Re: [Amel Yacht Owners] Re: Autoprop vs Maxprop and specs of each

Colin - ex SV Island Pearl

Hi Danny

Nice to hear from you and thank you for these tips.

I had not thought of greasing under water but of course if one pushes the grease right through and out there would be no risk of saltwater ingress. Good thought.

Of course I need say no more good things about the brilliance of the Super Maramu's as I would be preaching to the converted on this site.

Best regards

On Fri, Oct 12, 2018 at 12:57 AM Danny and Yvonne SIMMS simms@... [amelyachtowners] <amelyachtowners@...> wrote:

Hi Colin,

great that you are going so well. There were queries on the forum a while back about when to reef, when to heave to, and when to wish you were not there. Your experience mirrors mine. The SM is a phenomenal off shore design and she looks after you in conditions where other designs are in trouble or at the least giving the crew a hard time. We did a big crossing (1200 miles, 200 a day) in boisterous conditions and all my crew including Yvonne agreed if we lived to 100 we would never get a dream run like that again. A Beneteau 50 came in after us saying, "Oh my God, it was hell out there" Horses for courses. Is your wife (sorry forget her name) doing the passages with you? As to greasing the prop. Mate of mine once said to me, grease and oil are the cheapest spare parts you will ever buy. I have greased mine in water easily (so long as you are not prone to dropping little screws). The trick is to have several spares, then you will never drop one.

Kind Regards


On 11 October 2018 at 20:44 "Sailing Island Pearl colin.d.streeter@... [amelyachtowners]" <amelyachtowners@...> wrote:



Hi Alan

Thanks for those comments which make me wonder if this is just a prop grease issue??? Let me explain ...
Firstly I should say that this boat has never been cruised before Lauren and I set off 1.75 years ago. Up until before I owned it the previous owner had done just 600 hrs on the engine and half that on the generator in 10 years of ownership, plus employed an Amel technician bi-weekly for 10 years to care for her. Based on this I doubt that I could have any U Drive issues or major prop wear as we have been very careful owners too.

I had originally intended to do my normal 2 year haul-out in Cape Town but we became pinned down by bad weather in Durban unable to get any 33hr+ weather windows to sail down to East London on this notoriously dangerous coastline. Because of this, and with time for the Cape Town haul-out dwindling, I haul out in Durban instead, and did the normal prop wearing bearing replacement, bottom paint, plus lifted the waterline stripe.

On turning the prop blades out the water they didn't seem as smooth as normal, and on top of this, in my rush to get back into the water when a possible good weather window was forming, I did not re-grease the prop. That could possibly be the source of my issues, and rather foolish as I have always been so painstakingly careful to follow each and every step to the letter!! In fact I have never greased this prop as I simply sent it back to Bruntons last time to do the bearing change and grease in their factory.

In order to make a run directly for Cape Town (900nm approx) I sailed out of Durban early into the end of the previous SW front and therefore had to motor sail for a day before we picked up good wind and current. Over the next 3 days we shot down the coast breaking all our past records with 3 consecutive 200nm days with our best ever 24hrs clocking up 225nm!! Great sailing indeed and we ran as hard as we could direct for Cape Town right out at sea with pole out and all sails up until rounding Cape Agulus (most southern tip of Africa) where we had to turn NW into un-predicted 30kts head wind and 4+ knot adverse current making for hard motoring to maintain just 3 kts forward motion. When I say hard, that means max 2000 RPM on the Yanmar 75 (very seldom would I ever run the motor above this).

It was at this time that I noticed more prop noise and that there was a slight resultant vibration on the top of the UDrive unit only, not on the main engine side at all. We immediately reduced to usual 1400 - 1600 max revs and crawled into Cape Town to ensure no damage could be done. At those revs there was absolutely no vibration visable at all.

I will drop you a personal email sometime regarding the Indian Ocean crossing as it has been awesome and I hghly recommend it, but course you can also follow our videos on "Sailing Island Pearl" , but in summary from far east Indonesia through Singapore, Malaysia, Thailand, Maldives, Chagos, Rodrigues, Mauritius, Runion, Madagascar and now South Africa we have spent 1.75 years in the Indian Ocean and absolutely loved every minute of it. We have faced 50+ knots, 6m+ seas and this boat has been unbelievable as it never ever felt unsafe or out of control to either myself or any crew on board. These are outstanding boats indeed and I learn to respect Captain Amel more and more every day that I sail and live aboard the Amel Super Maramu.

Best regards
Colin Streeter
SV Island Pearl II, SM#332.
Royal Cape Yacht Club, Cape Town

On Thu, Oct 11, 2018 at 12:17 PM divanz620@... [amelyachtowners] < amelyachtowners@...> wrote:

Hi Colin,

i don't know where that information came from about later SMs having Maxprops.
Elyse is 2004 and we have the Autoprop.
i changed the bearings 4 years ago, even though there were no issues. It wasn't a difficult job with the right tools.
 We've since put 1300 hours on the engine and no problems with the Autoprop, no strange vibrations.
I grease it every time we are out of the water for whatever reason.

We'll do the bearings again next haul for C-drive, antifoul etc.

How was your Indian Ocean crossing ?

Elyse SM437



Colin Streeter
0411 016 445




Colin Streeter
0411 016 445

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