Date   

Re: [Amel Yacht Owners] Re: Chain counter

Amel Salvagny
 

I did replace my old chain counter with the latest Quick and it even uses the same sensor as the old one. Absolutely no problem lemon installing a Quick counter.

Best regards
Lars
Yacht Salvagny 
Santorin #79 currently in Denmark



Sendt fra min Samsung Galaxy-smartphone.

-------- Oprindelig besked --------
Fra: "Bill greatketch@... [amelyachtowners]" <amelyachtowners@...>
Dato: 06/09/2016 23.29 (GMT+01:00)
Til: amelyachtowners@...
Emne: Re: [Amel Yacht Owners] Re: Chain counter

 

The chain counter on our boat had been replaced by a model from Quick.  It's not quite a "drop-in" replacement, but is a nice piece of equipment.

A Quick CHC1202M. Like this:

Bill Kinney
SM#160, Harmonie
Narragansett Bay, RI, USA


On Sep 6, 2016, at 17:22, Andrew Lamb andrew.lamb@... [amelyachtowners] <amelyachtowners@...> wrote:

 

Pat

Our Chain counter also stopped working I made contact with Pochon who do not make these anymore but can repair them - email is accueilsavlr 'at ' pochon.com

Andrew
Ronpische
SM 472


On 6 Sep 2016, at 23:19, Patrick Mcaneny sailw32@... [amelyachtowners] <amelyachtowners@...> wrote:

 

Alan, I looked through the Pochon Catalogue , it looked like they are a distributor of thousands of marine products , but I could not find the chain counter.Do you know that they manufacture , rather than just sell ? I figure the Z has to stand for something.
Thanks,
Pat SM 123


-----Original Message-----
From: divanz620@... [amelyachtowners] <amelyachtowners@...>
To: amelyachtowners <amelyachtowners@...>
Sent: Tue, Sep 6, 2016 4:24 pm
Subject: [Amel Yacht Owners] Re: Chain counter

 
They were manufactured by Pochon in France

Pochon S. A.
Avenue Michel CREPEAU78501 
17000 La Rochelle
France
Tel.: +33-546 413 053
Fax: +33-546 505 857
E-Mail:commercial@...
WEB: www.pochon.com
Mr. Didier Dupois

Good luck

Cheers
Alan
Elyse SM437


Re: [Amel Yacht Owners] Masthead lights do not last

Ben and Gayle Super Maramu #347
 

Thanks Alan. I'm inclined to agree; that is, it is most probably an issue with masthead lamp holder.  My charger has manual equalization which has not been used; settings are appropriate for my battery type.   

Ben Driver
La Bella Vita
SM #347

On Sep 7, 2016, at 1:14 PM, divanz620@... [amelyachtowners] <amelyachtowners@...> wrote:

 

No I don't think so....you can't get voltage surges with a big battery bank.

IF it could possibly happen you'd be having all sorts of issues with lamps and other 24VDC devices.
The ONLY way you MIGHT have an issue with this would be if you used the EQUALISE cycle on your battery charger while the masthead light was on. The EQUALISE cycle raises the voltage to around 32VDC for a while, but that is something you would rarely do, possibly only if you had flooded batteries that you suspected of being sulphated, and if you know about equalising batteries, you would also know to turn off anything on the DC circuit before starting to do it.
Its much more likely that you have bad connections, salt water ingress into the lamp holder.....
Cheers
Alan
Elyse SM437


Re: [Amel Yacht Owners] Masthead lights do not last

Alan Leslie
 

No I don't think so....you can't get voltage surges with a big battery bank.
IF it could possibly happen you'd be having all sorts of issues with lamps and other 24VDC devices.
The ONLY way you MIGHT have an issue with this would be if you used the EQUALISE cycle on your battery charger while the masthead light was on. The EQUALISE cycle raises the voltage to around 32VDC for a while, but that is something you would rarely do, possibly only if you had flooded batteries that you suspected of being sulphated, and if you know about equalising batteries, you would also know to turn off anything on the DC circuit before starting to do it.
Its much more likely that you have bad connections, salt water ingress into the lamp holder.....
Cheers
Alan
Elyse SM437


Re: [Amel Yacht Owners] Masthead lights do not last

Ben and Gayle Super Maramu #347
 

I run then generator to charge the batteries when at anchor so I was thinking it possible that the charger is creating too much DC that is somehow getting through that huge stabilizing battery bank to lamp circuit. You think this not possible?  


