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Unidentified Engines

CWC Casting, but More History Unknown


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  #1  
Old 03-26-2018, 11:38:38 PM
kevin993 kevin993 is offline
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Default CWC Casting, but More History Unknown

First time poster, so be gentle. I'm hoping my engine can get an identity and get moved elsewhere soon!

Looking for engine history for an engine currently housed in an old German racecar. The car is a 1920 Siemens Protos that apparently was raced in 1921 at Avus (near Berlin). The car was thought lost until found in 1993 in a building slated for demolition. A friend recently acquired the car, but we know little about its history.

The engine has several CWC markings which is a little odd for a German car. Our guess is that it is from an American military truck or tractor that was sourced and installed post-war. The engine is a 6 cylinder 6.3 liter OHV unit.

I'm hoping that decoding the CWC casting codes might be the key, but I don't have a decoder. Pictures attached below and any help greatly appreciated. Thank you!
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Old 03-26-2018, 11:40:23 PM
kevin993 kevin993 is offline
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Default Re: CWC casting, but more history unknown

More photos:
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Old 03-27-2018, 06:24:31 AM
Barnbikes Barnbikes is offline
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Default Re: CWC casting, but more history unknown

Campbell, Wyant and Cannon Foundry, Muskegon, Michigan. They made engine castings for multiple companies.
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Old 03-27-2018, 09:24:41 PM
kevin993 kevin993 is offline
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Default Re: CWC casting, but more history unknown

Yep - have the CWC connection, but can't figure out which company they would have poured for. One idea was for Continental, but a few have ruled them out because Continental wasn't known for OHV engines.
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Old 05-19-2018, 06:41:14 PM
kevin993 kevin993 is offline
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Default Re: CWC Casting, but More History Unknown

Bumping this story for a bit of an update...

Made contact with someone at CWC who confirmed that many old records were destroyed. They were also able to help with diagnosing some of the casting codes. Some clearly reflected a year and day of the year of manufacture. A single digit gets you to the last number of the year, but they do NOT clearly designate the full year of manufacture. In other words, the codes tell us that the engine block was cast in the 6th year of the decade, but they don't tell us whether that means 1936, 1946, 1956, etc.

Other codes appear to be unique to the client for whom the engine was cast, but we don't know what those mean yet.

We've been unable to trace the engine to any production road car or truck. CWC cast many engines for military vehicles, so our working theory is/was that the engine came from some kind of US military truck or tractor. The engine is a big thing - straight 6 cylinder and a 6.8 liter size.

We made a visit to a local museum with lots of US military gear (mostly WWII and later) with thoughts that a particular truck might fit the bill. On site, the guy there told us that no way the engine was from that truck and no way was it from WWII - he wasn't familiar with it and thought it clearly looked older.

If all that is correct, then our engine was made before WWII which means 1926 or 1936. And that's where we are at this point... Not sure where we go from here, but any ideas are welcome!
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