Missing - Coil Temp?

A

amphi662001

Guest
After swimming about 45 minutes Amphi's 4-banger suddenly became a 2-
banger. No overheating of the coolent. We limped to the ramp (w/
extreme "putting" all of the way, but lacked power to pull out. About
the the time a friend came w/ a line to haul us out, Amphi started and
ran fine. We pulled out and drove home. The smell of unburnt fuel and
a backfire leads me to believe it is electrical, not fuel related.

Subsequently, an hour at fast idle has not duplicated the problem.

I am replacing those items dedicated to individual cylinders (cap,
rotor, plug wires and plugs), but that still leaves the coil and
Pertronix module. I would think failure in these areas would not cause
the 2-cylinder symptom, . . . . but . . .?

The positive-ground, 41-year old coil gets too hot to touch for any
length of time, but I understand that is normal. Any ideas?

Thanks,
--Larry
 
D

David Chapman

Guest
<table style="BACKGROUND-COLOR: #ffffff" bgColor="#ffffff">
<font face="Arial" size="2">What leads and cap do you have ? The modern type non copper core leads fitted to the side entry cap willeventuallyburn backand cause this.</font>
<font face="Arial" size="2"></font>
<font face="Arial" size="2">If the rotor arm is LESS then15 years old then change it. Originals are mostly good forever but new ones aren't.</font>
<font face="Arial" size="2"></font>
<font face="Arial" size="2">Yes, coils can and do fail, I'd swop them at least once a decade ! They get hot but not too hot to touch. </font>
<font face="Arial" size="2"></font>
<font face="Arial" size="2">David C</font>
<font face="Arial" size="2"></font>
 
R

rlgreen_55

Guest
Take a ohm reading on the coil low voltage terminals. You should be
reading between 3 1/2 & 5 1/2 ohms.

Ron Green


--- In amphicar-lovers@yahoogroups.com, "amphi662001"
<amphi662001@...> wrote:
>
> After swimming about 45 minutes Amphi's 4-banger suddenly became a
2-
> banger. No overheating of the coolent. We limped to the ramp (w/
> extreme "putting" all of the way, but lacked power to pull out.
About
> the the time a friend came w/ a line to haul us out, Amphi started
and
> ran fine. We pulled out and drove home. The smell of unburnt fuel
and
> a backfire leads me to believe it is electrical, not fuel related.
>
> Subsequently, an hour at fast idle has not duplicated the problem.
>
> I am replacing those items dedicated to individual cylinders (cap,
> rotor, plug wires and plugs), but that still leaves the coil and
> Pertronix module. I would think failure in these areas would not
cause
> the 2-cylinder symptom, . . . . but . . .?
>
> The positive-ground, 41-year old coil gets too hot to touch for any
> length of time, but I understand that is normal. Any ideas?
>
> Thanks,
> --Larry
>
 
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