Ben and Gayle
La Bella Vita 
SM #347


On Wednesday, September 7, 2016, 12:53 PM, divanz620@... [amelyachtowners] wrote:

 

I don't see how you could have a voltage surge when running the generator that would affect the masthead lamps.

The generator produces 220VAC that powers the battery chargers which are connected to your big house bank of batteries. The generator has no other connection to the 24VDC system.
The chargers slowly raise the voltage of the batteries to the absorption voltage which is maintained for a while and then dropped slowly to a stabilised float voltage.
That bank of batteries has to be the biggest voltage stabiliser ever.
Unless there is something seriously wrong with your battery chargers, how can you get a voltage surge?
Cheers
Alan
Elyse SM437



Re: [Amel Yacht Owners] Masthead lights do not last

Alan Leslie
 

I don't see how you could have a voltage surge when running the generator that would affect the masthead lamps.
The generator produces 220VAC that powers the battery chargers which are connected to your big house bank of batteries. The generator has no other connection to the 24VDC system.
The chargers slowly raise the voltage of the batteries to the absorption voltage which is maintained for a while and then dropped slowly to a stabilised float voltage.
That bank of batteries has to be the biggest voltage stabiliser ever.
Unless there is something seriously wrong with your battery chargers, how can you get a voltage surge?
Cheers
Alan
Elyse SM437



SIPHON BREAK USING A VENTED LOOP -RAW WATER ENGINE COOLING SYSTEM

Alejandro Paquin
 

Good afternoon, does anyone have images or a diagram of an anti- siphon installation on the raw water side of the engine cooling system? I am considering this step in addition to a few others to avoid water backing into the engine exhaust system on the Yanmar 4JH4-HTE (repowered) on our Older Maramu.


Alex Paquin

SIMPATICO

Older Maramu Hull #94, 1981


Re: [Amel Yacht Owners] Masthead lights do not last

Bill & Judy Rouse <yahoogroups@...>
 

Ben,

When you measure the voltage, measure it at the mast top and at the junction located outside the forward berth behind the Velcro'd panel.

It should be the same. I would guess that the set screws clamping the wire to the fixture might be the source of corrosion issues, rather than the wire. Amel uses some really good wire in the mast that will likely last 25 years or more.

Bill
BeBe 387

On Wed, Sep 7, 2016 at 10:14 AM, Ben Driver/YAHOO joedoakes66@... [amelyachtowners] <amelyachtowners@...> wrote:
 

This failure is anchor light only; only motor running is genset.  My suspicion is voltage surge while generator is running or an issue with fixture.  

Ben Driver
La Bella Vita
SM #347

On Sep 5, 2016, at 9:05 AM, James Alton lokiyawl2@... [amelyachtowners] <amelyachtowners@yahoogroups.com> wrote:

 

Ben and Gayle,


  That is an odd problem.  It seems that if you were having a large voltage surge that it would affect other bulbs as well.  Could it be that you have a resonant vibration atop the spar when running the engine at a certain RPM’s and the vibration is causing the bulb to fail?  This is just a guess of course.

Best,

James

Sueno, Maramu #220
On Sep 5, 2016, at 12:22 PM, joedoakes66@... [amelyachtowners] <amelyachtowners@yahoogroups.com> wrote:

Since we bought our SM last year (Feb 2015) we've  replaced the anchor light bulb 5 times.  The boat was little used - fewer than 800 hours on engine and generator - and we've  had only the usual maintenance issues which makes this issue most perplexing.  We're trying to determine what could cause premature bulb failures.  I've suspected a bad batch of bulbs; a surge in the electrical when running the generator; or perhaps corroded fitting causing an on/off for the bulb thereby shortening their life. 


Has anyone had a similar experience?  Also it would wonderful to have a source for high quality bulbs.

