Strange story. I decided to remove my 50 yo copper standpipe exhaust to check it out. It turns out that it looks in good shape. I alos removed the manifold as an exhaust bolt broke off. Lo and behold the is a one inch by 1/2 inch hole on the inside of the manifold right below the exhaust gasket by the rear cylinder.
The mystery- this had to develop over several years. I have never noticed an exhaust leak or a cooling water leak. I can't explain it
As an aside when I took off the manifold there are six ports. Two on each end for exhaust and the two middle ones are for intake. Made me wonder hoe two intake ports in the middle of the block feeds four cylinders
The mystery- this had to develop over several years. I have never noticed an exhaust leak or a cooling water leak. I can't explain it
As an aside when I took off the manifold there are six ports. Two on each end for exhaust and the two middle ones are for intake. Made me wonder hoe two intake ports in the middle of the block feeds four cylinders
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