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  #1   IP: 97.76.77.246
Old 05-12-2019, 05:51 PM
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No water coming out of exaust

We got this Cal 29 donated to our charity. We Have cleaned the intake, replaced the impeller and get water to the raw water pump, but with the engine running, we are getting NO water out the exhaust. We have thought about removing the thermostat and flushing the system with vinegar.... Any help would be greatly appreciated. We have to move this boat in the next 2 days.

thanks, John
wavemissions1@gmail.com
or 727-953-5903 is my cell
Located in Tarpon Springs FL.
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  #2   IP: 24.152.132.140
Old 05-12-2019, 07:03 PM
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Remove the outlet hose from the pump and start briefly. Let's see if the pump is pumping.
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1977 Catalina 30
San Pedro, California
prior boats 1987 Westsail 32, 1970 Catalina 22
Had my hands in a few others
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  #3   IP: 97.76.77.246
Old 05-12-2019, 07:06 PM
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re output

yes we get water on the outgoing side of the pump
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  #4   IP: 24.152.132.140
Old 05-12-2019, 07:08 PM
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What condition was the old impeller? Any vanes missing?
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1977 Catalina 30
San Pedro, California
prior boats 1987 Westsail 32, 1970 Catalina 22
Had my hands in a few others
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  #5   IP: 97.76.77.246
Old 05-12-2019, 07:21 PM
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impeller

no it was in good shape. the engine seems to have been fairly well maintained but sat for about 1-2 years in the water.
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  #6   IP: 24.152.132.140
Old 05-12-2019, 08:14 PM
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Given what you report, I would disconnect the hose from the exhaust mixer down stream of the engine and see if you have water there when running and if not, work your way back to the manifold and finally the block. The elbow at the aft end of the manifold is notorious for snagging debris creating a blockage.

Without flow an acid soak is off the table. No flow = no acid getting into where it needs to be.
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1977 Catalina 30
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prior boats 1987 Westsail 32, 1970 Catalina 22
Had my hands in a few others

Last edited by ndutton; 05-12-2019 at 08:25 PM.
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