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raa
Senior Member
Username: raa
Post Number: 84
Registered: 02-2007
| | Posted on Monday, October 13, 2014 - 01:09 pm: | 
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Does anyone have one of these little guys in his collection?
A friend sent this engine to me and asked me to shine it up a bit. It is missing the water pump but is other wise complete. I would love to borrow a pump or get dimensions and pictures so I can make a pattern and core box. I have a picture of the two cylinder Wonder and it appears to be just a duplicate of the single and is sporting a water pump mounted on the rear of the cylinder on a boss just like the single. Unfortunately there is not enough detail to do a good job of making a pattern.
At first I thought the head screwed on the cylinder since it is plated but at closer inspection it must have been plated with out plating the rest of the cylinder. Has anyone seen a engine dressed up with just the top of the cylinder/head plated like this? It appears to be a hot head with no cooling passage in the
head.
Thanks
Dick
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richarddurgee
Senior Member
Username: richarddurgee
Post Number: 3387
Registered: 11-2001
| | Posted on Tuesday, October 14, 2014 - 03:57 pm: |
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Dick,
R.M.Cornwell an established company began selling engines about 1905 stationary and marine engines with the trade name WONDER,by 1906 they declared bankruptcy and in 1907 formed a new company The Wonder Engine Co. still operated by R.M. Cornwell. I have not seen or have on record an engine with the R.M. Cornwell tag on it !
The base on your engine is the more traditional pedestal base unlike the wonder engines we have seen ? Cornwell made water pumps with his engines
they had the pedestal base and the no bolt cylinder head.
this is a 1906-07 marine engine with the wonder style base but it also has the boltless head ??
Not much help, info on the engines made by R.M. Cornwell is very scant !
typing Cornwell in the search here will bring up several discussions in the past !
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raa
Senior Member
Username: raa
Post Number: 85
Registered: 02-2007
| | Posted on Tuesday, October 14, 2014 - 04:22 pm: |
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Many thanks Dick for the help. I'm wondering if this engine was a stationary engine as shown in your first picture. There is no evidence of a thrust bearing and the coupling and shaft are so short there is no room for a eccentric and trust bearing. The coupling has both halves so it could have been a marine with a "Arkansas pump".
Dick |
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