Engine Kill switch? - JeepForum.com

 
LinkBack Thread Tools
post #1 of 12 Old 02-25-2009, 02:42 PM Thread Starter
SeaWulf
Registered User
1983 CJ7 
 
Join Date: Dec 2008
Posts: 1,019
Engine Kill switch?

Alright, I'm sick of adjusting the ignition switch, I can't get it right. Since the engine won't shut off I want to wire up a couple of switches, one to kill the engine, and one to completely shut off all power.

For the first, I would cut off the fuel pump, but the engine would still run until all the fuel in the carb was used up.... How else can I shut the engine off?


For the second, can I spice the switch into the power that goes to the ignition switch? This would shut off all electrical systems, correct?

SeaWulf is offline  
Sponsored Links
Advertisement
 
post #2 of 12 Old 02-25-2009, 03:25 PM
jatepper
Registered User
1985 CJ7 
 
Join Date: Mar 2007
Location: Tucson, AZ
Posts: 2,329
Do you have a factory tach? If so, then this is easy. Go under the dash and disconnect the red/white wire and this kills the jeep. I put a kill switch locked inside my tuffy console for this.

I dont think it will kill power to the fuel pump, but I think it just kills ignition power since they are routed in series.

1986 CJ7 Laredo - Auto 14k miles
1985 CJ7 Renegade - Auto 33k miles
1982 CJ8 Scrambler - T5 T-SPD
jatepper is offline  
post #3 of 12 Old 02-25-2009, 03:36 PM
davemci
Registered User
1978 CJ7 
 
Join Date: Dec 2008
Location: Grand Rapids, MI
Posts: 96
Open the coil by installing a toggle switch.
davemci is offline  
post #4 of 12 Old 02-26-2009, 09:49 AM Thread Starter
SeaWulf
Registered User
1983 CJ7 
 
Join Date: Dec 2008
Posts: 1,019
I don't have a tach, so that won't work.

What else can I do?

thanks btw
SeaWulf is offline  
post #5 of 12 Old 02-26-2009, 05:52 PM
gojeepin
Registered User
1983 CJ7 
 
Join Date: Feb 2006
Location: Indianapolis
Posts: 3,441
OK... it seems like I came into the room just in time for the punch line.

I assume your ignition switch used to work...

What caused it to stop working? Did adjusting the ignition switch ever work? Did you change your ignition box?

Vibration? Bump steer? Wandering? Read the article (sticky) on Steering, suspension, and driveline.
gojeepin is offline  
post #6 of 12 Old 02-26-2009, 10:04 PM Thread Starter
SeaWulf
Registered User
1983 CJ7 
 
Join Date: Dec 2008
Posts: 1,019
Quote:
Originally Posted by gojeepin View Post
OK... it seems like I came into the room just in time for the punch line.

I assume your ignition switch used to work...

What caused it to stop working? Did adjusting the ignition switch ever work? Did you change your ignition box?
Even in the "off" position, the ignition switch is still on acc. Adjusting the switch is hard as hell and I'm sick of screwing with it.

Copy/Paste from what I posted on my local 4x4 board


Quote:
So my ignition switch is screwed up, and there are only two positions, on, and accessory. I need to wire up switch(s) to kill the engine, and disconnect the battery (to prevent drain from being on acc.)


I'm fairly certian if I put the switch on the power to the ignition switch this would both shut off the engine and prevent battery drain. My thinking is that when the switch is powered the ignition circuit and radio draw power from the battery, but if they get no power they would shut off. This would allow for killing the engine AND prevent battery drain.

Sound right?


The wire in red, for reference

SeaWulf is offline  
post #7 of 12 Old 02-27-2009, 09:29 AM Thread Starter
SeaWulf
Registered User
1983 CJ7 
 
Join Date: Dec 2008
Posts: 1,019
I hate to bump, but I need help
SeaWulf is offline  
post #8 of 12 Old 02-27-2009, 10:52 AM
Oily
Registered User
1985 CJ7 
 
Join Date: Jun 2006
Location: Kerrville, Texas
Posts: 1,577
Quote:
Originally Posted by SeaWulf View Post
Adjusting the switch is hard as hell and I'm sick of screwing with it.
Actually, it is simple. It also sounds like something that you should do so your Jeeps works as it should. A cut off for theft deterrent is one thing but adding more wires to do the same thing as the wires that are there is just asking for more things which can go wrong.
What problems are you having adjusting your ignition switch?
Oily is offline  
post #9 of 12 Old 02-27-2009, 12:17 PM
neonistic
Registered User
1981 CJ7 
 
Join Date: Feb 2009
Location: Hawaii
Posts: 40
I know that you don't want to deal with the original switch, but replacing it may be all that you need to do. I had a similar problem on a '76 Wagoneer. The new switch was ten times easier to adjust. For a cutoff switch, I would use a wire to the distributer from the ignition module. For power, you can run the power wires through relays and run the signal wire in series.

You're going to hate Fridays!
neonistic is offline  
post #10 of 12 Old 02-27-2009, 12:23 PM
John Strenk
Moderator
 
John Strenk's Avatar
1976 CJ5 
 
Join Date: Feb 2005
Location: Shalersville Ohio
Posts: 15,539
Quote:
Originally Posted by SeaWulf View Post
I don't have a tach, so that won't work.
What else can I do?
thanks btw

That's even better as the plug is still there is the tach is not. Seperate the tach plug and the engine won't run but it wont stop your battery drain problem. only a new switch will.
John Strenk is offline  
post #11 of 12 Old 02-27-2009, 06:23 PM Thread Starter
SeaWulf
Registered User
1983 CJ7 
 
Join Date: Dec 2008
Posts: 1,019
Quote:
Originally Posted by John Strenk View Post
That's even better as the plug is still there is the tach is not. Seperate the tach plug and the engine won't run but it wont stop your battery drain problem. only a new switch will.
Just tested this and it works! thanks!

I'm gonna wire up a switch on the tach to kill the engine, and then get a battery disconnect and put it on the hood.
SeaWulf is offline  
post #12 of 12 Old 02-27-2009, 09:07 PM
davemci
Registered User
1978 CJ7 
 
Join Date: Dec 2008
Location: Grand Rapids, MI
Posts: 96
I don't know if you have the stock ignition but this seems to be a problem Jeephammer mentioned in the distributor mod here. He mentions that the engine runs on even with the ignition switch turned off. Toward the bottom of the link there is a picture of the ignition cable with a diode installed. This cured the engine run on problem. If all else fails I'd just install an in-dash ignition switch instead of a bunch of toggles.

edit: It's actually the exciter wire.
davemci is offline  
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the JeepForum.com forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid e-mail address for yourself.



Email Address:
OR

Log-in









Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.




Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page



Similar Threads
Thread Thread Starter Jeep Forums Replies Last Post
installing a kill switch/84cj7 FLBOY Jeep CJ Forum 1 05-20-2009 05:24 PM
tbi oil pressure kill switch how to 1986cj Jeep CJ Forum 1 02-02-2009 10:20 AM
Magnetic Kill Switch TAYLWALKER Jeep CJ Forum 17 12-22-2008 08:59 PM
Kill Switch w/ HEI Ign Feenix Jeep CJ Forum 1 11-27-2005 11:22 AM
Kill switch Incredable Jeep CJ Forum 7 08-03-2003 10:42 PM

Posting Rules  
You may post new threads
You may 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 Off
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome