Gallery

Dale Detrich Attica, OH djdtrh@cros.net

The Tiny Two-Cycle , 1.00 bore X 1.00 stroke, 13,000 RPM 6/3/2008

This is a 1946 plans from one of the monthly magazines..........It looks as if it will be fun to build

7/6/2009

Some tools used to locate tapped holes , needed for the bearing retainers......Work is going slow

Bearing shown in place....Plans want you to have a push fit on the bearings

Just a bunch of pix. of the block.....It is almost finished, but you have to locate some holes from the next parts........

This picture shows one of three mounting bolt pattern on the engine......

8/9/2009

Picture of working on the tiny two cycle engine flywheel............

Picture showing some more work on the engine block.......The block now has the bearings and bearing retainers........

The long shaft is a temp. shaft to check the bearing to shaft fit..........

Back end of the engine.....

A look inside of the block , showing the front bearing retainer.......

A look at my work area....I will clean it up some day..........

The brass tube (air intake) will be pushed down into the block, and the threaded holes will be in line with the holes in the tube....This will be the needle valve for the engine.....While not making any changes to the original engine design, I an going to fit a standard carb. to the engine to allow you to control the speed of the engine.....The original engine speed control is by changing the timing of the engine........

Rough cut off flywheel......

Flywheel rope slot.......

Flywheel dust........

Flywheel and block......I am going to make one stock flywheel, and one of my fan type flywheel to provide some cooling air while running the engine.......

The small hub on the back of the flywheel , and the matching recess in the front of the block provides a running seal for the front of the engine......I made the small hub out of 12l14 steel to give me a "good" material for the set screws that will hold the flywheel to the engine shaft.....

I am now working on the crank , and should have it finished soon.........I will send some more pictures later as the engine progresses.....Thanks...Dale

9/30/2009

I still need to make the rings, and do some final work on the engine yet.....I believe that I am going start up the engine on glow fuel and plug.....After some run time, I will change it over to ignition

Milling the slot for the starter rope......

Forming the fuel bypass using a 5/8" tool blank for the correct width........

Bypass tube "temp" set into place on the engine......

Starting the cylinder work......The original plans for the engine had the cylinder and head as one peice....I am planning to lap the cylinder and did not want to lap up to a dead end.....I made the head a screw off head

I made a screw off head, and this is a picture of the (yet to be threaded 32 TPI) head, that will screw onto the cylinder.......

Parting off the screw on head........

Opened up cylinder , ready to start the boring work ......

Ready to start work on the cylinder........

Threading the top of the cylinder to accept the screw on head..........

The threaded pair......

The threaded cylinder and head........

Head with threaded adaptor from 3/8-24 to 1/4/- 32 tpi................

Starting the outside work on the cylinder..........

Head started onto the cylinder........

Assembled cylinder and head.......

Starting work on the crankshaft..........

Turning the throw........

Turning the crankshaft...........

Crankshaft with the bearings........

Finish work on the crank.........

Still more work to go..............

Crank and block...............

Porting work on the cylinder..........

Working on the rotary intake valve...........

Cylinder temp. set on engine block......

Starting work on the conn. rod...........

Connecting rod........

Laping the cylinder.........

Cylinder at 1.000"..............

Starting the piston work......

Checking the cylinder size............

Piston with a working plug still attached..........

Inside piston work......

Making a working plug mount for the piston........

Facing off the piston to correct length.......

Piston and rod combination.......

Finish work on the piston top........

Final work on the piston top.....I will send a few more pictures as I do the final assembly work......I need to make the piston ring (1) , and do a "bunch" of small finish work......I am planning to start up on glow fuel and plug, then convert it over to spark........

Parting the piston from the 1st. plug.......

10/5/2009

I used 12L14 for the engine cylinder and crank.....C40 cast for the rings, and 2024 aluminum for the block........I used their way to make the rings, and they look real good.......I am getting down to the fine parts, and things that need to be done to make it run......I will start it up on glow, and then change over to ignition......Still many things to do........

10/20/2009
I wanted to have the engine running at the Zanesville, Ohio show.........Had a few things come up that had to done first....Oh well, you all know about your best laid plans and all of that good "stuff"......

I have added the fan to allow bench running of the engine......It will not be running at the show, but will be running at the NAMES show.........

If you want the plans for the "tiny" two-cycle, just get in touch with me, and I will pass the plans along............Thanks Dale

Click here to go to the finished Engine