Hi Henry,
Mine leaks and I've fixed it twice in 16000 mi. . I milled the
manifold surface but did not remove the heads to do them. I tried
doubling the gaskets . This lasted a little longer than one. Haven't
used silicone or pyro-putty , but am going to try something new soon. I
think Emery may be right about the reformulated gas leaning out our
carbs and producing a red hot manifold which will be almost impossible
to seal. No money for fuel injection yet so just keep "plugging the
dike" .
Happy Trails
Hugh
Mine leaks and I've fixed it twice in 16000 mi. . I milled the
manifold surface but did not remove the heads to do them. I tried
doubling the gaskets . This lasted a little longer than one. Haven't
used silicone or pyro-putty , but am going to try something new soon. I
think Emery may be right about the reformulated gas leaning out our
carbs and producing a red hot manifold which will be almost impossible
to seal. No money for fuel injection yet so just keep "plugging the
dike" .
Happy Trails
Hugh