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Old July 21st 03, 02:02 AM
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Default Steam in exhaust

On 20 Jul 2003 17:19:58 -0700, (Grampa Bob) wrote:
My question oncerns my Ford 352 inboard motor. It is a V8 with each
side having its own risers and exhaust pipes. For about three years I
have noticed steam mixed with the exhaust water on the port side.
This is slowly increasing in amount and now the temp gauge shows the
running temp to be higher, about 190 rather than the usual 180. Also,
the riser on the port side feels a bit warmer than that on the right.
It still runs fine, although the steam is a bit more marked since I
installed an electronic ignition. What are the possible causes of
this and how can I make a diagnosis?

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This is usually a result of insufficient cooling water flow through
the manifolds and/or risers. Check your strainers, pump, etc., but
it's also possible that the manifolds or risers are becoming blocked
by corrosion and need to be flushed out or replaced.