Re: [Amel Yacht Owners] Re: Engine - Propeler problem

jose.esteller <jose.esteller@...>

Hello Dimitiris,

I can say you that i had done about 100 hours of motor with the mix oil-water with out any problem. So i think that you can continue your trip, and wait for the next haul.
It is also possible to take out the mix whit a pump and a thin tube aspiring by the hole in which the litle tank is conected to the drive. In this way it is possible to take out two or three liters of the mix and replace it with fresh oil, waiting the total replacement and repair the rings.
I am sure that you have the same problem with the front propeller !
Have a good tripe in Greece where i will go with SILVIA ( sm 2000 ) this spring.

----- Original Message -----
From: Krassopoulos Dimitris
To: ''
Sent: Monday, October 11, 2004 4:24 PM
Subject: RE: [Amel Yacht Owners] Re: Engine - Propeler problem

Thanks for the advise . I have already ordered the spare parts. My engine
hours are around 600 hours so I was planning to do it during the next haul
out in January. So you understand that I was surprised by the water in the
system as I have now to stop using the boat for a while. The temperature
today in Greece is 30 Degrees Celsius and it is really sad to have this



From: asm283 []
Sent: Monday, October 11, 2004 5:16 PM
Subject: [Amel Yacht Owners] Re: Engine - Propeler problem

Hello Dimitris

What has happened is that your wearing bearing has worn out and has
allowed water to enter the U drive system. This is an item that
needs to be replaced every 800 hours and is not a difficult job for
a skilled person. The wearing bearing is right were the prop shaft
enters the gear housing. It is a brass ring with 3 rubber inserts.
Make sure that the inserts are oriented correctly. You should have
this repaired as soon as you can, as seawater is mixing with your U-
drive gears. Have the u-drive system flushed before adding the new

I hope this helps.

Vito Ciaravino

--- In, "Dimitris" <dkra@p...> wrote:
> I have sent in the past an e-mail about the engine not increasing
> the revolutions rpm after sailing. I have monitored the problem
> I am quite sure now that the problem was due to barnacle growth on
> the propeller and not an engine problem. The time necessary to
> increase the rpm has been decreased after use of the engine. It
> seems that the blades came to the forward position more easily.
> I saw also recently that the engine was not able to increase the
> revolutions over 2500 rpm and by diving and cleaning the propeller
> the engine was able to increase to 3000 so this has been explained.
> Now I have a new problem. I found out during last week-end that
> oil in the main engine drive has become white. I understand that
> this means that sea water has entered the system. I was surprised
> I had not a problem with a rope as I have also a rope cutter in
> propeller shaft and I have checked one week end ago by diving that
> everything was ok. How urgent it is to haul out the boat and
> the oil? I do not see a big increase of the liquid height in the
> in the engine room.
> I need your experience on that. I have to replace the brass ring
> the o-rings?
> Regards
> Dimitris
> SM-Alma Libre

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