I am in the process of installing a vintage Boesch distributor on my speedster. Does it need to have a bell crank installed in the timing rod? If not, what do I need to do to make it work properly? I have considered turning over the arm on the end of the spark rod, so that it would move in the opposite direction. Thanks, Ed
this is what I made for it.
As there are several types of Bosch distributors we would need to know which one you are using. Generally the clip on that has the hole for the timing rod just needs a rod running from the steering column to the distributor.
The important question to ask is, "does the rotor turn clockwise or counter-clockwise?"
When you pull the spark lever down on a Model T, you cause the spark to happen earlier, as the timing gear is turning counter clockwise, looking from the front.
That is also true for a distributor, if the rotor turns counter-clockwise looking down from the top.
If the distributor turns clockwise, looking down from the top, you would have to reverse the spark lever action with the toggle device shown above.
Thanks all for your help. My distributor turns counter clockwise so I guess I don't need a bell crank to make it work properly. This is what I needed to know, so thanks again. Ed