Thanks
Ben and Gayle
La Bella Vita
SM 347
Port Louis, Grenada




Re: [Amel Yacht Owners] Re: Climma pump non return valve

Bill & Judy Rouse <yahoogroups@...>
 

Ron,

I believe you. But, I strongly believe that the other contributing factor to your experience was some obstruction in the lines to/from the sea chest and manifold, the strainer in the sea chest, or the line from the strainer to the outside of the boat. Did you check all three?
  1. The strainer is easy to visually check
  2. The line from the sea chest has to be removed to check it. See the following photo album
  3. You will need something like what is illustrated in this link to check the line from the strainer to the outside of the boat: https://groups.yahoo.com/neo/groups/amelyachtowners/photos/albums/1208267126/lightbox/250648401?orderBy=ordinal&sortOrder=asc&photoFilter=ALL#zax/250648401
You might also look at all of the photos in this photo album

I hope this helps you.

Bill
BeBe 387

On Wed, Sep 7, 2016 at 11:12 AM, ronheyselaar@... [amelyachtowners] <amelyachtowners@...> wrote:
 

I had major issues with my desal LP pump not able to supply the HP pump. Checked all systems and eventually found the non return valves of both the anchor wash and AC pumps malfunctioning causing air to be sucked through the pumps into the LP pump. Couldn't believe it at first but all worked fine as long as I run both pumps linked to that manifold. Changed the non return valves and all ok. Ron AMEL 54 #157



Re: Climma pump non return valve

ronheyselaar@...
 

I had major issues with my desal LP pump not able to supply the HP pump. Checked all systems and eventually found the non return valves of both the anchor wash and AC pumps malfunctioning causing air to be sucked through the pumps into the LP pump. Couldn't believe it at first but all worked fine as long as I run both pumps linked to that manifold. Changed the non return valves and all ok. Ron AMEL 54 #157


Re: [Amel Yacht Owners] Masthead lights do not last

Ben and Gayle Super Maramu #347
 

Alex,
I normally use Anchor brand incandescent bulbs.  However recently I used an LED from Marine LED Shop.  It failed as well.  I do not have an adjustable voltage stabilizer.  So far only premature bulb failure has been anchor light. I will soon check voltage at masthead. 

Ben Driver
La Bella Vita
SM #347

On Sep 5, 2016, at 9:04 AM, Alexandre Uster von Baar uster@... [amelyachtowners] <amelyachtowners@...> wrote:

 

Good afternoon Ben,

What type of 24 Volt bulb do you use?
LED?

Do you have (adjustable) voltage-stabilizers?

Here are pictures from when I did not what they were.
http://nikimat.com/mast_tricolor_anchor_light_connection.html

Mark (SM #275 Creampuff) told me they were DXE VR200 voltage regulator.

Wish I could help more.

Alexandre

--------------------------------------------
On Mon, 9/5/16, joedoakes66@... [amelyachtowners] <amelyachtowners@...> wrote:

Subject: [Amel Yacht Owners] Masthead lights do not last
To: amelyachtowners@...
Date: Monday, September 5, 2016, 10:22 AM


 









Since we bought our SM last year (Feb 2015)
we've  replaced the anchor light bulb 5 times.  The
boat was little used - fewer than 800 hours on engine and
generator - and we've  had only the usual maintenance
issues which makes this issue most perplexing.  We're
trying to determine what could cause premature bulb
failures.  I've suspected a bad batch of bulbs; a surge
in the electrical when running the generator; or perhaps
corroded fitting causing an on/off for the bulb thereby
shortening their life. 
Has anyone had a similar experience?
 Also it would wonderful to have a source for high quality
bulbs.
ThanksBen and
GayleLa Bella VitaSM
347Port Louis, Grenada









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Re: [Amel Yacht Owners] Contacting Amel

James Sterling
 

Very helpful, thank you sir.
 


Sent from Yahoo Mail. Get the app


On Wednesday, September 7, 2016 10:12 AM, "'Bill & Judy Rouse' yahoogroups@... [amelyachtowners]" wrote:


 
James,

Part of your problem is that Amel closes for a month in the summer.

That said, I believe that for best results an email to SAV"at"amel.fr should include the following:
  1. The best and straightforward description of the part(s) that you want to purchase Remember their first language is French, although Maud speaks and writes excellent English.
  2. Your boat's Model and Hull Number
  3. It at all possible, a photo of the part you wish to purchase
  4. I always use the following on the subject line: Parts RFQ BeBe SM #387
  5. When Amel SAV replies to the RFQ (price & availability) I email SAV credit card information.
I usually receive a reply to the RFQ within 2 business days. I think that if you give SAV (Service After Sale) an accurate, clear, and complete description and photo of what you are interested in purchasing, you will receive a prompt response. If not, your email will go to the bottom of the pile.

