RE: [DMCForum] Shakedown Breakdown (More ignition troubleshooting)

["Dave Stragand" <dave.stragand@xxxxxxxxxxxxxxx>]

What is the -voltage- at the coil?

-----Original Message-----
From: cruznmd [mailto:racuti1@xxxxxxxxxxxx] 
Sent: Sunday, August 01, 2004 9:35 PM
To: DMCForum@xxxxxxxxxxxxxxx
Subject: [DMCForum] Shakedown Breakdown (More ignition troubleshooting)


After advancing the timing back to 13 degrees, there was definitely 
an improvement in performance, but still some small bit of the 
problem remains. I was even able to run the new coil with better 
results, but still the old, blue coil works better.

Two things of note: 
1. When the ballast resistor has been powered for a while and it's 
good and hot, the resistance increases. The lower one read .9 ohms 
and the upper one read .7-.8 ohms. This is nearly double the rated 
value. I think it's breaking down and should be replaced.

2. With my shiny, new timing light, I was able to observe the 
different types of timing advance;

In accordance w/the manual, under vacuum advance, it has 3 steps and 
the timing incremented accordingly. I then removed the vacuum line 
from the distributor and checked the centrifugal advance. It 
increments to the proper points at the proper RPM's as far as I can 
tell. It's hard to see the tach and read the timing at the same time.

Under load, it's a different story. The car hesitates a bit when you 
pull away, as though the advance is sticking and when it "breaks 
free", acceleration is smooth and steady.

Does this sound cracked or is it feasible?

Rich A.
#5335



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