Pee hose on outboards

Christopher A. Chung (CChung@UH.EDU)
Tue, 02 Feb 1999 19:07:01 -0600 (CST)

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West Wight Potter Website at URL
http://www.lesbois.com/wwpotter/
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My Johnson 9.9 on my Catalina 25 had the same problem with very little water
not coming out of the pee hose. Despite numerous warnings in the user and
shop manuals, I continued to run it. The only thing I did way change the
water impeller, but it still had the same problem. In my case, I was always
worried about it so on long trips, I carried the 3.5 Nissan off of my P15 as
a backup.

This season, I decided that I really had to do something about it. So I
flushed it with some toxic fluid from Boat U.S. It still didn't flow
properly so I took some monel wire to every orifice related to the cooling
system that I could reach. This includes two holes inside the cooling
jacket that were accessible when when the thermostat is removed and the pee
hose itself.

Surprise, a steady stream of water now comes out the pee hole. Apparently,
the salt and scale was clogging something up. The engine now gets properly
cooled and I have peace of mind.

Christopher A. Chung, Ph.D.
Assistant Professor
University of Houston
Dept. of Industrial Engineering
Houston, TX 77204-4812
tel. (713) 743-4195
fax. (713) 743-4190
cchung@uh.edu