I would not use terms like, "I think I might..." "...what do you think?"

You should be aware that since owners generally hold Amel responsible for shipments missing in transit, Amel will chose the method of shipment and it will usually be the best and most expensive. You will not have a choice. If you are in the Caribbean, Amel has a service team at Le Marin in Martinique. They stock common parts and can usually get parts for you within a week. The parts are 30% more in Martinique than from La Rochelle, but can be cheaper in the long-run to pick up in Martinique.

Hope this helps you.

Bill
BeBe 387
Currently Trinidad

On Wed, Sep 7, 2016 at 9:49 AM, jamessterling88@... [amelyachtowners] <amelyachtowners@...> wrote:
 
Can anyone tell me the procedure for ordering parts from Amel?  We've tried for the last month to get a response from them by email to no avail.  They simply don't respond.  There was no particular hurry to justify a phone call but that's next.





Re: [Amel Yacht Owners] Masthead lights do not last

Ben and Gayle Super Maramu #347
 

The stabilizer does sound like a good idea for a lot of reasons.  

Ben Driver
La Bella Vita
SM #347

On Sep 5, 2016, at 9:12 AM, Kent Robertson karkauai@... [amelyachtowners] <amelyachtowners@...> wrote:

 

I had a similar problem several years ago when I switch to LED bulbs. It turned out that I needed a voltage stabilizer, which prevents both spikes and drops in voltage. The LED bulbs first came out, they were much more sensitive than they are now two changes in voltage.   Since I installed the stabilizer, I have not had a problem.
Kent 
SM 243
Kristy

Kent Robertson
828-234-6819 voice/text

On Sep 5, 2016, at 10:22 AM, joedoakes66@... [amelyachtowners] <amelyachtowners@...> wrote:

 

Since we bought our SM last year (Feb 2015) we've  replaced the anchor light bulb 5 times.  The boat was little used - fewer than 800 hours on engine and generator - and we've  had only the usual maintenance issues which makes this issue most perplexing.  We're trying to determine what could cause premature bulb failures.  I've suspected a bad batch of bulbs; a surge in the electrical when running the generator; or perhaps corroded fitting causing an on/off for the bulb thereby shortening their life. 


Has anyone had a similar experience?  Also it would wonderful to have a source for high quality bulbs.

Thanks
Ben and Gayle
La Bella Vita
SM 347
Port Louis, Grenada


Re: [Amel Yacht Owners] Masthead lights do not last

Ben and Gayle Super Maramu #347
 

This failure is anchor light only; only motor running is genset.  My suspicion is voltage surge while generator is running or an issue with fixture.  

Ben Driver
La Bella Vita
SM #347

On Sep 5, 2016, at 9:05 AM, James Alton lokiyawl2@... [amelyachtowners] <amelyachtowners@...> wrote:

 

Ben and Gayle,


  That is an odd problem.  It seems that if you were having a large voltage surge that it would affect other bulbs as well.  Could it be that you have a resonant vibration atop the spar when running the engine at a certain RPM’s and the vibration is causing the bulb to fail?  This is just a guess of course.

Best,

James

Sueno, Maramu #220
On Sep 5, 2016, at 12:22 PM, joedoakes66@... [amelyachtowners] <amelyachtowners@...> wrote:

Since we bought our SM last year (Feb 2015) we've  replaced the anchor light bulb 5 times.  The boat was little used - fewer than 800 hours on engine and generator - and we've  had only the usual maintenance issues which makes this issue most perplexing.  We're trying to determine what could cause premature bulb failures.  I've suspected a bad batch of bulbs; a surge in the electrical when running the generator; or perhaps corroded fitting causing an on/off for the bulb thereby shortening their life. 


Has anyone had a similar experience?  Also it would wonderful to have a source for high quality bulbs.

Thanks
Ben and Gayle
La Bella Vita
SM 347
Port Louis, Grenada



Re: [Amel Yacht Owners] Contacting Amel

Bill & Judy Rouse <yahoogroups@...>
 

James,

Part of your problem is that Amel closes for a month in the summer.

