Just a little page describing what the bell crank is, where it's mounted, how it moves and why I needed to make a new bell crank to meet my purposes.  I've recently updated this page to include a few pictures, so you woulnd't have to rely on the crude nature of the computer drawings.  The scale is only loosly approximate in the drawings, and the detail is lacking.

First off, here's the "overview" image, showing where the bell crank is mounted on the back of the fan shroud, and the direction that it transmits force.  All blue dots are pivot points, red dots are 6mm ball and socket connections.  This would be the view looking at the engine from the drivers side of the car:

Ok, here are some pictures showing the bell crank we ended up making:

Then this is a more detailed image of the current model bell crank, and a representation of the older style.

The bell crank I'm using on my car does looks like the "new style" you'll see in the image above.  The "old style" isn't even really drawn from memory, all I wanted to show was that there is a way you can have the pivot balls oriented such that when you pull on the throttle rod, you don't get an immediate upward motion.  With the "new style" bell crank you'll notice that as soon as you pull on the throttle rod the second rod is immediately forced in the upward direction.  In the case of the "old style", the ball actually moves sideways a significant portion, wasting the overall travel available to move the carburetor from idle to full throttle.


Drive me back to the engine write up page!