Thread: Front cylinders running rich

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Good point Pope.
It has a 160 deg thermostat and runs 160 deg. no matter what so I assume the thermostate is good. The manifold gasket didn't have a provision for the heat port but since the manifold did it burnt through. The new Airgap has no heat port.

Another strange thing is clear oil tends to collect in the front valleys of the manifold. It appears like it's dripping from the Carburator but the carb is dry and clean everywhere including all vacume lines connected to it.

I first though that maybe I had a couple bad valve guides but after I make a long run and pull a plug, the front ones not only look rich but smell like gas...not oil.
Nomad Mike