coil arching
Thread Starter
|
Senior User
Joined: May 2010
Posts: 476
Likes: 0
coil arching
i have a complete msd ignition on my fe.
8595 dizzy, blaster 2 coil, 6al, and msd 8.5 wires.
engine started cutting out on me the other day, any thing above 3grand was just awful. so i started looking for the culprit, but after finishing a compression test it would no longer start.
msd troubleshooting, coil wire 1/2" from a ground and touch white wire to another ground repeatedly. coil wire should spark meaning the 6al is still good.
while doing this i dident get a spark from the coil wire but insted the positive side of the coil was arching to the coil wire boot!
what do yall think bad coil? or maby somthing bigger???
8595 dizzy, blaster 2 coil, 6al, and msd 8.5 wires.
engine started cutting out on me the other day, any thing above 3grand was just awful. so i started looking for the culprit, but after finishing a compression test it would no longer start.
msd troubleshooting, coil wire 1/2" from a ground and touch white wire to another ground repeatedly. coil wire should spark meaning the 6al is still good.
while doing this i dident get a spark from the coil wire but insted the positive side of the coil was arching to the coil wire boot!
what do yall think bad coil? or maby somthing bigger???
Hotshot
Joined: Apr 2009
Posts: 14,333
Likes: 247
From: Stanley, VA
Sounds like you may have a carbon track from the coil tower to the terminal. Look for a thin, light gray/black line between the two. I don't know if it could be cleaned effectively, if there is a track you might have to replace the coil and coil wire.
Thread Starter
|
Senior User
Joined: May 2010
Posts: 476
Likes: 0
the trail g starts on the outside of the coil tower runs up and inside where the wire plugs into...
it decided to start a few minuts ago... but still acts a lil goofey.
ordered new wires, going to install my dui insted of buying another coil... im tired of looking at it in my livingroom anyway.
ps dont touch the positive side of the coil when running, unless your into that kind of thing!!!
it decided to start a few minuts ago... but still acts a lil goofey.
ordered new wires, going to install my dui insted of buying another coil... im tired of looking at it in my livingroom anyway.
ps dont touch the positive side of the coil when running, unless your into that kind of thing!!!
Thread Starter
|
Senior User
Joined: May 2010
Posts: 476
Likes: 0
sooo, what causes carbon tracking? iv done a lil searching but havent really found much.
would hate to damage my dui because i havent really fixed the initial problem!
msd system has only a couple thousand miles on it, but components did lay around the shoppe a good year before i got around toit...
new spark plug wires due this week, but i still need wheels time to time.
the carbon tracking appears to only be on the coil if that changes anything.
would hate to damage my dui because i havent really fixed the initial problem!
msd system has only a couple thousand miles on it, but components did lay around the shoppe a good year before i got around toit...
new spark plug wires due this week, but i still need wheels time to time.
the carbon tracking appears to only be on the coil if that changes anything.
Trending Topics
Hotshot
Joined: Apr 2009
Posts: 14,333
Likes: 247
From: Stanley, VA
From what I understand the initial arc will leave an invisible trace of carbon. Carbon is conductive so it makes it easier to arc again. Each time it arcs it leaves a little more of a carbon trace making each successive arc easier.
As for what caused the initial arc, could be any number of things, deffective insulation and moisture are two causes that come to mind.
As for what caused the initial arc, could be any number of things, deffective insulation and moisture are two causes that come to mind.
FTE Stories
Ford Trucks for Ford Truck Enthusiasts
10 Best Ford Truck Engines We Miss the Most!
Joe Kucinski
2026 Shelby F-150 Off-Road: Better Than a Raptor R?
Brett Foote
2027 Super Duty Carhartt Package First Look: 12 Things You NEED to Know!
Michael S. Palmer
10 Most Surprising 2026 Ford Truck Features!
Joe Kucinski
Top 10 Ford Trucks Coming to Mecum Indy 2026
Brett Foote
5 Best / 5 Worst Ford Truck Wheels of All Time
Joe Kucinski
Ford Super Duty: 5 Things Owners LOVE, 5 Things They LOATHE!
Joe Kucinski
Every 2026 Ford Truck Engine RANKED from WORST to FIRST!
Michael S. Palmer
The Best F-150 Deal of Every Trim Level (XL through Raptor)
Joe Kucinski
Thread
Thread Starter
Forum
Replies
Last Post
Jeff K
1948 - 1956 F1, F100 & Larger F-Series Trucks
18
Nov 4, 2013 11:25 AM