Originally Posted by cal20dennis
KISS...another chance to lose cooling water
to your engine? More hose connections, gaskets, hose clamps to fail?. Sounds like a bad idea to me, especially since the impellor pieces lodge at the seawater entrance to the heat exchanger. Just remove the seawater hose from the heat exchanger tube and retrieve the pieces of rubber....or remove both hoses from the seawater side of the heat exchanger and backflush with a garden hose. (You will be NOT running the engine anyway as the impellor disintegrated!)
I agree and espouse the KISS principle as much as I can. If it isn't there you don't have to fix it.
But in this case and maybe in this particular genset/engine situation it may be a very good solution. Some heat exchangers are located/ mounted so that they are a bitch to get to and service
. On one of my engines you have to disconnect all the hoses and remove the whole H.E. to get to the part where the little raw water
impeller vanes would lodge. Also in my particular case there are copper pipes in between the H.E and the R.W. pump and the little broken off vanes get lodged in the bends of the pipe.
On other engines they mounted the H.E. so that it could be serviced - but not all engine makers have that much foresight.
In any case, if the output of the R.W. pump allows the placement of the strainer - then be sure to use a strainer that has a clear transparent bowl so you can see what is inside it.
Also, if the mesh of the strainer is too small you can do what I had to do with one of my Forespar inlet strainers - - make a new strainer basket by cutting out sections of the old strainer basket and then lining the inside with an appropriately sized mesh "screen" made from household plastic window/door screen material. Or be creative and find some kind of thin material with the appropriate sized mesh and cut and shape it to slide inside the original strainer. The original strainer becomes the "frame" to hold the new, better sized mesh liner.