Date   

Re: 24v Raymarine Linear Drive Clutch Opperation by NAC-3

Bill Kinney
 

Installing a 24 to 12 volt convertor for this is like using a sledgehammer to kill a fly. It WILL work, but is  an insanely complex and expensive solution to a REALLY simple problem.  I am a very big fan of Victron equipment, but it really is not the right answer for this problem.

A relay is a bit better, but still much more complex a system than needed.

All you need is a resistor.  Measure the resistance of the clutch coil, and install a resistor in series with it that is as close as you can to match it.  If it costs more than $1 you are overpaying.

Ohm wrote the law. Take half the voltage drop across the resistor and half across the coil. 100% reliable. Just chose the right resistance and power rating.

We have been sailing for 5 years with a B&G 24 volt clutch output feeding a raymarine drive just using a 25 Watt/30 Ohm resistor (over kill, but it was so cheap not worth fine tuning) in series to take half the voltage drop.  The clutch is happy, the drive computer is happy.  I am happy because the whole setup cost $0.89 and has no failure modes I can see.

Keep it simple.


Re: Mounting of the 175 amp alternator on a Yanmar

Mark McGovern
 

Eric,

Here's a pic I found of my Leece-Neville alternator mounting feet on my Yanmar 4JH3-HTE:



I can't tell you if it is correct or not but this is the way it was when I bought the boat in 2017.

--
Mark McGovern
SM #440 Cara
Deale, MD USA


Re: 24v Raymarine Linear Drive Clutch Opperation by NAC-3

Clive Chapman
 

I don’t know anything about this specific system, but is the clutch a simple ‘on’ or ‘off’? If so, you could use a simple 24v relay using it to switch 12v to the clutch (assuming you can source as 12v feed of sufficient capacity from near by). Having said that, as Bill says you need good quality kit, so I don’t know if the price difference from the Victron step down, compared with a marinised relay is sufficient to justify.  


Re: 24v Raymarine Linear Drive Clutch Opperation by NAC-3

 

I think your plan is fine, but I would use a Victron 24 to 12 volt converter. Remember your autopilot is only as good as your weakest link. 

Best,

CW Bill Rouse 
Amel Owners Yacht School
+1 832-380-4970 | brouse@...
720 Winnie, Galveston Island, Texas 77550 
www.AmelOwnersYachtSchool.com 
Yacht School Calendar: www.preparetocastoff.blogspot.com/p/calendar.html


   


On Mon, Mar 15, 2021, 3:02 PM Chris Doucette <amaroksailing@...> wrote:
Hello everyone,

I have had to replace my Old Raymarine ST7000 + autopiliot computer.  I have gone with a NAC-3 B&G- as many of my new instraments are B&G and I want the integration.   As such, I have run into a hickup with setting this up with my existing Raymarine Type 2 Long Linear Drive 24v- a solid and well working device I do not want to spend 2K replacing.     I did some research and the NAC-3 will handle this drive unit.  HOWEVER, it appeas that the CLUTCH on this unit is 12v.  In fact, Ray always uses 12v on their clutches irrepective of the drive voltage (24 or 12) and the Ray autopilot units have a 12v /24v selector for the clutch wires.  This is where i got stuck.  The NAC-3 only sends nominal (24v or 12v) voltage to both the drive and the clutch with no way to selecting a differing voltage for the clutch.  The voltage the drive gets, is what the clutch gets.  So to keep my Raymarine drive unit I need to send the cluch 12v.  

My proposed solution.  Being the cluch is 12v and draws a maximum of 3A and I know that the NAC3 can provide that amporage, I plan on involving in-lining a simple 24v to 12 step down converter/regulator in the clutch curcuit a as like this one... https://www.amazon.com/Kohree-Converter-Regulator-Waterproof-Transformer/dp/B0756W6V4F/ref=sr_1_2?dchild=1&keywords=Kohree%2BDC%2FDC&qid=1615838251&sr=8-2&th=1  I do believe this will work..   So my quest to you is this- any major flaws in this or consideration / solutions that I am overlooking?  Thanks!  

