water problem

[roxylass]

as above, i have a 4 hp engine no esc 181 hh1, problem is after pushing my long-liner for a while engine stops,block is to hot to touch.
she is certainly pulling water through, and then i get steam, have done a back flush water pouring out the vents, could it be maybe one or two vanes have broken on the impeller, have ordered a new impeller from john, not sure how to strip the lower half to have a look at the impeller, all advice and help most wellcome.
kind regards.

[charlesp]

I reckon a read of the 'New to this Board' post above will be of interest.

John will supply manuals and tools if required.

[roxylass]

done a back-flush today still coming out the vents no problem, put it in the test tank 6ft by 4ft pit that i dug in the garden with steel reinforced concrete walls water streaming out when idling, put her into gear water still coming out but not as much when idling, i would have thought when in gear with half throttle a better stream of water. going out for mackerel tomorrow so see how she performs.
kind regards.

[billyboy]

if the water reduces flow when the prop is turning in a tank,,,, that is quite normal. if the same thing happens on the boat though (whch i doubt) you have a problem! try removing the prop when testing in the tank and see what happens

[Collector Inspector]

And you have a "Water Problem"...............

http://www.watercorporation.com.au/d/dams_storage.cfm

Down here we are not allowed to fill a test tank!

Tank has 200 litres of oily sludge in it!



B