Ignition question
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Freshman User
Joined: Aug 2003
Posts: 25
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Ignition question
my 1970 f-100 didn't have an ignition when I picked it up, so i decided to use one out of a 73, every wire matched up except a purple one on the 73 and a orange thicker one on the 1970. is it impossible to use an other ignition besides one from 1970.
Posting Guru
Joined: Jun 1999
Posts: 2,415
Likes: 3
From: Comox Valley, Canada
Ignition question
No I meant it sure is possible....sorry for misunderstanding.
I have a 76 ignition switch in my 69.......now where did I put that schematic I made when I re-wired it.......
I have a 76 ignition switch in my 69.......now where did I put that schematic I made when I re-wired it.......
New User
Joined: Aug 2003
Posts: 1
Likes: 0
From: SB Calif
Ignition question
1972 ford f250 rangerxlt had a 390cu in motor in it it blew up took it to be rebuilt they asked my mother if they could give her a rebuilt 352 same size as the 390 but more fuel ecanomical but before it got 500 miles on it we started having trouble engine had to be takinapart 3times the shop is saying pre combustion cracked the heads twice this time it cracked a cylinder what do i need to troubleshoot to fix this problem never had this before andr9o(No Email Addresses In Posts!) please help thank you
Senior User
Joined: Jun 2003
Posts: 281
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From: Bearspaw (near Calgary)
Ignition question
Sparky, I would sure like to see that schematic as well! I've put a 76 ignition into my 69 and I'm having trouble getting it to run. So if possible could you send it my way?
Thanks
Thanks
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Posting Guru
Joined: Jun 1999
Posts: 2,415
Likes: 3
From: Comox Valley, Canada
Ignition question
Ok of course I lost the schematic.....cant wait til i have a problem me and Mr. Multimeter will have a date for sure 
I checked the switch and this is how it is wired.
I used the 76's switch and connector and left about 1-2 inches of each wire on the connector.
Then spliced the wires from the switch to the truck wiring as follows:
Large yellow to large yellow
Large black/green stripe to large black/green stripe
purple/white stripe to purple
red/green stripe to red/green stripe and large pink
red/blue stripe to red/blue stripe
There is another wire, small black/green stripe, on the 76's switch connector that I didnt use until I added duraspark to the truck then it was used to power the ignition module in the "run" position.
Hope this helps.
I checked the switch and this is how it is wired.
I used the 76's switch and connector and left about 1-2 inches of each wire on the connector.
Then spliced the wires from the switch to the truck wiring as follows:
Large yellow to large yellow
Large black/green stripe to large black/green stripe
purple/white stripe to purple
red/green stripe to red/green stripe and large pink
red/blue stripe to red/blue stripe
There is another wire, small black/green stripe, on the 76's switch connector that I didnt use until I added duraspark to the truck then it was used to power the ignition module in the "run" position.
Hope this helps.
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