| Author |
Message |
    
Mark S
Senior Member
Username: marks
Post Number: 107
Registered: 03-2002
| | Posted on Saturday, September 05, 2009 - 07:03 pm: | 
|
Hello All,
Any information on this engine would be much appreciated. Somebody said Gray but weren't sure.
The engine is in Australia, fastener threads are fine.
Cheers,
Mark S
 |
Eric Schulz
Senior Member
Username: eric_schulz
Post Number: 57
Registered: 01-2007
| | Posted on Saturday, September 05, 2009 - 09:41 pm: |
|
Look here:
http://www.oldmarineengine.com/discus/messages/3454/100977.html
Eric |
Mark S
Senior Member
Username: marks
Post Number: 108
Registered: 03-2002
| | Posted on Sunday, September 06, 2009 - 01:10 am: |
|
Thanks Eric,
As always quick and helpful. I hadn't seen that post before.
Regards
Mark |
Ernie
Senior Member
Username: ernie
Post Number: 1030
Registered: 01-2002
| | Posted on Sunday, September 06, 2009 - 05:21 pm: |
|
Search for US Motors, US Motors Falcon, Gray, Bridgeport and Ace OK. Maybe even more. Lots of pics and info on OME of this style of engine. Note some of the pics aren't backwards. These engines were made by different mfrs as mirror image. Maybe a good way to steal a design and get around patent laws??? |
Richard A. Day Jr.
Senior Member
Username: richardday
Post Number: 798
Registered: 11-2003
| | Posted on Monday, September 07, 2009 - 08:42 am: |
|
Why do I think this engine was converted to a stationary hence the absence of the water pump and the Shade Tree Mechanic appearance of the magneto mounting.
The flyball governor end of the camshaft would have driven a Cuno timer in the marine version. |
Mark S
Senior Member
Username: marks
Post Number: 109
Registered: 03-2002
| | Posted on Monday, September 07, 2009 - 06:53 pm: |
|
Thanks Ernie and Richard,
I figured that there should be a timer where the governor is. Interestingly there is a casting fault with the cylinder. The waterjacket core was either not placed correctly or moved during casting.
So the outside of the waterjacket on the rear of the cylinder is very, very thin and porous. I wonder if this is why it ended up as a stationary engine as it would only have lasted a short time in a salt water environment.
Mark S. |
Richard A. Day Jr.
Senior Member
Username: richardday
Post Number: 799
Registered: 11-2003
| | Posted on Monday, September 07, 2009 - 07:43 pm: |
|
One point I forgot to mention there appears to be a plate blanking off the crankcase breather valve. I wonder how it would breath. The oil dip stick it seems to me would probably vent a lot of oil. As well as the valve push rod guides. Is their a breather valve in the oil filler pipe? |
Mark S
Senior Member
Username: marks
Post Number: 110
Registered: 03-2002
| | Posted on Tuesday, September 08, 2009 - 07:12 pm: |
|
Yes Richard there is a breather in the oil filler pipe, The cap has @ 1/8" hole.
Now to find a Cuno timer to replace the governor.
Cheers,
Mark S. |
Richard A. Day Jr.
Senior Member
Username: richardday
Post Number: 802
Registered: 11-2003
| | Posted on Tuesday, September 08, 2009 - 07:35 pm: |
|
But is there a check valve in the oil fill pipe?? When the piston goes down it compresses the air in the crankcase forcing air out the "breather" through the check valve. When the piston goes up it creates a vaccuum in the crankcase as the check valve closes. The vacuum thus created tends to keep the oil in the crankcase instead of spewing out every possible location filler cap, valve push rods, cam shaft, crankshaft etc. In some engines this process builds up and dies away in others once the vacuum is established there is little activity resulting in little or no oil leakage. |
Mark S
Senior Member
Username: marks
Post Number: 111
Registered: 03-2002
| | Posted on Tuesday, September 08, 2009 - 11:58 pm: |
|
Rihard there is a check valve, under the cap. Very simple it's a circular piece of leather, held at a single point.
BTW the engine runs very well, have put a Schebler on it and an impulse mag. Idles very well and nearly always starts first swing of the flywheel.
Mark |
