Re: vacume tank or vapor lock 1929 626

Posted by DavidM On 2012/9/3 6:22:35

Interesting, the vacuum tank is on the opposite side to the exhaust manifold so it runs cooler. The article I attached to my last post refers to venting of the float chamber. When I spoke to the twin six owner and he told me that he had fitted a vent to his float chamber I commented that the float chamber on his car is not sealed, there is clearance around the float shaft where it penetrates the cover and if the cap, if fitted, has small holes however his response was that on his Packard this was not enough to vent the float chamber and it needed a much larger pipe. The "bump" on your Dodge is very small but obviously works.
I have friends with Packards like ours who claim they never vapor lock, like your Dodge. I can't explain that, I have three that all vapor lock.
I thinks it time I got off my soapbox and let others comment!!