Gabriele,
I have not yet visited Columbia.. Your english is fine, no problem. I will post what I find out about the coolers sold by Foley. Thanks for planning to provide the information that you have on a source for the aluminum coolers sometime next year.
That is very interesting that you are asking the spelling of my boat’s name. I have been leaving of the accent since it does not appear anywhere on my Mac keyboard so I assumed that it was unavailable. Since you did ask about this however, I did some research on the internet and found a key sequence that will allow me to type Sueño with the accent. I should have researched this earlier! This is the boats original name, which means Dream in Spanish.
Best,
James
SV Sueño
Maramu #220
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On Dec 20, 2017, at 12:12 PM, Gabriele Antolini svsunnyside@... [amelyachtowners] <amelyachtowners@...> wrote:
James,
Sunny Side is at Todomar Yard Cartagena
Your understanding of my bad english is 100% correct.
End of January, I will be on board and I will look for where I ordered my cooler from.
The name of your boat is Sueno or Sueño ?
Regards
Gabriele
SV Sunny Side
Maramu #219
From: "James Alton lokiyawl2@... <mailto:lokiyawl2@...> [amelyachtowners]" <amelyachtowners@... <mailto:amelyachtowners@...>>
To: amelyachtowners@... <mailto:amelyachtowners@...>
Sent: Wednesday, 20 December 2017, 9:29
Subject: Re: [Amel Yacht Owners] Hurth Transmissions freewheeling folding prop
Gabriele,
I am glad that you are having good luck! Thanks for the tip on the Militec-1, what I have read about the product sounds very promising. I will order some and give it a try.
So if I understand you correctly, you changed your aluminum cooler back in 1997 when the engine had 4,000 hours on it, you now have 10,000 hours on your engine and you are still using the same cooler? May I ask where you ordered your cooler from? It seems that some people are having problems with their coolers corroding quickly.
Perhaps our boats were built side by side side since Sueno is #220? May I ask where your boat is now?
Best,
James
SV Sueno
Maramu #220
On Dec 19, 2017, at 4:00 PM, Gabriele Antolini svsunnyside@... <mailto:svsunnyside@...> [amelyachtowners] <amelyachtowners@... <mailto:amelyachtowners@...>> wrote:
Hi James
- Good care : YES , Exceptional care: I do not think so. The only thing I use , that not everyone use , is: MILITEC-1 (everywhere possible, on sea and on land) according to the producer recommendations . Nothing to do with the cooler.
- Cooler : Yes I have the small square aluminum cooler. I changed it on 97 . when I received the boat, with 4,000 hours.
From 99 to 2006 I was living on board using marinas only when could not be evitable. In the last ten years, at the end of my four months sailing season, in April, I ran the engine for one hour with fresh water(half an hour one day and half an hour, one day or two later) .
A little of luck is always welcome.
Gabriele
SV Sunny Side
Maramu #219
From: "James Alton lokiyawl2@... <mailto:lokiyawl2@...> [amelyachtowners]" <amelyachtowners@... <mailto:amelyachtowners@...>>
To: amelyachtowners@... <mailto:amelyachtowners@...>
Sent: Tuesday, 19 December 2017, 12:06
Subject: Re: [Amel Yacht Owners] Hurth Transmissions freewheeling folding prop
Gabriele Anolini,
That is amazing, you must be taking exceptional care of your transmission. Do you have a cooler on your transmission? Foley seems to be saying that 1000 hours is about all that we should expect. It would be nice to know which factors seem to lead to a longer service life.
Happy Holidays,
James
SV Sueno
Maramu #220
On Dec 19, 2017, at 11:25 AM, Gabriele Antolini svsunnyside@... <mailto:svsunnyside@...> [amelyachtowners] <amelyachtowners@... <mailto:amelyachtowners@...>> wrote:
James
I can confirm you that the Hurth 250 transmission can work much more than 4,000 hours. Mine passed 10,000 hours and , still now, never gave me a problem.
Best
Gabriele Antolini
SV Sunny Side
Maramu #219
Todomar Yard Cartagena
From: "James Alton lokiyawl2@... <mailto:lokiyawl2@...> [amelyachtowners]" <amelyachtowners@... <mailto:amelyachtowners@...>>
To: amelyachtowners@... <mailto:amelyachtowners@...>
Sent: Monday, 18 December 2017, 23:42
Subject: Re: [Amel Yacht Owners] Hurth Transmissions freewheeling folding prop
Dave,
Thanks for this information. At least I now know that at least some of the Hurth 250 transmissions installed on Maramu’s are lasting longer than the 4,000 hours that mine has. So far my transmission seems to be working fine but the failure mode that you experienced does not sound like a pleasant to experience so maybe I will do something preemptive before long.
