Did the same thing on my early 69! Worked like a charm.
TA shims Problem (early 69)
Thread Starter
Instructor
Joined: Sep 2003
Posts: 166
Likes: 1
From: Las Vegas NV
TA shims Problem (early 69)
I tried to install my TA shims tonight and ran into a problem. I do not have a Hole for the cotter pin in the TA pocket. I found my old shims and they did not have slots on them. They have a bolt hole that the TA pivot bolt went thru. I can not image installing the TAs and shims at the same time.
The ASM shows the cotter key and has a note telling you to put them in from the Outbound side. Since my car is an early 69, I am wondering if this was an engineering change later in the year.
My shims will fit inside the pocket below the opening for the TA.
Should I drill holes in pocket sides noted by the X on the picture? (dbl click to expand) As you can see there was no cotter key.
Is this where they should be?
TIA for any help or insight on this problem.
The ASM shows the cotter key and has a note telling you to put them in from the Outbound side. Since my car is an early 69, I am wondering if this was an engineering change later in the year.
My shims will fit inside the pocket below the opening for the TA.
Should I drill holes in pocket sides noted by the X on the picture? (dbl click to expand) As you can see there was no cotter key.
Is this where they should be?
TIA for any help or insight on this problem.
Drifting
Joined: Oct 2007
Posts: 1,317
Likes: 22
From: Marina CA
I went down to our local hardware store and bought a 3/16" diameter drill bit that was 12" long. I think they called it an aircraft drill bit (don't know why!).
Worked like a champ on the 68 so it could run the slotted shims and have them locked in place.
Worked like a champ on the 68 so it could run the slotted shims and have them locked in place.
Melting Slicks
Joined: Dec 2000
Posts: 3,363
Likes: 303
From: Lansdale 19446 PA
2024 C3 of the Year Finalist- Unmodified
St. Jude Donor '10-'11, '15, '19
Thread Starter
Instructor
Joined: Sep 2003
Posts: 166
Likes: 1
From: Las Vegas NV
Update
Thanks for the tip on the 12" drill. I used a 3/16 for the outside hole and then used a 1/8 to drill a pilot hole in the inner pocket wall. By using the smaller drill, I was able to position the drill in the center of the shim hole on the inner side.
Problem: The TAs will hit the cotter pin before they bottom out on the bottom pocket lip.
Solution: I am going to use a separate #10-24 bolt to secure each set (inner/outer) of shims, with bolt head inserted from the pocket inside. This should allow free travel of TA to bottom pocket lip.
Problem: The TAs will hit the cotter pin before they bottom out on the bottom pocket lip.
Solution: I am going to use a separate #10-24 bolt to secure each set (inner/outer) of shims, with bolt head inserted from the pocket inside. This should allow free travel of TA to bottom pocket lip.
Thread Starter
Instructor
Joined: Sep 2003
Posts: 166
Likes: 1
From: Las Vegas NV
I am a paranoid idiot.
The cotter pins did clear just barely. I have been snake bit so many times on this car, I am now expecting trouble at every turn.
The TAs & Shims & Cotter pins are all in.
On to the E-brake cable, brake lines, and the rest of the rear suspension.
Hopefully it is down hill from here on out.
Thanks for the help. I would not even attempt this without the forum and its members.
The cotter pins did clear just barely. I have been snake bit so many times on this car, I am now expecting trouble at every turn.
The TAs & Shims & Cotter pins are all in.
On to the E-brake cable, brake lines, and the rest of the rear suspension.
Hopefully it is down hill from here on out.
Thanks for the help. I would not even attempt this without the forum and its members.
Racer
Joined: May 2004
Posts: 288
Likes: 0
From: Tigard OR
I am a paranoid idiot.
The cotter pins did clear just barely. I have been snake bit so many times on this car, I am now expecting trouble at every turn.
The TAs & Shims & Cotter pins are all in.
On to the E-brake cable, brake lines, and the rest of the rear suspension.
Hopefully it is down hill from here on out.
Thanks for the help. I would not even attempt this without the forum and its members.
The cotter pins did clear just barely. I have been snake bit so many times on this car, I am now expecting trouble at every turn.
The TAs & Shims & Cotter pins are all in.
On to the E-brake cable, brake lines, and the rest of the rear suspension.
Hopefully it is down hill from here on out.
Thanks for the help. I would not even attempt this without the forum and its members.
Racer
Joined: May 2004
Posts: 288
Likes: 0
From: Tigard OR
http://forums.corvetteforum.com/c3-t...tter-pins.html
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