That said, I believe that for best results an email to SAV"at"amel.fr should include the following:
  1. The best and straightforward description of the part(s) that you want to purchase Remember their first language is French, although Maud speaks and writes excellent English.
  2. Your boat's Model and Hull Number
  3. It at all possible, a photo of the part you wish to purchase
  4. I always use the following on the subject line: Parts RFQ BeBe SM #387
  5. When Amel SAV replies to the RFQ (price & availability) I email SAV credit card information.
I usually receive a reply to the RFQ within 2 business days. I think that if you give SAV (Service After Sale) an accurate, clear, and complete description and photo of what you are interested in purchasing, you will receive a prompt response. If not, your email will go to the bottom of the pile.

I would not use terms like, "I think I might..." "...what do you think?"

You should be aware that since owners generally hold Amel responsible for shipments missing in transit, Amel will chose the method of shipment and it will usually be the best and most expensive. You will not have a choice. If you are in the Caribbean, Amel has a service team at Le Marin in Martinique. They stock common parts and can usually get parts for you within a week. The parts are 30% more in Martinique than from La Rochelle, but can be cheaper in the long-run to pick up in Martinique.

Hope this helps you.

Bill
BeBe 387
Currently Trinidad

On Wed, Sep 7, 2016 at 9:49 AM, jamessterling88@... [amelyachtowners] <amelyachtowners@...> wrote:
 

Can anyone tell me the procedure for ordering parts from Amel?  We've tried for the last month to get a response from them by email to no avail.  They simply don't respond.  There was no particular hurry to justify a phone call but that's next.




Re: [Amel Yacht Owners] Masthead lights do not last

Ben and Gayle Super Maramu #347
 

Thanks Bill.  I will use the meter to check masthead voltage.  I did try an LED but it too failed in 60 days.  So far only anchor light has frequent failures.  

Ben Driver
La Bella Vita
SM #347

On Sep 5, 2016, at 9:03 AM, 'Bill & Judy Rouse' yahoogroups@... [amelyachtowners] <amelyachtowners@...> wrote:

 

We had the same issue years ago and never determined what the problem was, but when we replaced it with an LED, the problem went away. Once I read that some incandescent bulbs will operate less than full life if the voltage is greater than or less than 10% of the bulb's rating. I can't find that reference, but that could be the cause, or a bad batch. Next time you are up there, bring a multi-meter and check the voltage. It that is the issue, an LED will solve the problem because of its wide range of voltage. I would also coat the new bulb base with corrosionX to ensure good contact, but the problem could be where the wires connect to the mast-top fixture.

Bill
BeBe, 387
Trinidad

On Mon, Sep 5, 2016 at 10:22 AM, joedoakes66@... [amelyachtowners] <amelyachtowners@...> wrote:
 

Since we bought our SM last year (Feb 2015) we've  replaced the anchor light bulb 5 times.  The boat was little used - fewer than 800 hours on engine and generator - and we've  had only the usual maintenance issues which makes this issue most perplexing.  We're trying to determine what could cause premature bulb failures.  I've suspected a bad batch of bulbs; a surge in the electrical when running the generator; or perhaps corroded fitting causing an on/off for the bulb thereby shortening their life. 


Has anyone had a similar experience?  Also it would wonderful to have a source for high quality bulbs.

Thanks
Ben and Gayle
La Bella Vita
SM 347
Port Louis, Grenada



Re: [Amel Yacht Owners] Climma pump non return valve

Bill & Judy Rouse <yahoogroups@...>
 

Thanks, Bill. I also thought that the check valve would keep water from back-flowing in pounding seas.

Best,

Bill
BeBe 387

On Wed, Sep 7, 2016 at 9:18 AM, Andrew Lamb andrew.lamb@... [amelyachtowners] <amelyachtowners@...> wrote:
 

HI Bill

 

Many thanks – that makes a lot of sense

 

Andrew

 

 

Ronpische

SM 472

Canet–en-Roussillon

 

 

 

From: amelyachtowners@yahoogroups.com [mailto:amelyachtowners@yahoogroups.com]
Sent: 7 September 2016 16:17
To: James Wendell ms42phantom54@... <amelyachtowners@yahoogroups.com>
Subject: Re: [Amel Yacht Owners] Climma pump non return valve

 

 

There is a good reason to use a non-return valve in this application, although it took a little thinking about it before I realized what it is, and it has nothing to do with the outlet side of the pump.