Chris
S/V Amarok SM385



24v Raymarine Linear Drive Clutch Opperation by NAC-3

Chris Doucette
 

Hello everyone,

I have had to replace my Old Raymarine ST7000 + autopiliot computer.  I have gone with a NAC-3 B&G- as many of my new instraments are B&G and I want the integration.   As such, I have run into a hickup with setting this up with my existing Raymarine Type 2 Long Linear Drive 24v- a solid and well working device I do not want to spend 2K replacing.     I did some research and the NAC-3 will handle this drive unit.  HOWEVER, it appeas that the CLUTCH on this unit is 12v.  In fact, Ray always uses 12v on their clutches irrepective of the drive voltage (24 or 12) and the Ray autopilot units have a 12v /24v selector for the clutch wires.  This is where i got stuck.  The NAC-3 only sends nominal (24v or 12v) voltage to both the drive and the clutch with no way to selecting a differing voltage for the clutch.  The voltage the drive gets, is what the clutch gets.  So to keep my Raymarine drive unit I need to send the cluch 12v.  

My proposed solution.  Being the cluch is 12v and draws a maximum of 3A and I know that the NAC3 can provide that amporage, I plan on involving in-lining a simple 24v to 12 step down converter/regulator in the clutch curcuit a as like this one... https://www.amazon.com/Kohree-Converter-Regulator-Waterproof-Transformer/dp/B0756W6V4F/ref=sr_1_2?dchild=1&keywords=Kohree%2BDC%2FDC&qid=1615838251&sr=8-2&th=1  I do believe this will work..   So my quest to you is this- any major flaws in this or consideration / solutions that I am overlooking?  Thanks!  

Chris
S/V Amarok SM385



𝗗𝗲𝗳𝗲𝗰𝘁𝗶𝘃𝗲 𝗢𝗻𝗮𝗻 𝗣𝗖𝗕 𝘄𝗮𝗻𝘁𝗲𝗱 𝘁𝗼 𝗮𝘁𝘁𝗲𝗺𝗽𝘁 𝗮 𝗿𝗲𝗽𝗮𝗶𝗿

 

All,

If you have already replaced your defective Onan PCB, I would like to have the defective one. One of our members has the contact information for a guy in Colombia who may be the same guy I met in Colombia. That guy is willing to look at a defective PCB to see if he can repair it. 

Let me know if you can help with this.

Bill
CW Bill Rouse Amel Owners Yacht School
Address: 720 Winnie, Galveston Island, Texas 77550 
View My Training Calendar


Re: Electronic technician to Repair Onan PCBs

 

Stefan,

I contacted GeneratorPanels.com by phone. Unfortunately, they do not repair the "Intelligent PCBs" most of us have. They referred me to FlightSystems.com. I contacted them. They do offer board-level repair, but if the memory chip is damaged they cannot repair the board because the software is proprietary. Therefore, they have deemed the boards we have in most SMs and later models as unrepairable. 

I only had the Onan part 327-1533 which was from a late model SM. I would like to ask them about an Onan PCB prior to about 2000. I think this one may not have software controlling the board. It did not have a diagnostic circuit, but simply a "Fault Light" and reset button. If someone could give me that Onan part number, I will pursue the possibility of repair with Flight Systems.

Bill
CW Bill Rouse Amel Owners Yacht School
Address: 720 Winnie, Galveston Island, Texas 77550 
View My Training Calendar


On Mon, Mar 15, 2021 at 12:31 PM Stefan Jeukendrup <sjeukendrup@...> wrote:
Hi Bill

I have no experience with this company below, a search brought this up:
http://www.generatorpanels.com/onan.asp


If all else fails I too could help out with pcb repair to component level.


Stefan Jeukendrup
sv Malaka Queen
sm2k #348  @ Gulluk Turkey


Re: Electronic technician to Repair Onan PCBs

Stefan Jeukendrup
 

Hi Bill

I have no experience with this company below, a search brought this up:
http://www.generatorpanels.com/onan.asp


If all else fails I too could help out with pcb repair to component level.


Stefan Jeukendrup
sv Malaka Queen
sm2k #348  @ Gulluk Turkey


Re: Electronic technician to Repair Onan PCBs

 

Alex,

CW Bill Rouse Amel Owners Yacht School
Address: 720 Winnie, Galveston Island, Texas 77550 
View My Training Calendar


On Mon, Mar 15, 2021 at 11:14 AM Alex BAIZEAU <alexandre.baizeau@...> wrote:
Hi Bill,
I'm an electronics enthusiast, not sure how familiar you are with reddit but you could post in https://www.reddit.com/r/electronics/ and https://www.reddit.com/r/PCB/ asking for help. I'm sure a member of those subreddits will know someone.

