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6354 normally aspirated exhaust manifold spec

john_harwood

New member
"Hi,

My boat is laid up in


"Hi,

My boat is laid up in France and I live in England. At the end of the season I found that the swan neck chimney from exhaust manifold to exhaust was cracked so I brought it home to use as a template for getting a new one made. However I have noticed that the water input pipe to the chimney is much larger than it should be, distorting the flexible tube attached. It should obviously be the same diameter as the output pipe on the end plate of the exhaust manifold.

I would like to know the diameter of this short (lipped) pipe on the end plate. In my parts book (April 1968) it is 64 on the diagram (No 37482161) but no measurements are given.

Information would be much appreciated.

John Harwood"
 
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