 

The suction side of the pump shares a saltwater feed with many other pumps.  Engine cooling, toilet, watermaker, etc.  If there was a restriction in the suction side of the system anywhere, say a partially clogged intake screen, a vacuum would be drawn and water would flow backwards through the AC pump. This would eventually allow air into the system and break prime for everything. 

 

The AC pump is a centrifugal pump and would offer no resistance to back flow when it is off.  Most of the other pumps are, more or less, positive displacement pumps and backflow would be either restricted or impossible.

 

So, Climmia support is right, the check valve is a potential clog point, reduces flow, and can fail, but it is the small price we have to pay for having a single hole in our hulls!

 

A take home message is if you are having trouble with raw water feed, remember why that check valve is there and what can happen if it jams open with a tiny piece of trash.

 

Bill Kinney

SM #160, Harmonie

Newport, RI, USA

“Ships and men rot in port."

 

 

 

 

On Sep 7, 2016, at 09:55, Barry Connor connor_barry@... [amelyachtowners] <amelyachtowners@yahoogroups.com> wrote:

 

 

I just put a March magnet drive and kept the non return valve. It works fine, kept the ground wire attached. Very quite and does not get hot.

Bought from Florida, shipped to France. Less than 300€. Came with fittings.

Barry and Penelope

AMEL 54. #17


On Sep 7, 2016, at 11:02 AM, Andrew Lamb andrew.lamb@... [amelyachtowners] <amelyachtowners@yahoogroups.com> wrote:

 

 

Our AC pump stopped working and I am just about to replace this with an Argal Magnet driven pump recommended by Climma – the original pump has a brass non-return valve fitted to its outlet – and I presume that this has a purpose. The pump suppliers tell me that this is not required on the new pump and recommend not installing this because of their tendency to get blocked, unless there is a specific installation reason such as a shared outlet. I was wondering if anyone knows why Amel have installed this – as far as I can work out the outlet is dedicated for the AC water circuit.

 

Andrew

Ronpische

SM 472

Canet–en-Roussillon

 

 

 

 

 



Contacting Amel

James Sterling
 

Can anyone tell me the procedure for ordering parts from Amel?  We've tried for the last month to get a response from them by email to no avail.  They simply don't respond.  There was no particular hurry to justify a phone call but that's next.



Re: [Amel Yacht Owners] Climma pump non return valve

Andrew & Kate Lamb
 

HI Bill

 

Many thanks – that makes a lot of sense

 

Andrew

 

 

Ronpische

SM 472

Canet–en-Roussillon

 

 

 

From: amelyachtowners@... [mailto:amelyachtowners@...]
Sent: 7 September 2016 16:17
To: James Wendell ms42phantom54@... <amelyachtowners@...>
Subject: Re: [Amel Yacht Owners] Climma pump non return valve

 

 

There is a good reason to use a non-return valve in this application, although it took a little thinking about it before I realized what it is, and it has nothing to do with the outlet side of the pump.

 

The suction side of the pump shares a saltwater feed with many other pumps.  Engine cooling, toilet, watermaker, etc.  If there was a restriction in the suction side of the system anywhere, say a partially clogged intake screen, a vacuum would be drawn and water would flow backwards through the AC pump. This would eventually allow air into the system and break prime for everything. 

 

The AC pump is a centrifugal pump and would offer no resistance to back flow when it is off.  Most of the other pumps are, more or less, positive displacement pumps and backflow would be either restricted or impossible.

 

So, Climmia support is right, the check valve is a potential clog point, reduces flow, and can fail, but it is the small price we have to pay for having a single hole in our hulls!

 

A take home message is if you are having trouble with raw water feed, remember why that check valve is there and what can happen if it jams open with a tiny piece of trash.

 

Bill Kinney

SM #160, Harmonie

Newport, RI, USA

“Ships and men rot in port."

