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Old 02-28-2016   #1
XfireZ51
 
Join Date: May 2007
Location: Chicagoland, IL
Posts: 9,708
Default Ohming plug wires

So as part of my winter projects, I decided to rebuild the starter. Every once in a while I get the "zing" but no engagement w the FW. I wait a moment and then it starts. So pulled the plenum. Knowing that I was doing this, I also decided that after 8 years, the MSD wires probably needed a refresh. Unfortunately, MSD no longer makes a set for the LT-5 and I wasn't going to build my own. I did find a set of Magnecor wires at Lingenfelter. A bit pricey but u don't change wires everyday either. Got them yesterday and pulled out my DVM.
The longest wire measured 5.3k Ohms. Then I pulled the plenum and measured the MSD wires. 130-140ohms. Wow the Magnecor measured what is supposed to be normal. But the MSDs are almost a short? Pretty consistent through all 8 wires. The Maganecore appear to be within spec, while the MSD are very much out of range. Is that what happens to plug wires over time?
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