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Supposedly the “electric” clutch and overdrive are working as they should. I am not familiar with how they are supposed to work but will read up on the info pasted on this site.
If you have an early owners manual the OD and EC might get a mention but typically options were not well covered in the owners manuals but more relied on a separate page or booklet. Early manual info may be for the R9 OD which was replaced a few months into 22nd series production by the R11 OD you have. The two units do the same thing but are completely different in how they do it. Early 22nd series manuals which had the R9 info could have been provided R11 info by a supplemental page or an
instruction card hung on the gear shift lever. Pages or cards may have disappeared over the years.
EC is in a similar situation but has a longer time spread. While they ultimately do the same thing there is a big difference in components and operation between the pre and post war EC units. EC was first introduced in the 41 models and there is an introductory description of the prewar unit in the January 15, 1941 Service Letter. If covers the basics of operation but when that article gets to the details of what and how each item works, unless you just want to know the details for comparison with the later unit it is best to skip on. The postwar unit is considerably refined and simplified so does not have a lot of the prewar components.
Prewar units relied primarily on electrical switches and solenoids for each gear to modify the engagement speed and strength for the various conditions. In the postwar unit there is only one solenoid to cut the vacuum on or off to enable or disable the unit. Modification of strength and speed was done entirely mechanically by a multi stage valve in the control unit operated via linkage from the accelerator pedal.
For the postwar unit Packard provided just bare info in the operators manual. For details, probably the best information will be in the training manual entitled "Clutch and Electromatic Clutch". There is a photo and operation details of each component so you can see if your unit still has all the necessary pieces. After Packard went away, if the EC was non functional, frequently items were removed and discarded if something would be easier to service without an EC component in the way.
https://packardinfo.com/xoops/html/downloads/ClutchAndElectromaticClutch.pdfThis Post was from: https://packardinfo.com/xoops/html/modules/newbb/viewtopic.php?post_id=245425