[C320-list] Shaft Coupling to Transmission
Stanley Rogacevicz
SROGACEV at holycross.edu
Mon Apr 24 12:50:28 PDT 2006
Randy,
I have hammered on my old 3 blade a bit to get it off with no ill affects. If I remember back about 5 years correctly those set screws go into holes in the shaft approx 1/4" so if they hammered hard enough to move the shaft with those set screws in properly then something had to give - a lot.
Stan
(formerly) Christy Leigh
c320 #656
Wickford/Narragansett Bay RI
>>> CGreenwell at sparusa.com 4/24/2006 4:33 PM >>>
Ok, the long awaited day arrived. I splashed my boat for the season. It was time to go out and test my new Flex-O-Fold, 3 bladed, folding prop installation.
The first thing I noticed was that the boat backed up straight! There was very little prop walk. I was overwhelmed with sheer joy.
The next thing I noticed was vibration when going forward. It occurs in the mid range areas of engine RPM (1400 * 2200). At higher RPMs it is less noticeable.
I pushed the engine to 3000 RPM achieving 7.9 knots SOG on GPS and 7.6 on the Knot meter. The water was smooth as a baby's bottom. Anything greater than 3000 RPMs did little to increase boat speed.
After returning to the dock I inspected the shaft and packing gland to ensure everything was OK. I noticed that the key slot on the shaft did not go completely into the coupling attached to the transmission. It has about 3/8 of an inch showing. Being a very observant individual, I also noticed that the shaft was tarnished but the key slot was bright and looked new. This meant that the shaft had slipped out of the coupling a little. Now, how could that happen?
Well, after I had the prop installed, the installer called me and told me that my cutlass bearing needed to be replaced. I contacted the yard maintenance folks and requested they change the bearing. I learned from one of the mechanics that they did not have the right prop puller so they used a hammer to bang the prop off.
So, what do I do now? Can I loosen the set screws on the coupling and simply push the shaft back in? or Do I need to get it out of the water to accomplish this. I would like to know before I go down to the yard and raise a little hell. Any ideas?
Thanks
Randy
Le Bijou, Hull #719
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