No Sparky spark
Thread Starter
|
Senior User
Joined: Nov 2007
Posts: 113
Likes: 0
No Sparky spark
Help,
I have no spark from the coil.
I had the coil tested and it was fine. How reliable are the tests at Autozone?
The motor has been sitting for years, I changed the plugs, fluids, put mystery oil in each cylnder, fresh gas, and a new battery, it turns over fine. I used gas down the carb and then starter fluid and no fireing.
I pulled a spark plug wire and had no spark
Then I pulled the coil to distributor wire and held it almost against the head 1/4" maybe and no spark. All wires look fine.
What else should I check and how?
Any other part that I can test or do I have to buy another part?
272 yblock
thanks
Jeff
I have no spark from the coil.
I had the coil tested and it was fine. How reliable are the tests at Autozone?
The motor has been sitting for years, I changed the plugs, fluids, put mystery oil in each cylnder, fresh gas, and a new battery, it turns over fine. I used gas down the carb and then starter fluid and no fireing.
I pulled a spark plug wire and had no spark
Then I pulled the coil to distributor wire and held it almost against the head 1/4" maybe and no spark. All wires look fine.
What else should I check and how?
Any other part that I can test or do I have to buy another part?
272 yblock
thanks
Jeff
Elder User
Joined: Dec 2006
Posts: 559
Likes: 0
From: Redondo Beach, CA
Jeff, did you check the points, condenser, cap, etc.? Power to points? Condition of points, gap, etc. Good grounds?
Just throwing some things at you, I'm late getting out the door.
Y-Blockhead
Just throwing some things at you, I'm late getting out the door.
Y-Blockhead
Elder User
Joined: Mar 2008
Posts: 978
Likes: 1
From: darrington wash
i think that 1/4 inch is a bit far for spark? but not 100% for sure... i would try it a bit closer...
if they say its good... then its probablly good...
how did they test it???
theres a automotive repair shop that we used to take our coils to when we thought that that may be the problem... and basically what they would do... was set the coil on the machine... hook it up like it should be in car... then run the distributar wire over to a plug thing that had some sore of metal at the end... then a gap[that was adjustable] and on the other side of the gap, was another piece of metal... and then the switch would be fliped on... and electrisity would fly threw the air inbetween the gap...
ofcource there was always the little joke muttered by one of the shop guys "stick your pecker in there and you will never have kids"
i dont know about autozones tests... but the one that the shop always did for us was pretty reliable... i mean you could see the results right there... flowing threw the air
if they say its good... then its probablly good...
how did they test it???
theres a automotive repair shop that we used to take our coils to when we thought that that may be the problem... and basically what they would do... was set the coil on the machine... hook it up like it should be in car... then run the distributar wire over to a plug thing that had some sore of metal at the end... then a gap[that was adjustable] and on the other side of the gap, was another piece of metal... and then the switch would be fliped on... and electrisity would fly threw the air inbetween the gap...
ofcource there was always the little joke muttered by one of the shop guys "stick your pecker in there and you will never have kids"
i dont know about autozones tests... but the one that the shop always did for us was pretty reliable... i mean you could see the results right there... flowing threw the air
Elder User
Joined: Dec 2006
Posts: 559
Likes: 0
From: Redondo Beach, CA
Jeff, I think you are a bit confused. The points supply the voltage to the PRIMARY side on the coil and when the points open, the magnetic field in the coil collapses causing the SECONDARY side on the coil to fire ~ 30,000 volts to the distributor. The distributor then directs this voltage to the proper spark plug (hopefully if it's times correctly).
With that said, ensure your points and condenser are in proper working order.
Y-Blockhead
With that said, ensure your points and condenser are in proper working order.
Y-Blockhead
Thread Starter
|
Senior User
Joined: Nov 2007
Posts: 113
Likes: 0
Thank you for explaining that, I was confused. I thought it was a one way path from ignition and battery to coil to distributor to points to spark plugs. I will go back and check points and everything again. I read the shop manual and it did not make sense to me, now I know why.
Thanks
I'll be back
Oh and thanks for saying a bit confused, but I was major confused!
Thanks
I'll be back
Oh and thanks for saying a bit confused, but I was major confused!
Elder User
Joined: Dec 2006
Posts: 559
Likes: 0
From: Redondo Beach, CA
Jeff,
Good, I'm glad that you understood my explanation. An easy way to check for spark is to take off the distributor cap, turn the ignition switch to on, have your girl friend/wife hold the coil wire and arc across the points with a small screw driver. If she starts kinda jiggling around and making funny noises then you can be pretty sure she is getting about 30,000 volts. ha
Good luck with your project,
Y-Blockhead
Good, I'm glad that you understood my explanation. An easy way to check for spark is to take off the distributor cap, turn the ignition switch to on, have your girl friend/wife hold the coil wire and arc across the points with a small screw driver. If she starts kinda jiggling around and making funny noises then you can be pretty sure she is getting about 30,000 volts. ha
Good luck with your project,
Y-Blockhead
Trending Topics
Thread Starter
|
Senior User
Joined: Nov 2007
Posts: 113
Likes: 0
Hey Yblock
Good idea, but I will use my wife, I would hate to see my GF in that situation! LOL
Good idea, but I will use my wife, I would hate to see my GF in that situation! LOL
FTE Stories
Ford Trucks for Ford Truck Enthusiasts
Top 10 Most Expensive Ford Trucks Ever Sold on Bring a Trailer
Joe Kucinski
2027 Ford Super Duty Buyer's Guide (Every Model, Engine, & Package)
Brett Foote
Top 10 Ford Truck Tragedies
Joe Kucinski
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
Thread Starter
|
Senior User
Joined: Nov 2007
Posts: 113
Likes: 0
Hey Y-Blockhead,
Well I did exactly as you said it worked, but once my wife regained consciousness she was extremely pissed, but at least I know it works.
PS: one other thing, I am sleeping in the truck tonight!
Well I did exactly as you said it worked, but once my wife regained consciousness she was extremely pissed, but at least I know it works.
PS: one other thing, I am sleeping in the truck tonight!
Thread
Thread Starter
Forum
Replies
Last Post
Telestar
1980 - 1986 Bullnose F100, F150 & Larger F-Series Trucks
45
May 4, 2016 06:35 PM
Gordesky Mco
1968-Present E-Series Van/Cutaway/Chassis
8
Nov 26, 2014 11:15 PM
Jeff K
1948 - 1956 F1, F100 & Larger F-Series Trucks
18
Nov 4, 2013 11:25 AM
