Broken Impeller, can't find all the pieces.

[crc203]

Saturday, my new to me 2002 Super Sport (Excalibur 330) overheated due to the badly damaged impeller. I flushed out the cooling system the best I could, disconnected all hoses except at the transmission. I only found a few pieces that were in one of the manifolds. Should I be worried about not finding the rest of it? Can the pieces flush themselves out eventually?

Also, I have the new impeller and a thermostat on the way. With it overheating is there any other damage I should look for? The temp never rose above 200 deg.

Thanks

[2001SAN]

I had the same problem. Check the thermostat housing and tranny cooler. After my burn up I didn't find any pieces and I disconnected and flushed everything above and below the RWP. I showed the impeller to a marine mechanic who reckoned a good deal of the impeller would have been burnt up. After a while I stopped worrying about it. About 40 hrs on the boat since with no issues.

Good luck,

D.

[mnwakerider]

Had the same thing happen in my 03 SAN. Flushed as best as I could and threw a new impeller in and called it a day. Have about 17 hours since then and I am running about 10 degrees cooler than before... either way you should be fine.

[ers906]

The same thing happened on my 02 SAN, and was unable to find most of the impeller pieces. It kept overheating after for the next few times I ran it (just tested the temp using a hose hooked up to the Raw water pump drawing water out of a bucket). Turned out that one of the ends of the metal transmission cooler had folded over a bit (no idea how that happened), and the hose wasn't seated over the end 100%, allowing air to be drawn in. Went crazy trying to tighten and retighten the hose clamps. Just something else to check if you have problems.

[s_kelley2000]

Check the thermostat housing and tranny cooler.

+1 on this. More often than not they will end up getting stuck just before the tranny cooler.