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| Hear is the engine block ,front&back crankcase covers,with ballbearings installed , and the new oil pan |
| The engine is 13/16 (.8125) bore X 3/4(.750) strock water cooled 4 cyc. O.H.C. singel cyl. |
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| Next is the crankshaft and the piston & rod The crank is made from a grade 8 bolt, the rod is 6160 alu. the piston is 1025 steel the ring will be made from cast iron the ring grove is .031 wide , and .050 deep the ring will be .030 thick , and .035 wide |
| Rod bolts are 5-40 grade 8 S.H.C.S. |
| the crank throw is .250 dia. the main bearring jurnals are .392 (10 mm) i used the 10 mm bearrings because i had several sets that were salvaged from old 1/4 in air diegrinders. the small ends are .3125(5/16) due to a screwup i made after cutting the throw |
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| Hear are two views of the NEW flywheel, and the hub that goes on the crankshaft for the flywheel to mount on. The first one was just too small&light , This one is probly overkill but at least it wont be too small this time !!!!!!!!!!!!! |
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| Here are two views of the head , In the top view you can see the camshaft , and one rocker arm installed , In the bottom view you can see the combustion chamber (sorry that the detall did not come through verry well) and the one valve that is installed . On the side are the other valve , rocker , spring ,keeper ,& lock |
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| I put this one in just for size ! I played with the pic. to get it to app. actual size ! The valve stim is 1/8 (.125) and the valve head is 1/4 (.250) |
| the block , and covers are made from 2X2 in. hot rolled steel |
| The head is allso made from 2X2 in. hot rolled steel |