Postby dsolo » March 21st, 2017, 10:52 pm
The first prop scanned (RH) looked promising. You can see this on the graphs labeled on the lower right order with RH. Overall blade pitch average was within the allowable tolerance. The blade had been reworked once by Grand Haven Propeller. The technician could ID the rework shop based on a stamp located on the face of the base.
The LH prop is another story. Looking at the graphs tells the story. It had 2 previous repairs. In those repairs the blades must have had blade edge damage for the blades were filed down creating over a 1/4" difference between blades. Holland Propeller stated beyond repair in current condition. What is interesting is during the survey in October a small vibration was detected while observing the port shaft down below. This was the LH prop. This was to be checked after launch in the spring.
There is a lot of data and much more than can be observed physical. Although my outcome is less than desirable, I now have data to help in making a decision going forward. Worth the drive and time.
I will not go into details regarding the input and sell job given during the visit to Holland Propeller. I will keep it to I am glad I did my research on prop supplier options and prices.
I have contacted Carver for original manufacturer and their part numbers. They are Michigan Wheel, 22/21, bronze props. I have decided to purchase new props and will see if my current units can be repaired as backups? There are other shops to try.
Now onto the starts. My dial inicator and stand will arrive tomorrow. I have a tech lined up to help with the setup and measurements.
Enjoy the pictures.
Thanks to Viber for his advice on looking into things with such detail and analysis.
dsolo
Vessel "LaBelle"
Portage Point Inn & Marina, Onekema, Mi
1997 Carver 405 MY
454 EFI Crusaders