installed wrong coil
Thread Starter
|
Senior User
Joined: Nov 2005
Posts: 113
Likes: 0
installed wrong coil
A week or two ago I went to carquest and bought a coil for a 74 f100 390 no power anything. I got home and put it on the truck. Everything fine until Sunday, when the truck wouldn't start.
This morning I am rechecking wires for a short or blown fusible. I double checked my coil and saw that I given one with an internal ballastor. I know these trucks have a resistor. Could that have caused the problem?
This morning I am rechecking wires for a short or blown fusible. I double checked my coil and saw that I given one with an internal ballastor. I know these trucks have a resistor. Could that have caused the problem?
Thread Starter
|
Senior User
Joined: Nov 2005
Posts: 113
Likes: 0
I just came in from the garage. My fusible link looks fine, insulation is not weak, hard, burnt, or discolored. I'll put my original coil back on and get a new one this weekend.
I have power to solenoid, starter, regulater, and the coil.
I have power to solenoid, starter, regulater, and the coil.
Thread Starter
|
Senior User
Joined: Nov 2005
Posts: 113
Likes: 0
Before this coil mess started, I changed the plugs and wires. They were so worn the metal in the wire head stayed with the spark plug. Then I replaced the rotor, condenser, and points.
The points worried me. The engine refused to crank if the points were gapped at all. I figured the system wasn't getting enough juice and replaced the coil.
The points worried me. The engine refused to crank if the points were gapped at all. I figured the system wasn't getting enough juice and replaced the coil.
Thread Starter
|
Senior User
Joined: Nov 2005
Posts: 113
Likes: 0
The points still look all right. So far the truck has a new regulator, solenoid, battery, cables (including new ground), distributor cap, rotor, condenser, plugs and plug wires.
All the electrical wires look pretty good no cracks or burns. After I verified this I rewrapped them.
So now I am wondering what else I might be missing.
All the electrical wires look pretty good no cracks or burns. After I verified this I rewrapped them.
So now I am wondering what else I might be missing.
Moderator
Joined: Jan 2001
Posts: 56,966
Likes: 2,728
From: Virginia
Get a testlight and hook it to the negative of the coil, and the other end to ground on the engine block. Crank the engine. If the light blinks when the engine turns, you are ok. If it doesn't something is wrong with the points, or the wiring to the points, or the ground wire inside the distributor.
Trending Topics
Junior User
Joined: Oct 2008
Posts: 82
Likes: 0
Yea light will come on when points are open, off when closed.Take cap off and bump engine until rubbing block of points is on cam lobe of dist. Adjust points to .017 opening. Make sure feeler gauge is clean and has a slight drag when pulling across points.
FTE Stories
Ford Trucks for Ford Truck Enthusiasts
AEV FXL Super Duty - the Super Duty Raptor Ford Doesn't Make
Brett Foote
Lobo Vs Lobo: Proof the F-150 Lobo Should Be Even Lower!
Michael S. Palmer
Ford's 2001 Explorer Sportsman Concept Looks For a New Home
Verdad Gallardo
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
Thread Starter
|
Senior User
Joined: Nov 2005
Posts: 113
Likes: 0
Well I put in the new radiator. I tried changing the distributor ground, nothing. I then changed out the alternator, it started. That long bolt was a bugbear.
The weird thing is the battery never lost power. I was always told if the alternator was bad the battery would die.
Thanks for all of the help.
The weird thing is the battery never lost power. I was always told if the alternator was bad the battery would die.
Thanks for all of the help.
Thread
Thread Starter
Forum
Replies
Last Post
r2000f150
1973 - 1979 F-100 & Larger F-Series Trucks
5
Apr 17, 2011 10:27 AM