Shift Rod Coil Pin Hole ? Options

[cary]

Good Morning,

Yesterday was supposed to be the day Mike drives off in his freshen up 72 daily driver.
Didn't quit go as planned ................ I finished the shift rod install before lunch. Then he and his right hand man, O'Ryan went about installing the hoods. Then it was time to dial in the shift linkage adjustment. Set about using what I call the Chris Neutral adjustment. Has work flawlessly for a long time. Not This Time.


Looks like Chris might have been converted to the 4th gear club.


After more time I want to admit (or charge for) we couldn't get it to completely shift into the 1-3-5 plane. Pulling my hair out ............... this isn't supposed to be that tough. Long story short. Finally determine its not the linkage adjustment. I have a nice and tidy neutral. Can feel all gears. Just won't stay in lower plane. So we finally pull off the shift cover. Remove the shift rod. Then go about shifting the gear box by hand. Still no lower/back plane. Gear box is toast. (IMG:style_emoticons/default/ar15.gif) (IMG:style_emoticons/default/ar15.gif) (IMG:style_emoticons/default/ar15.gif)
Mike is amendment it worked great when he drove it in San Diego and when he drove it up here years ago. (IMG:style_emoticons/default/idea.gif) (IMG:style_emoticons/default/idea.gif)

So I grab the ball pin and watch it turn. Guess what. The ball pin is turning and not the shift rod. That don't look right. So I go over and check other gear boxes standing in the corner. No Play. Hmmmmmmmmmmmmm. I did have a coil pin, not just a roll pin.







Shifted great last time I drove it : New Data Points

• Gearbox has been moved into a 72 tail shifter tub
• All the linkage was moved from the shifted great last time car and installed into 72 tub
• New Tangerine Racing firewall bushing
• New GPR Oilite Bear Bracket bushing

Pin was tight drifting it out. But only in the ball pin I assume.

The hole seems to be wallered up and down. Can it be fixed ?

New 6 * 31 coil pin ?

Can I enlarge both holes to accommodate a 1/4 * 1 1/4 coil pin ?

Brain Trust : Whats been done before ?

[cary]

I took the tightest one from the Rothsport collection. Plus the loose rod and hardware.
Than ran the old MiddleMotors spare thru the jet washer a few times to get it cleaned up.
Then went ahead and pulled the bearing bracket without the rod from the spare. Once the bracket was out of the way, the rod came right out. Into the jet washer they went.
Just like Doc said.

Seals and pins are inbound.

Then went ahead and drained the Swepco out of Mike's gear box.

So here's where we're at :

Wednesday night Mike and I had a moonlighting session using a tighter pin from the Rothsport stash. I adjust the linkage so I have the longest rearward shift I can get.
Still the same. Won't actually shift into 1-3-5. I can hold it in gear pulled back on the shifter. But not really engaged.
So I unbolt the all the linkage and move it out of the way. Now I attempt to shift into 1-3-5 by hand. No go ............. Just wont go in. (IMG:style_emoticons/default/hissyfit.gif) (IMG:style_emoticons/default/hissyfit.gif) We're done for tonight, lets go home.

So last night after I drain out the Swepco I can shift into 1-3-5 without an issue ... (IMG:style_emoticons/default/headbang.gif) (IMG:style_emoticons/default/headbang.gif)

The only other tidbit to add. Gordon Ledbetter stopped by Rothsport on Monday and I ran my issues past him. Without seeing and feeling it he didn't have much to go on. But he did say both pins have to be tight with zero play. And you need both the upper and lower washer. Upper washer is NLA. Lower available used. I don't think any of the shift rods have the upper washer on them.