MANIFOLD "SWEATING"

[KsPlainsman]

On my 1951 M the "neck" of the manifold just above the carburetor is sweating water (condensation) what is my problem? Thanx

 

[Jim.ME]

It generally happens in colder weather but when the temperature and humidity are right it is caused by the air cooling as it goes through the carb venturi. When the engine warms up and heat gets around the manifold it will clear up.

And welcome to the forums.

 

[grandpa Love]

On my 1951 M the "neck" of the manifold just above the carburetor is sweating water (condensation) what is my problem? Thanx

Means your carburetor is adjusted perfectly .

 

[Absent Minded Farmer]

To add....

You can run it until it is somewhat warm, shut it down until the frost thaws, start it & go. If it's warm out, it can help keep it from happening. But not always.

Otherwise you'll have to build a heat riser out of some tin to keep heat there.

Mike

 

[Ray,IN]

Cold intake air is more dense = more oxygen in the same CF of air. That's how it works for turbocharged engines anyway, that's why they have an after-cooler. For a gas non-turbo engine it might make it run leaner until the ice melts, but that; why it has a choke cable. At least that's how my old Super M did.