Alex

On Mon, Mar 15, 2021 at 6:45 AM CW Bill Rouse <brouse@...> wrote:
Wanted for all Amel Owners: Board-level PCB electronics technician to diagnose and repair Onan Printed Circuit Board, Control (PCB). As some of you know, the company that designed and manufactured Onan Electronic Control Boards has closed permanently due to COVID. There are many different models of this PCB, sometimes different PCBs within the same model numbers. These PCBs do not last forever. Do you know someone and can share contact information?

image.png
CW Bill Rouse Amel Owners Yacht School
Address: 720 Winnie, Galveston Island, Texas 77550 
View My Training Calendar


Re: Electronic technician to Repair Onan PCBs

Alex BAIZEAU
 

Hi Bill,
I'm an electronics enthusiast, not sure how familiar you are with reddit but you could post in https://www.reddit.com/r/electronics/ and https://www.reddit.com/r/PCB/ asking for help. I'm sure a member of those subreddits will know someone.

Alex

On Mon, Mar 15, 2021 at 6:45 AM CW Bill Rouse <brouse@...> wrote:
Wanted for all Amel Owners: Board-level PCB electronics technician to diagnose and repair Onan Printed Circuit Board, Control (PCB). As some of you know, the company that designed and manufactured Onan Electronic Control Boards has closed permanently due to COVID. There are many different models of this PCB, sometimes different PCBs within the same model numbers. These PCBs do not last forever. Do you know someone and can share contact information?

image.png
CW Bill Rouse Amel Owners Yacht School
Address: 720 Winnie, Galveston Island, Texas 77550 
View My Training Calendar


Re: Electronic technician to Repair Onan PCBs

 

Ryan,

No, none of the above. 

In about 2006, I met a Dutch or German guy in Cartegena, Colombia who repaired things like this without knowing anything about its functionality. Maybe he was one in a million. He repaired a sat phone for me replacing a capacitor and another part in the power supply and a resistor and something else in the transmitter. I did not have an account for the sat phone, so he could not test it with a connection, but said it was transmitting and should connect with an account. He was correct. He had never worked on a sat phone before. He typically worked on old TVs for the locals and for sailors visiting there he repaired radars, GPS, Radios, and other navigation items. He refused to work on computers even though he said he could repair almost any electronic issue. I think I know why he refused to repair computers. It was the dinosaur effect.

Obviously, my search for somebody like this is the last resort.

Bill
CW Bill Rouse Amel Owners Yacht School
Address: 720 Winnie, Galveston Island, Texas 77550 
View My Training Calendar


On Mon, Mar 15, 2021 at 10:04 AM Ryan Meador <ryan.d.meador@...> wrote:
Hi Bill,

This seems like a tall order.  If one is handed a random board without any specifications nor way to power it on, figuring out how it is supposed to work and then figuring out why it isn't is very difficult, bordering on impossible for complex boards.  Do you have any documentation from technicians who have effected the repairs in the past?  Any schematics or part lists?  Are there perhaps one or two common failures that can be quickly checked for?  I have the skills and equipment to rework the boards, and I would consider taking a stab at it if we can find the necessary info.

Thanks,

Ryan and Kelly
SM 233 Iteration
Salem, MA, USA


On Mon, Mar 15, 2021 at 9:45 AM CW Bill Rouse <brouse@...> wrote:
Wanted for all Amel Owners: Board-level PCB electronics technician to diagnose and repair Onan Printed Circuit Board, Control (PCB). As some of you know, the company that designed and manufactured Onan Electronic Control Boards has closed permanently due to COVID. There are many different models of this PCB, sometimes different PCBs within the same model numbers. These PCBs do not last forever. Do you know someone and can share contact information?

image.png
CW Bill Rouse Amel Owners Yacht School
Address: 720 Winnie, Galveston Island, Texas 77550 
View My Training Calendar

Attachments:


Re: Electronic technician to Repair Onan PCBs

Ryan Meador
 

Hi Bill,

This seems like a tall order.  If one is handed a random board without any specifications nor way to power it on, figuring out how it is supposed to work and then figuring out why it isn't is very difficult, bordering on impossible for complex boards.  Do you have any documentation from technicians who have effected the repairs in the past?  Any schematics or part lists?  Are there perhaps one or two common failures that can be quickly checked for?  I have the skills and equipment to rework the boards, and I would consider taking a stab at it if we can find the necessary info.