 

 

 

 

On Sep 7, 2016, at 09:55, Barry Connor connor_barry@... [amelyachtowners] <amelyachtowners@...> wrote:

 

 

I just put a March magnet drive and kept the non return valve. It works fine, kept the ground wire attached. Very quite and does not get hot.

Bought from Florida, shipped to France. Less than 300€. Came with fittings.

Barry and Penelope

AMEL 54. #17


On Sep 7, 2016, at 11:02 AM, Andrew Lamb andrew.lamb@... [amelyachtowners] <amelyachtowners@...> wrote:

 

 

Our AC pump stopped working and I am just about to replace this with an Argal Magnet driven pump recommended by Climma – the original pump has a brass non-return valve fitted to its outlet – and I presume that this has a purpose. The pump suppliers tell me that this is not required on the new pump and recommend not installing this because of their tendency to get blocked, unless there is a specific installation reason such as a shared outlet. I was wondering if anyone knows why Amel have installed this – as far as I can work out the outlet is dedicated for the AC water circuit.

 

Andrew

Ronpische

SM 472

Canet–en-Roussillon

 

 

 

 

 


Re: [Amel Yacht Owners] Climma pump non return valve

Bill Kinney <greatketch@...>
 

There is a good reason to use a non-return valve in this application, although it took a little thinking about it before I realized what it is, and it has nothing to do with the outlet side of the pump.

The suction side of the pump shares a saltwater feed with many other pumps.  Engine cooling, toilet, watermaker, etc.  If there was a restriction in the suction side of the system anywhere, say a partially clogged intake screen, a vacuum would be drawn and water would flow backwards through the AC pump. This would eventually allow air into the system and break prime for everything. 

The AC pump is a centrifugal pump and would offer no resistance to back flow when it is off.  Most of the other pumps are, more or less, positive displacement pumps and backflow would be either restricted or impossible.

So, Climmia support is right, the check valve is a potential clog point, reduces flow, and can fail, but it is the small price we have to pay for having a single hole in our hulls!

A take home message is if you are having trouble with raw water feed, remember why that check valve is there and what can happen if it jams open with a tiny piece of trash.

Bill Kinney
SM #160, Harmonie
Newport, RI, USA
“Ships and men rot in port."





On Sep 7, 2016, at 09:55, Barry Connor connor_barry@... [amelyachtowners] <amelyachtowners@...> wrote:


I just put a March magnet drive and kept the non return valve. It works fine, kept the ground wire attached. Very quite and does not get hot.
Bought from Florida, shipped to France. Less than 300€. Came with fittings.
Barry and Penelope
AMEL 54. #17


On Sep 7, 2016, at 11:02 AM, Andrew Lamb andrew.lamb@... [amelyachtowners] <amelyachtowners@...> wrote:

 

Our AC pump stopped working and I am just about to replace this with an Argal Magnet driven pump recommended by Climma – the original pump has a brass non-return valve fitted to its outlet – and I presume that this has a purpose. The pump suppliers tell me that this is not required on the new pump and recommend not installing this because of their tendency to get blocked, unless there is a specific installation reason such as a shared outlet. I was wondering if anyone knows why Amel have installed this – as far as I can work out the outlet is dedicated for the AC water circuit.

 

Andrew

Ronpische

SM 472

Canet–en-Roussillon

 

 





Re: [Amel Yacht Owners] Climma pump non return valve

Barry Connor
 

I just put a March magnet drive and kept the non return valve. It works fine, kept the ground wire attached. Very quite and does not get hot.
Bought from Florida, shipped to France. Less than 300€. Came with fittings.
Barry and Penelope
AMEL 54. #17


On Sep 7, 2016, at 11:02 AM, Andrew Lamb andrew.lamb@... [amelyachtowners] <amelyachtowners@...> wrote:

 

Our AC pump stopped working and I am just about to replace this with an Argal Magnet driven pump recommended by Climma – the original pump has a brass non-return valve fitted to its outlet – and I presume that this has a purpose. The pump suppliers tell me that this is not required on the new pump and recommend not installing this because of their tendency to get blocked, unless there is a specific installation reason such as a shared outlet. I was wondering if anyone knows why Amel have installed this – as far as I can work out the outlet is dedicated for the AC water circuit.

 

Andrew

Ronpische

SM 472

Canet–en-Roussillon