You should not see impeller bits in the raw water intake because the impeller is downstream of the sea-strainer. Regarding the heat exchanger (if you are FWC), the tubes inside the exchanger become plugged like an artery does in a body. The pencil zincs that are in the heat exch may be part of the plugging-up process as they erode away. I'm not claiming to be an expert by any means. I have experienced what you are experiencing, with our first boat. I did the aforementioned maintenance items to have piece of mind that I had done them and started my own maintenance log from then on. If you have additional heating problems, you have at least addressed the simple items.
If your impeller bits have broken off, and are not in the water pump, find them. On Oct 2, 3:36 pm, Seattle Chris <[email protected]> wrote: > Thanks for the suggestions. Out of curiosity - if I pull the heat > exchangers, what would indicate they're in need of service? In other > words, what should I be looking for? I suspect the debris floating > around the water filters may be impeller bits. > I love this site, by the way. I've gotten very good advice and I'm > happy to be a part of the Uniflite owners group. > > On Oct 2, 8:56 am, ferari <[email protected]> wrote: > > > > > I would change out both impellers (port and stbd; do one, do both) and > > perhaps move on to pulling the heat exchangers and taking them to a > > local radiator shop to have them boiled out. This will give you a > > base line at least for routine maintenance items. Those items are > > easy to do. If you find you are missing a few vanes from the impeller, > > start looking downstream in your cooling system to retrieve the broken > > pieces. I would bet you will find your culprit and get to know your > > engines. > > > Also, if you don't already have one, you might want to invest in a > > laser thermometer. Get the engines up to temp and shoot the cooling > > system. > > > Good luck! > > > On Oct 2, 7:32 am, Seattle Chris <[email protected]> wrote: > > > > I recently purchased a 32 SS with twin Crusdaer 270's. For some reason > > > the port side engine temp jumps to 210+ as soon as it has a load, > > > while the starboard engine maintains about 150. It hasn't overheated, > > > but I don't want to run it until it does. > > > I've checked the fresh water filters for water flow and visually they > > > both look fine. > > > From my initial research, I've read about checking impellers for wear > > > or blockage. What other advice do you all have for DX-ing the culprit > > > before I begin the project?- Hide quoted text - > > > - Show quoted text -- Hide quoted text - > > - Show quoted text - -- You received this message because you are subscribed to the Google Groups "UnifliteWorld" group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/unifliteworld?hl=en.
