with the correct ones for the year of your car 
and its horsepower. The Corvair used a number of different distributors 
but the cap and rotors seem to be available at auto parts stores.

If nothing happens, then remove the cap and rotor and turn the key to 
"on." If you take a small screwdriver and gently pull back the points, 
you should get a good spark when you cross them with the tip of the 
screwdriver. While you're there, separate the points and look at them. 
Are they metal colored or blackened? The latter means that they're 
pitted and probably not gapped sufficiently. A matchbook cover is a 
reasonable guide if you don't have a feeler gauge. Open the points by 
pulling on the fan belt [key off!] until the distributor cam lobe 
separates the points. It should happen at the top of the lobe. Then 
check the gap. The matchbook is about .10, about as thin as you want to 
go. If it's less than that, the car won't start. Sand off any blackened 
portion with an emery board or fine sandpaper, blow out the debris, and 
reset the points. It should start.

If you don't have a spark, then check the "ground" wire from the 
distributor to the coil. Make certain it's not broken or frayed.

There's not much more to the ignition system than this. Good luck!

Jeff Aronson
Vinalhaven, ME



Assuming you do, then look at the tip of the rotor. Is is clean or 
blackened? Look at the contacts inside the distributor cap. Are there 
"steps" worn into the contacts? Most caps have a carbon button at the 
top inside of the cap; that must make contact with the top of the rotor.