| Re: [GMCnet] 2nd last cylinder doesn't receive spark [message #324904 is a reply to message #324898] |
Fri, 13 October 2017 10:26   |
James Hupy
Messages: 6806
Registered: May 2010
Karma:
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Senior Member |
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Most of the time, those wires are NOT wire, but nylon strands that have
been turned into carbon traces by running huge current through them. They
are extremely delicate, particularly if one pulls on them. The only thing
that they are GOOD at, is TVRS suppression. (Electronic static and radio
noise ). I remember the days of Packard 440 ignition wires. Spark got where
it was supposed to get, every time. But drive it down the street and every
analog receiver nearby had some interference from it. Anyway, I have had
enough new suppression wires not work out of the box to make me suspicious
of any new set. I think they are supposed to have 5k ohms per foot of cable
length when new. Check them with a good ohm meter. Similar length wires
should have nearly the same resistance. Jwik.
Jim Hupy
Salem, Or
78 GMC ROYALE 403
On Oct 13, 2017 8:04 AM, "Terry" wrote:
Check those wires since messing with them changed the scenario...substitute
some others that are known good instead of playing musical wires as that
can lead you astray :)
--
Terry Kelpien
ASE Master Technician
73 Glacier 260
Smithfield, Va.
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