Zklink5150
New Member
- Apr 3, 2009
- 77
- Boat Info
- 1983 sundancer 260
- Engines
- 350 alpha
I just came to the end of a long struggle and wanted to share my findings and help the next guy along. It all started with a overheat issue at high rpms. After sitting for 14 yrs, I rescued this boat thinking I had a fairly solid boat. It was winterized properly and all that jazz, I thought, just change the fluids, impellar, tune up and go..here's how it panned out.
The impellar was my first move as I said, I put the boat in and found that I had the overheat. All seemed well with the engine, So I split the drive again to be sure. Warped impellar housing, upper housing seemed ok, changed all the seals, still overheating, now it's mixing water in the oil!!! Had bob mase at jtm marine in canton take the reigns. Turned up with a cracked block, two cracked heads, water pump, risers, thermostat, thermostat housing, oil pan. New 350 basically!! After that, still overheating at high rpms. I was livid. This site saved the day. I read a post that explained how to measure water flow from the impellar. After all this pain and money, the 1/2in water tube that supplies the engine was packed full of broken impellar pieces. What a lesson learned though. I mean, where did I think those pieces went when I changed the old impellar? WTF!!!
The next step is getting her on plane. Ive heard that my prop may be too big? (17) Any helpfull threads on this subject anyone could reccomend would be great.
Thanks for listening. It's been a long road...
The impellar was my first move as I said, I put the boat in and found that I had the overheat. All seemed well with the engine, So I split the drive again to be sure. Warped impellar housing, upper housing seemed ok, changed all the seals, still overheating, now it's mixing water in the oil!!! Had bob mase at jtm marine in canton take the reigns. Turned up with a cracked block, two cracked heads, water pump, risers, thermostat, thermostat housing, oil pan. New 350 basically!! After that, still overheating at high rpms. I was livid. This site saved the day. I read a post that explained how to measure water flow from the impellar. After all this pain and money, the 1/2in water tube that supplies the engine was packed full of broken impellar pieces. What a lesson learned though. I mean, where did I think those pieces went when I changed the old impellar? WTF!!!
The next step is getting her on plane. Ive heard that my prop may be too big? (17) Any helpfull threads on this subject anyone could reccomend would be great.
Thanks for listening. It's been a long road...