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1973 ignition cylinder replacement
#1
Hello All, I just bought a new ignition cylinder for my 73. I know I've replaced one or two of them in the past but not in the past 35 years :?). So who has the downlow on their replacement?

1973 Mach 1 429 cu. in. H.P. TBD, C6 Reverse Manual Valve with 3500 Stall Tranny, 9" rear 3.90 PosiTrac
2007 Mustang GT Convertible Premium
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#2
This is what I know. I will be doing the same thing shortly. You have to remove the steering wheel, turn the key to on and insert a paper clip into the pin hole to release the cylinder. There are 2 versions for the 73 so after May of 73 they went with a sightly different design. You need to have the right one. Good description here:

http://www.mustangmonthly.com/techarticl...ewall.html

-jbojo

-john
(jbojo)
351C 4V cc heads, 10.5 : 1 CR, 290 Herbert cam, Flat top forged pistons, forged connecting rods, Atomic efi,
C6 with Gear Vendor overdrive, 3.89 Tru Trac, Hooker Super Comp with 2 1/2" Pypes Exhaust.        

Some Mod pictures can be seen at:

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#3
I just did this on my 73, pre-May design. jbojo is right on the money. Pull the steering wheel, put the key in the ignition, and switch it to ON (Though I thought I went to ACC could be remembering wrong) and press the little pin. The pin is located in a small hole on the right side of the column, it's just a retainer pin to keep the cylinder from coming out, I ended up using a coat hanger because mine was pretty stuck.

Also, if you don't have the original keys, good luck! I didn't have them for mine, so I had to drill out the cylinder, wasn't hard, just used a lot of patience to make sure I didn't drill anything I wasn't intending to replace. Good luck!

2013 Ford Focus SE Flex Fuel 5spd - Daily Driver
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#4
follow the link below, Mark73 has a page from the service manual with detailed instructions.
http://www.7173mustangs.com/thread-ignit...n+cylinder

[Image: 2zem9nk.jpg]
Iyman
1972 Mustang convertible run_horse  
Visit the Mustang Car Club of New England Facebook Page

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#5
Thanks for all the great info! Now I gotta check the build date and ensure I got the correct cylinder!!!

1973 Mach 1 429 cu. in. H.P. TBD, C6 Reverse Manual Valve with 3500 Stall Tranny, 9" rear 3.90 PosiTrac
2007 Mustang GT Convertible Premium
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#6
I need to replace my ignition cylinder on my 73 mustang. I read all the posts but mine doesn't have a tiny pinhole on the side. now what do I do?
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#7
Joe mustang;242080 Wrote:I need to replace my ignition cylinder on my 73 mustang. I read all the posts but mine doesn't have a tiny pinhole on the side. now what do I do?

You have to remove the steering wheel to get to the pin hole.

-john
(jbojo)
351C 4V cc heads, 10.5 : 1 CR, 290 Herbert cam, Flat top forged pistons, forged connecting rods, Atomic efi,
C6 with Gear Vendor overdrive, 3.89 Tru Trac, Hooker Super Comp with 2 1/2" Pypes Exhaust.        

Some Mod pictures can be seen at:

  Reply
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