Plan C is to go to Studebaker/Packard archives in South Bend to get the air compressor drawing which I will leave to others.

Source:

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Plan B: Below is a 1927 catalog page describing the B&B line of pulley driven air compressors courtesy of the Smithsonian. Unfortunately the catalog does not contain any dimensions. You can see an illustration showing and electric motor driving a foot mounted horizontally split, vertically arranged air compressor similar to our area of Packard interest. We see 1cyl and 2cyl callouts for the electric motor driven compressor. HH56 told us the slot of the air compressor mounting bracket were 3 1/2" wide by 6 3/4' long with out being too specific. Based on what I see, I am going to GUESS our Packard air pump is no smaller than 2.64in3 based on a 1.625" bore and 2.0" stroke, 2cyl inline config. Stats = STandard ATmosphereS. 20 Stats = 294 psi.

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I am intrigued how the compressor pulley is attached to the shaft (straight key?) and how it is retained axially on the shaft (hex cap screw with washer and lockwasher?) in a drilled and tapped threads in the shaft end.

Below is photo 235 (of 231-239) from this website's Photo Archives, for a 1940 Packard 120, 1801 Touring Sedan shown at Warren OH in 2007. This is NOT from a 1940 6 cylinder Taxi. This photo is my first inclination the air compressor is a 2 cylinder in-line. I imagined it to be one cylinder.

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Reviewed microfilm at Cleveland Public Library today re: Bishop & Babcock. No help on compressor CID. Going to Plan B.

PackardDon: thanks for alternate photo and tip on Studebaker resources (gamechanger).

HH56: thanks for correcting PN, approximate dimensions and compressor upgrade work-arounds.

I know what to do next.

Bishop & Babcock air compressor: Does anyone know the mounting hole dimensions on the bottom feet of the 40-42 air compressor? These dimensions will be helpful. If no one has these dimensions, does anyone have access to part number 25431 which is the engine mounted bracket for the compressor and shown below. Ideally someone could measure the dimension need to my supplied reverse engineering sketch. The pic is taken from U-Tube video:2009 Greenwich Concours d'Elegance - 1940 Packard first car with air conditioning.

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Thank you.

Okay. So what does am "E" engine serial number suffix letter designate on a 327 in3 engine? Do we have a key to the the possible list of suffix letter used?

archive,

I will investigate.

The following post about B&B is from Cleveland: The Making of a City by William Ganson Rose and Kent State University Press, 1950 p.423.

Turns out my employer's employee parking lot is directly across the street from one of the former B&B buildings. Who knew? Leece-Neville was also located on Hamilton Ave. but to the east of us. Cleveland Twist Drill was located close by on E49th Street.

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