<VV> Ignition Help

[Dennis & Debbie PLEAU]

The problem was an overheated coil.  I had a chance to work on the brier 
today, First I drove it to make sure I could duplicate the problem.  I drove 
10 miles at 55 and no problems.  Turned around for home and it started 
missing and backfireing, just like it did on the way home from Montrose.  I 
then switched the coil back to the balast resistor wire and the I had a 
really hard time getting it started and it barely ran.  I then put 12v back 
to the coil and it ran much better, but still not driveable.  I then 
switched the coil out and it started and ran great.  I switched back to the 
resistor wireing on the coil and it still ran great.  I retraced my route of 
earlier and it ran great.  I replaced the cap and rotor and it now runs 
better than ever.

I don't think the 12v was the problem.  The van has the early shrouding with 
the flaps right behind the thermostat controlled outlets which blow hot air 
on the coil.  I think the problem was a 90+ degree day and blowing hot air 
on the coil which made it fail.  I bent the flap closed.

I'm going to remove the lower shrouds before I pull a pop up tent trailer 
across the country.  I don't think it will be a problem as we will only be 
starting it up a few times a day and then driving a lot of mile before 
shutting it down again.

dp

>From: "Dennis & Debbie PLEAU" <ddpleau at msn.com>
>To: virtualvairs at corvair.org
>Subject: <VV> Ignition Help
>Date: Sun, 04 Jun 2006 20:59:53 -0600
>
>I went to Montrose, CO for the annual Tri-State meet.  It's about 275 miles 
>each way over the top of the Rockies.  No problem getting to Montrose, but 
>on the way back going up towards Monarch Summit (11403')when I had to shift 
>dow to 3rd, the van started missing.  It made the summit and then started 
>back fireing out the exhaust on the way down the other side for a while and 
>then quit.  I missed all the way home from there.  It seems to be ignition 
>related as I don't think it is one cylinder or one bank.  Iyt also seems to 
>be temperature or load dependant.  The higher the RPM the more it misses.  
>I could go long streaches at 60 mph with very few misses, but it I ran 65 
>it started missing big time after a few minutes, which also leads me to 
>believe it is also heat related.
>
>I'm guessing it is a coil over heating or a Pertronmics I failing.  I have 
>both the Pertronics and the Flame thrower coil running on 12 volts.  It 
>also has a really old cap and rotor.
>
>Let me know what you think,
>
>Thanks,
>
>dp