mercury 60hp water problems !

[casper10]

I have a merc 60 hp with water pumping problems. Basically the water is not reaching the tittle tattle outlet. It is coming out of a small hole inside the leg housing near the exhaust. At first I thought I had blown a hole in the engine but i have my old Mercuy engine and this hole is present here also it is about the size of a pencil. If i jet water up the water pipe it will come out of the tittle tattle pipe where it should do but also still out of the hole in the leg housing,. If I jet water (but not much pressure) it will only come out of the leg housing hole. The impellor is 100% ok, i have been checking it regular while trying to sort this engine out. There is nothing in my manual about water coming out of this hole in the leg housing (does anyone know what it is called and why it is there?)
I am guessing that I have a blockage in the engine waterways ( i have taken off one of the plates to the engine that exposes 1 side of the engine waterways and this is all clear) If it is a blockage is there anyway of dissolving what may be there ?
Any help would be greatlly appreciated.

Many thanks

Trevor

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[BarryH]

If you look back at you original posting you'll see you had some replies to this prob

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[Tekkie]

Guess you mean Tell Tail outlet!!! Twould apper that you need a new impellor, what is engine temp like?

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[Solitaire]

This may sound rather silly, but do you use the boat in salt water? If so, it may be as simple as the tell tale becoming blocked with salt residue! This can be remiedied by simply poking a thin wire, such as an unbent paper clip, in the tel tale and wiggling it around.

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[casper10]

tell tale thats the name!
impellor is 100% i check it after each time i get the engine going.

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[casper10]

the water outlet is not blocked.
after taking the bottom unit off i can flush up the water pipe into the engine and water comes out from the hole inside the engine ( i presume this is a water cooler hole ?)
If i flush water from the tell tale end it comes out of the water pipe that goes to the water pump.



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[ggg]

This may be another obvious answer but are your impeller blades flat all the way down to the ends. This may look OK but in fact they usually should have solid tubular bits on the ends about twice as thick as the ends of the blades.

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[casper10]

the impellor is ok. no breakages at all. thick bits at the end still present

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[jfm]

impellors failure

The impellor is more likely to pass water on the flat circular faces, not at the blade tips. Also the centre bush can become detached from the rubber, so it spins freely and doesn't drive the impellor, but that's usually plain to see

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