Re: KPack's 1954 Panama

Posted by HH56 On 2020/8/22 20:02:47

There is always a bit of leakage past the rings and out of the cylinders but could be the rings are bit worn and you are getting more blowby than usual. Unless it gets really heavy and you also start seeing blue smoke from the exhaust there is no immediate cause for concern.

When the engine is running air is forced thru the cap blowing any vapors down the fill tube and toward the breather tube. With the car in motion, suction created by the moving air over the end of the breather tube also tends to pull the vapor out that end where it dissipates under the car. When the car or engine stops and there is no forced pressure in thru the cap or any suction effect the vapor normally rises where it will tend to come out the fill tube and cap. Even in more modern cars it is present but with positive crankcase ventilation you would rarely see the vapor.