All,
If/when you find part numbers for the 39 Six master cylinder kits, please share (and add to the Parts X Ref page).

Kevin,
1938 Six: Chandler Groves, Type AOC-2, codes 1-AD and 1-BA

1939 Six: Chandler Groves, Type AOC-25, codes 119-1, 119-3,119-4, 119-5

This taken from the factory 38-39 series shop manual.

I hope that all fits in the field oh, but if not totally understand how you may have to parse or truncate it.

Thanks so much for making all this possible. Pat

Kevin,
Love the decoder!
I'd like to offer correction to the source data for 39 Six; not urgent.

I noticed the Carb information field is populated with "Carter WA-1."

WHen new from the Packard factory, the six carried a Chandler Groves. Carter and Stromberg had aftermarket offerings (WA-1 577 or 530 and BXOV-26 respectively) that were specifically for Packard. As I understand the history, Packard was having issues with CG and also changed its supplier quickly for 1940 and made the Carter and Stromberg offerings standard replacement parts for the 39.

Sometime during model year 1948.

Which dimensions? If more than the centerlines of holes in the vertical link, thread sizes its a bit more tricky with the tapered shafts.
Pat

The pointer attaches to the tiny speed cup shaft just by press-fit. Typically I will rotate the pointer counter-clockwise as I press it on, then adjust to 0 miles per hour.
I suspect I have both the speed cup if it's broken and the pointer for your car.

For what it's worth, typically when is speedometer comes in to my shop with a missing needle, the tip of the speed cup shaft is also broken off. I hope this helps. Pat

Leedy, very well communicated points on History, Snob Appeal and how business is not based on wishes, but reality. Think you should paste that directly into an email to the Hemmings writer.

I am saddened by the direction Hemmings appears to be going under its new leadership. Good writers being let go and perhaps the quality of writing slipping. I hope it retains its legacy value despite its younger generation leadership that doesn't participate in the hobby directly.

That's my concern.

Well done, Ken. Yeah...burnt knuckles are part of the reward.

I too am curious about the use of Evaporust as a 'running treatment' to the internals of a cooling system. I use this stuff all the time on heavy parts as well as delicate speedometer parts, but never for this. Guess it makes sense, but was unaware of whether it could withstand engine temperatures and maintain its rust removal capability.

May consider this after next flush and fill. Keep us posted.

Again, great work.
Pat

By the way, early fall and late spring are the busiest times for my speedometer repairs. Turn around time depends on how many jobs are coming in and the degree of service needed. I try to get the easy jobs turned around and back out as quickly as quality allows.

Fall are the early birds who are just taking their cars off the road and doing repairs. Late spring seems to be the time lots of people remember that they need to get their speedo serviced.

Pat

Happy to take a look at it.
Pat
Bill's Speedometer Shop