Re: [Amel Yacht Owners] Bad Vibration in the prop drive shaft


William Maffei <william_maffei@...>
 

Thanks for the response I really appreciate it and keep it coming from the others. I think that there might be some communication difficulties right now considering I am in Boston and the captain and crew are only in communication 1 or 2 times daily via irridium data connection. Riza from Turkey has been in touch with us both and is helping the situation. I know anything is possible on a boat (speaking from past experience) but I am hoping that this is a simple fix like an autoprop bearing and nothing major mechanical. The boat was just prepped for this trip and surveyed in the past month. I look at this leg (Marmaris ~ Malta) as a shake down for the remaining 4,300 NM.

The bottom, prop were both cleaned before the trip, anodes replaced and all systems were tested.

BTW Bill: I have not forgot about your suggestions for a new mattress and Gardener Mattress is coming to visit when she arrives in Boston. I will let you know.

Cheers,


At Apr 24, 2015, 8:50:36 AM, Alexandre Uster von Baar uster@... [amelyachtowners]<'amelyachtowners@...'> wrote:

To Echo Bill's comment,

I had some "light" vibrations, could feel in some RPM range.
When I did the haul out, antifouling, C drive service, had the propeller entirely rebuilt and now the vibrations are gone, plus I gain 200 rpm !!!
Some say the propeller needs to be rebuilt every 2000 (engine) hours or 10 years.

Sincerely, Alexandre
SM2K #289 NIKIMAT
In repair at Dania Beach, Florida.

--------------------------------------------
On Fri, 4/24/15, 'Bill & Judy Rouse' yahoogroups@... [amelyachtowners] wrote:

Subject: Re: [Amel Yacht Owners] Bad Vibration in the prop drive shaft
To: amelyachtowners@...
Date: Friday, April 24, 2015, 7:41 AM












Bill,
I should also have said that it could be the
AutoProp if the hydraulic shaft brake is not working or not
installed. That would allow the prop to spin with the motor
off and result in vibration.
But, that prop could simply be fouled. Did your
captain rule out a fouled prop, assuming a parallel problem
with the shaft brake?
Bill Rouse

BeBe Amel 53 #387

Sent from my tablet

+39 333 121 8115 Italy Mobile

+1832-380-4970 USA Voice Mail
On Apr 24, 2015 2:34 PM,
"Bill & Judy Rouse"
wrote:
Bill,
You state, " With engine off in neutral it
shakes the Amel drive." I assume you also mean under
sail and the propeller spinning? However, every Amel I have
seen has a hydraulic shaft brake that will stop the shaft
with the engine off...therefore no spinning.
Is the delivery captain familiar with Amels? Is
he familiar with diesel engines? I think that he might be a
lacking in knowledge about Amels, or lacking in his report
to you.
If I had to guess, you have a cylinder or two
not firing correctly, o'er possibly some sort of issue
with the transmission. And possibly a motor mount issue.
I am at Marina di Ragusa which is about 50
miles north of Malta. I have an SSB radio. If your boat has
SSB, and if your captain can operate it, I will be happy to
talk to him. Please let me know a time and frequency.
Contact me at the Italy cell phone below. FYI it is now1430
my time.
Also, I can give you contact info to haul out
in Malta with a yard at least casually knowledgeable with
Amels.
Bill Rouse

BeBe Amel 53 #387

Sent from my tablet

+39 333 121 8115 Italy
Mobile

+1832-380-4970 USA Voice
Mail
On Apr 24, 2015 2:15
PM, "william_maffei@...
[amelyachtowners]"
wrote:

























Hi there

New owner
of a 1997 Amel Super Maramu in transite for delivery from
Marmaris, Turkey to Boston, MA. Recently the boat has picked
up a bad vibration in the prop shaft that shakes the entire
boat. With engine off in neutral it shakes the Amel drive.
The captain bled the injectors to be sure. It is currently
running a Yanmar 4JH4 110HP with under 500 hours and a
Burntons G5 autoprop. Captains guess is that one of the
bearings failed in a blade. Current ETA to Malta is 275 NM
in light air at 4kts. Anybody have any insight that can pass
along?

Many thanks,

Bill
It's
all Good
SM #195

































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