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    68 Mercury 110 9.8 - Should water exit exhaust when hose attached to water pump pipe?

    I just reassembled and ran the motor in deep can of water. It ran well and plenty of water out the tell tail. Slightly warmer than it went in. Engine body stayed nice and cool so I think everything is working. Thanks for your help.
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    68 Mercury 110 9.8 - Should water exit exhaust when hose attached to water pump pipe?

    That makes sense, I was trying to understand the path the water takes back to the lake so to speak :-) I was figuring if I could blow water up into the engine, I can confirm the tell tail is working (it is) and then wherever the water goes to leave the engine and back to the lake. My limited...
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    68 Mercury 110 9.8 - Should water exit exhaust when hose attached to water pump pipe?

    OK. Makes sense, thanks for your help as I'm learning about marine engines and this is my first. Still curious whether water blown up from the LU should exit via the exhaust as well as the tell tail? Seemed to me like a decent test for any blockages.
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    68 Mercury 110 9.8 - Should water exit exhaust when hose attached to water pump pipe?

    Thanks for your help. I was also thinking that there may be a thermostat that would be closed at the engine (when cold) and therefore no water coming through the exhaust in my test. The motor does start and run fine for short tests which I have done a couple of times. I did notice a white...
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    68 Mercury 110 9.8 - Should water exit exhaust when hose attached to water pump pipe?

    Hello, I’m new here and looking for sole help. I just replaced the water pump impeller and associated parts and initial test with motor running in barrel failed to show tell tale water. Possible I did not submerge the LU far enough this time… I just removed the LU and attached hose to copper...
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