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After 3 days of intense troubleshooting and racking my feeble brain on why =
this happened, I FINALLY found out why. Background-------was having a plea=
sant drive-----felt a slight miss------BIG backfire--sputtering then cuttin=
g off. Sat for a while, she started and I drove maybe 100 yards. Repeat o=
f above------------sat beside the road and checked to see if I had fuel to =
the carbs--yes-----pulled float bowl lids and plenty of gas in float bowls.=
had spark to plugs. Nothing obvious--so called AAA--got towed home.Next=
several days I tried the switch and check method----changed fuel pump----c=
hanged coil, changed rotor, replaced dist cap, pulled the battery cut-off =
sw and directly shorted to body ground, checked to make sure the low tensio=
n wire had not grounded itself. ALL--to no avail. so I was down to my las=
t idea.That was to pull and replace the Pertronix Ignitor. As I was taking=
it out, The cause of this whole mess became apparent. The hot wire from t=
he Ignitor to the coil had been rubbed raw on one side of the wire, exposin=
g just a tiny amount of the inner wire. It was this small amount of expose=
d wire that was shorting intermittingly. and this was the source of my pro=
blem. Apparently, over time the rotor had rubbed the wire until it rubbed =
enough insulation off to expose the wire. This shows how long that Pertroni=
x had been in there.This was truly an AH HA moment. Happy I found it but s=
o very flustrated over what it took to discover it. But in the process I go=
t a new fuel pump (electronic), new dist cap, new rotor, new Ignitor, new P=
ertronix coil, and a lot of knowledge:)Glad the root cause was finally foun=
d and fixed and she is purring again:)TomAnyway, replace
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<html><head><style> body {height: 100%; color:#000000; font-size:12pt; font=
-family:arial, helvetica, sans-serif;}</style></head><body><div>After 3 day=
s of intense troubleshooting and racking my feeble brain on why this happen=
ed, I FINALLY found out why. Background-------was having a pleasant d=
rive-----felt a slight miss------BIG backfire--sputtering then cutting off.=
Sat for a while, she started and I drove maybe 100 yards. Repe=
at of above------------sat beside the road and checked to see if I had fuel=
to the carbs--yes-----pulled float bowl lids and plenty of gas in float bo=
wls. had spark to plugs. Nothing obvious--so called AAA--=
got towed home.</div><div><br data-mce-bogus=3D"1"></div><div>Next several =
days I tried the switch and check method----changed fuel pump----changed co=
il, changed rotor, replaced dist cap, pulled the battery cut-off sw a=
nd directly shorted to body ground, checked to make sure the low tension wi=
re had not grounded itself. ALL--to no avail. so I was down to =
my last idea.</div><div><br data-mce-bogus=3D"1"></div><div>That was to pul=
l and replace the Pertronix Ignitor. As I was taking it out, The caus=
e of this whole mess became apparent. The hot wire from the Ignitor t=
o the coil had been rubbed raw on one side of the wire, exposing just a tin=
y amount of the inner wire. It was this small amount of exposed wire =
that was shorting intermittingly. and this was the source of my probl=
em. </div><div>Apparently, over time the rotor had rubbed the wi=
re until it rubbed enough insulation off to expose the wire. This shows how=
long that Pertronix had been in there.</div><div><br data-mce-bogus=3D"1">=
</div><div>This was truly an AH HA moment. Happy I found it but so ve=
ry flustrated over what it took to discover it. But in the process I got a =
new fuel pump (electronic), new dist cap, new rotor, new Ignitor, new Pertr=
onix coil, and a lot of knowledge:)</div><div><br data-mce-bogus=3D"1"></di=
v><div>Glad the root cause was finally found and fixed and she is purring a=
gain:)</div><div><br data-mce-bogus=3D"1"></div><div>Tom</div><div><br data=
-mce-bogus=3D"1"></div><div>Anyway, replace</div><div> </div><div><br =
data-mce-bogus=3D"1"></div><div><br data-mce-bogus=3D"1"></div><div><br dat=
a-mce-bogus=3D"1"></div></body></html>
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