ignition points spark?????? - Texas 4x4 Forum

Go Back   Texas 4x4 Forum > Technical > Gas\Diesel Engine & Transmission

Photo Gallery Places to Wheel Gallery III Home Forum Tech Section IRCChat FlashChat

Gas\Diesel Engine & Transmission Engine, Transmission, Transfer case

Texas4x4.org is the premier All All Forum on the internet. Registered Users do not see the above ads.

Gas\Diesel Engine & Transmission:

ignition points spark??????



Reply
 
Share LinkBack Thread Tools Display Modes
Old 02-06-2010, 06:38 PM   #1
Rock Stacker
 
tplsblzrB75's Avatar
 
Join Date: Nov 2003
Location: Midland, TX.
Posts: 181
tplsblzrB75 will become famous soon enough
ignition points spark??????

I have a 72 Ford Econoline. It is not sparking at the points or spark plugs.
question is where do I start looking for power?
Is it at the coil?
I ran out of light and want to know where I could start at light tomorrow. Thanks in advance.
__________________
Army trainin blazer 75 350/465/205 ridin on 35 with 4" lift,original NM borderpatrol green
72 ford rv van (granpaS', original)Mystery machine green (this will be my tow vehicle)

Wifes garage: 2005 Blk Rubicon TJ
tplsblzrB75 is offline   Reply With Quote
Sponsored Links
Advertisement
 
Old 02-06-2010, 08:16 PM   #2
Cooler'na13floorelevator
 
4x4Freak's Avatar
 
Join Date: Dec 2002
Location: Kermit, TX
Posts: 6,117
4x4Freak Surfs Venus with Anubis4x4Freak Surfs Venus with Anubis4x4Freak Surfs Venus with Anubis4x4Freak Surfs Venus with Anubis4x4Freak Surfs Venus with Anubis4x4Freak Surfs Venus with Anubis4x4Freak Surfs Venus with Anubis4x4Freak Surfs Venus with Anubis4x4Freak Surfs Venus with Anubis4x4Freak Surfs Venus with Anubis4x4Freak Surfs Venus with Anubis
The coil has a positive and a negative terminal. The positive is fed by the ignition switch. All the systems I have worked on have a resistor inline to drop the voltage to about 6 volts and a bypass wire to feed 12 volts to it during starting. The reason for this is 6 volts may not provide a powerfull enough spark to start the engine cold, but a constant 12 volts will burn up the points quicker. It is my understanding that not all systems used this type of setup.

The negative side is switched by the points. The points open and close causing the coil to energize and discharge. Most points are grounded through the distributor housing.

First thing I would do is check for power to the coil. Be sure to ground the test light/meter to a good ground, not the coil ground. If you are getting power there check the point gap and make sure they are grounded good. If it's been sitting a while there may be corrosion between the points and mounting plate. There should also be a condenser. It is there to keep the points from arcing when they open.

You will also need to check the point gap and make sure the points are in good shape and clean. A business card is usually about the right thickness to get them close enough. The correct way to set them is to use a dwell meter. I've never used one, so I cant tell you much about that.



I got the plasma cutter hooked up and working. That thing is a beast.
__________________
Zach


Quote:
Originally Posted by RVREDDOG
Thats pretty much how I feel about it....You gone yet?
Reality is an illusion caused by the absence of alcohol.

75 IH Scout II
79 Chevy K10
80 GMC K25
97 Chevy S10
05 Dodge 3500

Collect the whole set.
4x4Freak is offline   Reply With Quote
Old 02-06-2010, 09:00 PM   #3
Rock Stacker
 
tplsblzrB75's Avatar
 
Join Date: Nov 2003
Location: Midland, TX.
Posts: 181
tplsblzrB75 will become famous soon enough
points

Thanks i think that is really what i needed to know.

Glad to hear the plasma is tearn it up. I am very jealous wish i had one...
__________________
Army trainin blazer 75 350/465/205 ridin on 35 with 4" lift,original NM borderpatrol green
72 ford rv van (granpaS', original)Mystery machine green (this will be my tow vehicle)

Wifes garage: 2005 Blk Rubicon TJ
tplsblzrB75 is offline   Reply With Quote
 
Old 02-06-2010, 09:14 PM   #4
Wheels 4 Food
 
Join Date: Nov 2008
Location: Clovis NM
Posts: 3,662
Elcaminoman has much to be proud ofElcaminoman has much to be proud ofElcaminoman has much to be proud ofElcaminoman has much to be proud ofElcaminoman has much to be proud ofElcaminoman has much to be proud ofElcaminoman has much to be proud ofElcaminoman has much to be proud ofElcaminoman has much to be proud ofElcaminoman has much to be proud of
Point gap is .019-.022 and the dwell would be 32.
__________________
Got to get back to work this playing around isn't paying the bills.

http://i975.photobucket.com/albums/a...Picture769.jpg
Elcaminoman is offline   Reply With Quote
Old 02-08-2010, 05:08 PM   #5
Rock Stacker
 
tplsblzrB75's Avatar
 
Join Date: Nov 2003
Location: Midland, TX.
Posts: 181
tplsblzrB75 will become famous soon enough
hmm

Quote:
Originally Posted by Elcaminoman View Post
Point gap is .019-.022 and the dwell would be 32.
thanks all
havent found it yet, but will look tomorrow if I have time.
The coil does nt have any power on the positive side.
Dang that is as far as Ive gotten.
__________________
Army trainin blazer 75 350/465/205 ridin on 35 with 4" lift,original NM borderpatrol green
72 ford rv van (granpaS', original)Mystery machine green (this will be my tow vehicle)

Wifes garage: 2005 Blk Rubicon TJ
tplsblzrB75 is offline   Reply With Quote
Sponsored Links
Advertisement
 
Reply

Bookmarks

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
No spark Jeromy Gas\Diesel Engine & Transmission 8 06-29-2008 04:35 PM
Ford V8 ignition help jesus_man Electrical, Heating & Cooling 4 07-05-2007 11:07 AM
Samurai ignition problems cjs96 Electrical, Heating & Cooling 3 07-30-2006 07:38 PM


All times are GMT -6. The time now is 11:42 PM.


3.8.8 - Powered by vBulletin
vBulletin Security provided by vBSecurity v2.2.2 (Pro) - vBulletin Mods & Addons Copyright © 2019 DragonByte Technologies Ltd.
Copyright 2002-2012 Texas4x4.org
 

SEO by vBSEO 3.6.0