Re: Prop shaft bearing

Rainer Huthmacher <thelastoneever@...>

Thanks again for all the feedback...
Miles, I bought a normal car alternator and isolated the ground myself. It’s a small 30amp alternator which produces some charging at low revs. Then I put a 25 cm pulley to the shaft and a 5cm pulley on the alternator...
All together the cost was less than 400.- €.  

Changing from a SM to a Sharki was not so easy. I don’t miss any living room space, but I do miss the storage space of the SM. 
Basically I carry the same equipment. I installed 600w of solar power and a Silent Wind aero generator ( which I don’t recommend, the regulator is a piece of crap) because I want to make my fresh water without any engine. I even installed a washing machine....
But I miss the SM still very much.
Fair winds,

On 4. Mar 2019, at 03:33, smiles bernard via Groups.Io <smilesbernard@...> wrote:

Hi Rainer

We were next to Rock n Roll in Santa Cruz last year. 

My kids and I came to admire her. Very nicely set up boat. I think the sharkis are great boats. We have had the pleasure of hanging out on a friends - also in Tenerife. Aneki (spelling?!)

Is the vibration constant or only at certain speeds ?

I had vibration on the prop shaft when surfing down waves on recent Atlantic crossing. Anything over 7 or 8kts roughly. 

 Then when we switched the motor on in Barbados we had what sounded initially like rough  idle. 

On inspection it was the engine mounts and alignment causing both issues 

On last section of the crossing we had 4-5m seas and winds gusting up to 45 kts and I think the motion did the old mounts no favours. 

We have just swapped out the engine mounts so hope that’s the last of it but as yet I’ve not hit speeds to test it properly

I’d guess alignment 1st

Does anyone have any experience of rewinding the prop shaft alternator?
I’m guessing ours has not been touched since new. It has been totally amazing on the long ocean passage. I can’t imagine why all boats don’t have them ! So interested in the reliability and service recommendations in prep for our return leg to UK in May. 

Many thanks and all the best

Maramu 162

On 3 Mar 2019, at 20:15, Peter Jaeger via Groups.Io <mallamok@...> wrote:

Hi Rainer
Welcom back. In 2014 I was a little bit too late for buying your SM.
Wilson SM003/La Rochelle

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Am Freitag, März 1, 2019, 07:14 schrieb Rainer Huthmacher via Groups.Io <thelastoneever@...>:

Thank you gentlemen....

On 1. Mar 2019, at 15:43, amelforme <jfpottercys@...> wrote:

On the Sharki, you must undo the motor mounts and lift the engine up about 20"/inches 50 cm in order to remove the propeller shaft as it is too long to fit as it hits the rudder skeg. It is an easy 6 hour job if nothing is badly rusted.

To remove the prop shaft/cutless bearing, remove the propeller, un-tighten the bolt holding the bearing in place on the side of the stern tube and use a pipe wrench or a chain wrench to rotate the cutless out. Easy one hour job.


All The Best, Joel



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-----Original Message-----
From: <> On Behalf Of Rainer Huthmacher via Groups.Io
Sent: Friday, March 1, 2019 6:07 AM
Subject: [AmelYachtOwners] Prop shaft bearing


Hello Captains of Amels,

I have to change the cutless bearing of my Sharki, because of vibrations under engine wich occurred after I was installing a shaft alternator...

How do I pull the propshaft?

Do I really have to lift the engine?

Any suggestions of a Sharki, Maramu or Mango owner would be greatly appreciated....

Rainer Huthmacher

Former owner of SM#69 “Yin Yang”,now owner of Sharki#83 “Rock’n Roll”,currently in Teneriffe...

It feels good to back in this great forum





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