| Author |
Message |
    
Paul Gray
Senior Member
Username: paulgray
Post Number: 138
Registered: 05-2003
| | Posted on Sunday, May 05, 2013 - 08:13 pm: | 
|
Picked this up at the Calvert show this weekend. It originally belonged to Mr. Buck. Four inch bore x 4 in stroke, three piece rods , three port charging. What is really unusual is the aluminum crankcase and the mounting arms. I was thinking either marine or early auto??? |
Paul Gray
Senior Member
Username: paulgray
Post Number: 139
Registered: 05-2003
| | Posted on Sunday, May 05, 2013 - 08:18 pm: |
|
Everything is punch marked and only assembles one way. The rods are a piece of 7/8" threaded stock with bronze ends threaded in with a locknut. The short side shaft has a slight taper, no flywheel came with it. The cranking pin in the long shaft side has me thinking auto....but who knows. Perhaps professor Durgee can offer his wisdom... |
miro forest
Senior Member
Username: miro
Post Number: 697
Registered: 11-2001
| | Posted on Sunday, May 05, 2013 - 09:48 pm: |
|
The mount points mid-way up on the crankcase are a give away for marine use, I think. Is there a thrust bearing at the aft end? The crankshaft looks to be a bit small for marine use - dunno?
miro |
Paul Gray
Senior Member
Username: paulgray
Post Number: 140
Registered: 05-2003
| | Posted on Monday, May 06, 2013 - 07:24 am: |
|
What is odd is the output side (opposite the flywheel side with the threaded section for lock nut) has the crank pin on the piece of shaft to the right of the chain sprocket. |
RichardDurgee
Senior Member
Username: richarddurgee
Post Number: 3025
Registered: 11-2001
| | Posted on Monday, May 06, 2013 - 12:51 pm: |
|
*
Paul
These old pre 1905 marine engines are the fascinating ones and I believe this one qualifies ?
Saw the post last night and spend some time trying to ID it but can't find a match yet ?
Looking at the Engine with the tall profile, removable head and the skip tooth sprocket its design says early to me !
Now when you consider that early, cast aluminum crankcase, extended mounting arms, two cycle and three port, the first name that surfaces is ROBERTS ? He designed numerous engines in his career before actually going into business with the Roberts name about 1907-08!
This is 1908 photo of a roberts headless eng and although the cranckcase and arms are different it shows his penchant for the design !
In 1903-05 don't remember exact year the 3 port patent holder Day from england came to US to enforce his rights and charge several engine mfgrs patent fees, this is a list of those companies.
When I ran Elmore Manufacturing Company through my data base Roberts name is mentioned in a note that says Roberts resigned from the Company in later part of 1903 ?
Lots of info on Elmore on Google search but scarce engine photos ?
Later 1908 Elmore headless engine , are those mounting arms between the exhaust down pipes similar shaped as engine in discussion ?
----
This is only a supposition and it may be a very different design and mfgr ? But I will be on the road for a few days moving some equipment and wanted to answer with preliminary info !
* |
Paul Gray
Senior Member
Username: paulgray
Post Number: 141
Registered: 05-2003
| | Posted on Monday, May 06, 2013 - 04:14 pm: |
|
Thanks for the leads Rich. I'll search within the names for the Day licensees. What is strange is the flywheel apparently goes on the rear of the engine. The three piece rods are also a clue to its age IMO. |
Keith Tollett
Member
Username: boatbum
Post Number: 25
Registered: 05-2006
| | Posted on Tuesday, May 07, 2013 - 01:43 pm: |
|
Gosh, looks a lot like a early VanBlurk engine.
Keith |
Paul Gray
Senior Member
Username: paulgray
Post Number: 157
Registered: 05-2003
| | Posted on Monday, January 15, 2018 - 07:12 pm: |
|
Making some progress on the old girl. Have the rods and Pistons installed. Had to recut all the ring grooves as they were all 0.387" wide. I added ring spacers and 3/8" rings. Pinned all the rings. Made the flywheel this past summer...my mechanical license. Tapered hub with a 1-1/16 X 14 TPI nut.  |
Paul Gray
Senior Member
Username: paulgray
Post Number: 158
Registered: 05-2003
| | Posted on Monday, January 15, 2018 - 07:15 pm: |
|
This has to be someone's project engine. All the mating surfaces are marked with numbers. Looked up Roberts engines and they're close, but so cigar as they say... |
miro forest
Senior Member
Username: miro
Post Number: 952
Registered: 11-2001
| | Posted on Monday, January 15, 2018 - 11:05 pm: |
|
Nice clean flywheel - 2 cylinder engine doesn't need counterweight.
How did you "do" the manifold ?
Or did the engine have one when you got it?
miro |
Paul Gray
Senior Member
Username: paulgray
Post Number: 159
Registered: 05-2003
| | Posted on Tuesday, January 16, 2018 - 04:16 pm: |
|
No port hardware when I got it. This is what I came up with based on similar engines of the time. Port covers made from cast iron and matched drilled as none of the mount holes were symmetrical. TIG welded from fittings and since then, threaded inserts for the carb and exhaust pipe.  |
Paul Gray
Senior Member
Username: paulgray
Post Number: 160
Registered: 05-2003
| | Posted on Tuesday, January 16, 2018 - 04:22 pm: |
|
Forgot to add all the 1/2" screw threads are 12 tpi like the head bolts. So from my reading this predates ~1907?? |
J.B. Castagnos
Senior Member
Username: jb_castagnos
Post Number: 1355
Registered: 07-2002
| | Posted on Wednesday, January 17, 2018 - 01:40 pm: |
|
Looks good Paul, should be running soon. |
