Got the manual steering box mostly cleaned up today - dated June 12. Also found what I believe to be an interesting assembly line thing. The bolts that hold the two-piece rotor together were different from one side of the car to the other.

Ref#189
Found my pic of the finished dustshields,,disreguard my steering box bolt markings,,old habit.

This one took a while.......
 

Finally wrapped up my radiator fin project. I think my needle nose hit every one of the 18,000+ fins on this critter:headbang: Original core just had a few pin holes that needed repaired. It was a good project to pick away at while I waited for the compressor to cool down or some paint to dry. Here's some before/after pics....

Looks great.

Wow! Nice job��
Straightened mine using toothpicks, was a little leary of the needle nose. Only leaks,after pressure testing were a few pinholes around the solder joint, top hose.

Looking good.

Great job��

Used toothpicks for mine, was a little leary of needle nose. Gotta laugh, cause yea...tedious. Then you flip it over for the otherside. I lucked out and only found a few pinhole leaks around the solder, top hose.

Never leaked all the years it was in the car, but worth the time pressure checking prior to reassembly . If not,,guess how that turns out.

Looks awesome, nice job!

Front subframe update...
 

Got my front subframe back from a "bake" and bead blast session today. Turned out really nice and clean. Frame is in great shape with only minor pitting in a few places. Car should be getting some color on it in a few weeks. Won't be long and I can turn the ratchet the other direction and start putting this thing back together!:biggthumpup:

It's looking really good. I always love the look of a freshly restored subframe when it's all going back together. Painting or powder coating the subframe? Body is looking close to having color.

I have been enjoying reading up on this find and built, very interesting! While I cannot offer any COPO specific I do have some knowledge on wiper motors :)

So the foil labels started coming out sometime in early 69. Prior to that part numbers were stamped on the motor end plate.

The top line is the part number 20043206 looks like a Buick Apollo or similar.
bottom line is Julian date 309 (beginning of Nov), single digit is the year (I guess 1976)
Last item 5A is a line or plant code.

For a non-RS car you want to find a 5045572 labeled motor. Luck!