Re: Mike P 1955 400 Slow Resto Thread!

Posted by HH56 On 2022/7/21 23:45:01

16 is not horrible but a vacuum leak would be one of the first things to rule out. Lots of hoses involved in the wiper/washer system and to the power brake and reservoir, any of which could have a small crack or dry enough rubber to have a loose connection at a tube.

Power brake has some rubber poppet valves inside, one of which could have hardened and be leaking slightly. Wiper motor or washer could also have a small leak. If the crankcase mounted aux vacuum pump is still present, there is some plumbing involved with that which could be doing something strange.