| Author |
Message |
    
Mark S
Senior Member
Username: marks
Post Number: 120
Registered: 03-2002
| | Posted on Saturday, January 02, 2010 - 07:17 pm: | 
|
Hello All,
We have finally got this engine running but still no ID.
As you can see it is very small with 2 1/2" bore and 3 1/2" stroke. It has Whitworth threads. There is only one marking which is on the water pump which says "6 off" which looks accidental.
Any help in identifying this engine would be very much appreciated.
Thank you in advance,
Mark S.
 |
Blair Goss
Senior Member
Username: bgoss
Post Number: 136
Registered: 12-2007
| | Posted on Sunday, January 03, 2010 - 03:51 pm: |
|
Interesting little engine. Looks like you could really chew up your fingers trying to start it. |
Mark S
Senior Member
Username: marks
Post Number: 121
Registered: 03-2002
| | Posted on Monday, January 04, 2010 - 04:28 pm: |
|
Hi Blair,
It starts and runs well. However the design is not very well thought out in some areas i.e.the water pump is very very close to the flywheel so you need to watch your fingers.
Cheers,
Mark |
miro forest
Senior Member
Username: miro
Post Number: 426
Registered: 11-2001
| | Posted on Monday, February 01, 2010 - 08:57 am: |
|
Hi Mark -
How is the ignition timing done?
Looks like an earlier engine because the crankcase is split vertically - by about 1907 - 1910, most engines were split horizontally to allow working on the bearings without taking off the flywheel.
And in your case, customer feedback ( to use a modern term) about crushed fingers would have resulted in a better design of the water pump.
Don't know why, but the head reminds me of a Brit motorcycle engine - I'll have to burrow into my pile of cultch to see if I can find the why.
miro |
Ernie
Senior Member
Username: ernie
Post Number: 1153
Registered: 01-2002
| | Posted on Monday, February 01, 2010 - 10:03 am: |
|
Note the throttle handle on the carb. Has anyone seen another like this one. It appears to be a casting and looks original. |
Mark S
Senior Member
Username: marks
Post Number: 122
Registered: 03-2002
| | Posted on Monday, February 01, 2010 - 05:30 pm: |
|
Miro,
There is a bracket, not shown in the pictures, which will take a magneto. You can see the 2 mounting bolts below the end of the crankshaft in the second picture. I feel that this bracket is original.
We used an electronic ignition to run it, you can see the hall effect pickup on the triangular piece of wood behind the flywheel in the first picture.
I like the electronic ignition when first starting an engine as it reducues the variables, ensures a good spark (even when fouled or flooded) and makes changing timing easy (just move the magnet around). When it's all sorted out I use the "proper" ignition system.
Ernie the throttle handle on the carb is cast. The carb is an Alpha (Oz Schebler knock off). From memory these handles are on most of the Alpha's.
Thanks,
Mark |
Ernie
Senior Member
Username: ernie
Post Number: 1154
Registered: 01-2002
| | Posted on Monday, February 01, 2010 - 08:45 pm: |
|
Thanks Mark |
