On Sat, Dec 31, 2005 at 05:45:30PM -0800, Jim Cathey wrote: > There might be a slight coolant leak at the middle of the intake > manifold. I suppose it could be the head gasket, but I'm wondering if > the middle section of the manifold, the carburetor perch, is heated by > a coolant passage? It has holes into the head, and somehow I'd > thought it was exhaust gas, but it could well be water instead. I > didn't do a real stellar job on the intake manifold gasketing, and it > would be easy to pop that off and try again. > > Anybody know about such things? This is an old low-tech heavy-duty > engine, are head-water-heated carburetor perches SOP?
Water heated intakes are rather common, especially when dealing with propane. I wouldn't be too surprised to hear that yours got the water from the head through the manifold rather than through a hose. What size were the holes, compared to the intake ports? K