I have heard of others having a problem with their aluminum coolers corroding quickly as well.. Without being bonded, I would think that the aluminum parts immersed in seawater would become the sacrificial items on the engine so maybe that could be part of your problem as you suspect. I am wondering however if there is more than one manufacturer of these coolers with some being made of a more corrosion resistant alloy? The original cooler on my transmission had a plate on it that in large letters had the name Hurth, Monchen, Made in West Germany. The old rusty hose clamps, hoses and the apparent age of the ID plate and mounting bolts suggests to me that this cooler had been on the transmission for a very long time.. The one that I ordered as a replacement and installed this year with all new hoses was sold by “Mr Cool” 3306107001 ZF Transmission/Gear Cooler. The replacement cooler cost $165.00 USD. The Cooler being sold by Foley is much more expensive, $395.00 which comes with a quart of their special synthetic fluid. I think I will inquire and see what they say about the large cost differential. Can you tell me where you have been buying your coolers?
In part over corrosion concerns for my cooler, I have been flushing the engine with fresh water whenever the engine will sit for more than a couple of days which I think should help to reduce the corrosion some. I think that I will open the cooler at least every couple of seasons to see how much corrosion is present.
Best,
James Alton
SV Sueno, #220
Arbatax, Italy
On Dec 18, 2017, at 8:32 PM, David Wallace svairops@hotmail..com <mailto:svairops@...> [amelyachtowners] <amelyachtowners@... <mailto:amelyachtowners@...>> wrote:
James,
Our Hurth 250 started acting up in 2002 with about 6000 hours on the engine. Intermittently it would not go into forward, first discovered when backing out of a slip which made for an interesting evolution. We had it rebuilt with no issue.
Maybe I have a grounding problem on the 4.154 but the aluminum cooler only seems to last a year or two. I now have several, and try to catch the corrosion before it gets to bad. Then I clean up the cooler and rebuild it with aluminum epoxy that I buy from Cotronics. Works really well.
Regards,
Dave
s/v Air Ops
Maramu #104
On Dec 18, 2017, at 7:50 AM, James Alton lokiyawl2@... <mailto:lokiyawl2@...> [amelyachtowners] <amelyachtowners@... <mailto:amelyachtowners@...>> wrote:
Mike,
My Maramu has a plate mounted just in front of the shift lever warning to never leave the transmission in Fwd. gear while sailing. My boat has a fixed 20” (?) 3 blade prop which can produce a large amount of torque when sailing at higher speeds. I am guessing that since your prop feathers(so produces little torque if any when feathered) that it may not matter as much which gear you use but apparently due to the design the Reverse gear is stronger and therefore safer to use when locking the prop shaft. Perhaps others can verify if this would be correct.
I also read in Foley the these gears seem to last about 1000 hours on average. The gear on my boat has the same paint as the engine and I don’t see any evidence of it having been replaced. The engine now has just over 4,000 hours. Could others comment on the life expectancy the have experienced with the Hurth gears? My boat appears to have had an aluminum cooler for a very long time, it may in fact have been original based on the installation. I replaced the old cooler with a new aluminum one.. The old one was not leaking but when cleaning out the inside I found several pin holes that were only plugged with corrosion so it was overdue.. I just got an email back from Foley saying that they have discontinued selling the stainless coolers and now only sell the aluminum. I wonder if there were corrosion concerns betwee the aluminum gear case and the stainless coolers. I will try to find out.
Best,
James
SV Sueno, Maramu #220
On Dec 18, 2017, at 11:19 AM, 'Mike Ondra' mdondra@... <mailto:mdondra@...> [amelyachtowners] <amelyachtowners@... <mailto:amelyachtowners@...>> wrote:
Who’d of thought there was so much to know about transmissions and their lubrication! Foley website full of interesting information. On a related topic...
Dr.. Diesel Tip #101 at Foley says DO NOT put Hurth trans into forward to stop freewheeling, only reverse.
We have always put the trans in forward to stop the freewheeling and fold the Autoprop when under sail. Given Amels have a “C” drive, does Dr. Diesels Tip apply? Have to pose the question just in case there are opinions among our ranks.
Mike Ondra
Aletes SM#240
Falmouth Harbor, Antigua
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