
Have noticed a problem,
Have just finished the Bobcat Project and have been setting it up to start the engine. In 4448 page 153 is says to set to BDC and then rotate engine anti-clockwise (backwards) to 40 degrees. This engine by the description of the cam set up, rotates anti-clockwise viewed from front of engine (fly wheel end), so you would have to rotate engine clockwise for backwards to get to 40 degrees. I believe this to be contradictory.
The next problem is, if this engine rotates anti-clockwise, then the crankshaft thread should be a LH thread, so the prop or fly wheel does not inadvertently fly off. From this I would suggest that we change it to a clockwise rotation engine, which means if we set the cam shaft lobes the opposite as described i.e. anti-clockwise viewed from the chuck of the dividing head, then everything will fall into place, otherwise we make a LH thread crankshaft (unless I am missing something here).
As you can see from my pictures I have got another carburettor fitted this is a J.E Howel design (I have made the one as described as well), I will see which one runs best).