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  #1  
Old 05-18-2017, 01:40 PM
brigeton brigeton is offline
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Join Date: Dec 2008
Location: Grant, Mi
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Default Speedometer

I have a Crestliner that had a 2004 e-tec on it. The speedometer was leaking water into the dash, I assume from freezing, and I unhooked the speedometer tube from the engine.
Last year I repowered with a Merc 115 4 stroke and they installed all new gauges. The speedometer was fine last year but now it leaks water like the old one. I cut the speedometer tube at the back so it is shooting water into the splashwell. Does anyone know where the tube connects on this motor or should I just pinch it off? I don't care if the speedometer works or not.
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  #2  
Old 05-18-2017, 02:31 PM
JMW JMW is offline
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They usually leak from the tube being pulled off the fitting on the back of the speedometer.
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Old 05-18-2017, 07:12 PM
REW REW is offline
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take a look down on the front of the engine. Normally, the pitot tube is located there.

Basically, you have a pitot tube that is connected to your speedometer. The tube that goes to the speedometer connects to a sealed bellows on the inside of the speedometer.

So, as long as the bellows are not perforated, there will be no water in the pitot tube, but only air pressure.

the only way that you can get water into the line is to have a hole in the hose near the speedometer, the line has come off of the speedometer, or the bellows on the inside of the speedometer has perforated and has allowed air and then water to come into the speedometer.
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Old 05-18-2017, 07:14 PM
REW REW is offline
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Since you cut the tube at the splash well, just follow the tube back to the engine and you will see where it connects to the engine. All that you have to do, is to put a solid stick or rod on the inside of the tube that comes from the engine and you have plugged the leak.
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Old 05-18-2017, 07:20 PM
REW REW is offline
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Since you cut the tube at the splash well, just follow the tube back to the engine and you will see where it connects to the engine. All that you have to do, is to put a solid stick or rod on the inside of the tube that comes from the engine and you have plugged the leak.

++++++++++++
Location of the speedometer output line to run to the speedometer that is on the outboard motor lower unit:

https://www.google.com/search?q=merc...SJrjsKLugunLM:
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