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I am now working on a "new" engine, a scratch design single vertical.....The engine is an aluminum , 1" X 1" bore and stroke and that it is going to be a timing belt driven over head camshaft, with cooling fan, and adjustable compression ratio ( after the engine is built)...

I have a few things to finish working out , still things are going well at this time.......The engine should be simple to build, and is sized to be a working engine if you want it to be......It is a size #8 engine for the people with size #10 fingers.........

The engine is a 1.000" bore X 1.000 " stroke , with a .375 "shaft, block OD is 3.000", Block length is 3.000" ,cooling fins OD is 2.750", and height to the top of the biggest pulley is 8.750".....Flywheel OD is 3.000 X 1.500 long, which includes the starting rope pulley.....I have one picture with a 6" scale along the side of the engine and I will send it to you in a following email.........The squish area of the engine can be adjusted from .437" down to about .045", after the engine is finished.

4/6/2005 A few follow up pictures of the vert. single 1" x 1" engine......It is just about ready for start up

4/14/2005 I started up the single about three day ago......Had a excellent start up, only needed to set the carb and adjust timing....Had a few oil leaks, which are now cleaned up.....The engine runs from a nice idle up to a good high speed....It is fast to take the throttle........I will send a few final pictures later.......