SeaPuppy
Newbie
- Joined
- Apr 25, 2014
- Messages
- 2
- Location
- United States
- Vessel Name
- Life Is Grand
- Vessel Make
- 1979 Grand Banks Europa
This old sailboat driver recently purchased a beautifully restored 1979 Grand Banks Europa with 120 HP Ford Lehman engines having a reported 3700 hours per engine. Engines start and run smooth with no significant smoke and clean engine oil analysis. Max RPR at full throttle (under load) is 2200 rpm. Engines overheat above 2000 rpm. Speed of 7 knots at 1400 rpm. Bottom is clean and smooth. Props are clean with no dings. Props are marked 24X18. Boat is equipped with stabilizers which were in operation at time of test run. Mechanic says boat is over propped (sounds reasonable to me.) We are going through the cooling system with one new water pump, hot tank heat exchangers, replace engine and transmission oil coolers, etc. (to eliminate cooling system as part of the overheating problem.)
Question: Based on the above data, does it sound like we are over propped and, if so, what would you repitch the props to?
Kirby (Seapuppy)
Question: Based on the above data, does it sound like we are over propped and, if so, what would you repitch the props to?
Kirby (Seapuppy)