AA-17287 Thrust Washer (speedometer driving gear)

AA Ford Discussion Group relating to the repair and restoration of your AA Ford.
Post Reply
User avatar
Neil Wilson
Posts: 2760
Joined: February 5th, 2003, 9:42 pm
Body Type: 82-A/89-A
Model Year: 1930
Location: Boulder, CO
Contact:

AA-17287 Thrust Washer (speedometer driving gear)

Post by Neil Wilson » October 24th, 2019, 7:41 pm

There is a AA-17287 Thrust Washer (speedometer driving gear) listed starting in the 6/15/30 Ford Parts Price List. This part is shown to be for 1929-1930. There is no Thrust Washer listed in prior parts lists. In the 1932 list, this Thrust Washer is shown to be to 1929-1932.

I am guessing that AA-17287 Thrust Washer was for 1930-1932 (not for 1929).

Anyone have information?

Also, should the Thrust Washer be on the front or rear side of the speedometer driving gear?
Regards, Neil Wilson
______________________________________
neil@aafords.com - use this email for contact
https://aafords.com/ - Ford Model AA Truck Club @ aafords.com

Bob C
Posts: 1278
Joined: April 24th, 2003, 11:50 am
Body Type: Mail truck, Stake tr
Model Year: 1931
Location: SO CAL

Re: AA-17287 Thrust Washer (speedometer driving gear)

Post by Bob C » October 25th, 2019, 8:10 am

The MAFFI site shows the drawing date of 5/13/1929.

User avatar
Neil Wilson
Posts: 2760
Joined: February 5th, 2003, 9:42 pm
Body Type: 82-A/89-A
Model Year: 1930
Location: Boulder, CO
Contact:

Re: AA-17287 Thrust Washer (speedometer driving gear)

Post by Neil Wilson » October 25th, 2019, 12:55 pm

I also find the AA-17286-B Retainer (speedometer drive gear) has an engineering drawing dated 5/13/29. This is the retainer which is installed in a grove on the drive shaft rather than installed in a grove in the torque tube.

So, it seems that both the AA-17287 thrust washer and AA-17286-B retainer started production in May 1929 (or shortly after). This would mean that the drive shaft would have been redesigned to include a grove for the retainer.
Regards, Neil Wilson
______________________________________
neil@aafords.com - use this email for contact
https://aafords.com/ - Ford Model AA Truck Club @ aafords.com

Post Reply