Thanks,

Ryan and Kelly
SM 233 Iteration
Salem, MA, USA


On Mon, Mar 15, 2021 at 9:45 AM CW Bill Rouse <brouse@...> wrote:
Wanted for all Amel Owners: Board-level PCB electronics technician to diagnose and repair Onan Printed Circuit Board, Control (PCB). As some of you know, the company that designed and manufactured Onan Electronic Control Boards has closed permanently due to COVID. There are many different models of this PCB, sometimes different PCBs within the same model numbers. These PCBs do not last forever. Do you know someone and can share contact information?

image.png
CW Bill Rouse Amel Owners Yacht School
Address: 720 Winnie, Galveston Island, Texas 77550 
View My Training Calendar

Attachments:


Re: Bonding and Solar Power System

 

Adam,

Lightning: I believe anyone who tells you that there is protection from lightning is probably an ex-snake oil salesman. Lightning is never the same, always different. If you believe there is protection from lightning strikes, I suggest that you ask one of the several people that are selling this stuff.

RF: I believe that you should follow the guidance of many electronic device manufacturers which is something like this: 
image.png


CW Bill Rouse Amel Owners Yacht School
Address: 720 Winnie, Galveston Island, Texas 77550 
View My Training Calendar


On Sun, Mar 14, 2021 at 5:03 PM Adam Body <adamgcbody@...> wrote:
Bill, thank you for your valuable and very welcome input. Just a couple of further questions: what is the optimum RF ground circuit for VHF, AIS etc? and, lightning protection: what circuit does/should a lightning strike surge utilise? We are still undertaking repairs since a strike early last year!

 
--
Adam Body "Flora"   SM128 Annee 1994


Electronic technician to Repair Onan PCBs

 

Wanted for all Amel Owners: Board-level PCB electronics technician to diagnose and repair Onan Printed Circuit Board, Control (PCB). As some of you know, the company that designed and manufactured Onan Electronic Control Boards has closed permanently due to COVID. There are many different models of this PCB, sometimes different PCBs within the same model numbers. These PCBs do not last forever. Do you know someone and can share contact information?

image.png
CW Bill Rouse Amel Owners Yacht School
Address: 720 Winnie, Galveston Island, Texas 77550 
View My Training Calendar


Re: Bonding and Solar Power System

Adam Body
 

Bill, thank you for your valuable and very welcome input. Just a couple of further questions: what is the optimum RF ground circuit for VHF, AIS etc? and, lightning protection: what circuit does/should a lightning strike surge utilise? We are still undertaking repairs since a strike early last year!

 
--
Adam Body "Flora"   SM128 Annee 1994


Mounting of the 175 amp alternator on a Yanmar

eric freedman
 

I just finished installing a new Yanmar in Kimberlite.

However I forgot to note how the spacers were for the feet of the big alternator in the photo above.

Would someone please send me a photo from the side of your mounted alternator .

Fair Winds

Eric

Kimberlite Amel Super Maramu #376

 


Re: Looking for a buyers broker.

Courtney Gorman
 

Talk with Joel Potter he’ll know if there are any good boats on the west coast 
Cheers 


On Mar 14, 2021, at 1:23 PM, Alex BAIZEAU <alexandre.baizeau@...> wrote:

Greetings everyone,

My partner Emma and I are looking for a reputable buyer’s broker in Europe, for a Maramu or Santorin.

We got in touch with Michel Charpentier but unfortunately he retired. 

We are both Francophone but live in Squamish British Columbia.

Any suggestions would be appreciated!

Have a great day

Alex 


Looking for a buyers broker.

Alex BAIZEAU
 

Greetings everyone,

My partner Emma and I are looking for a reputable buyer’s broker in Europe, for a Maramu or Santorin.

We got in touch with Michel Charpentier but unfortunately he retired. 

We are both Francophone but live in Squamish British Columbia.

Any suggestions would be appreciated!

Have a great day

Alex 


Re: Main sheet tackle broken catch

 

I am not sure if you are asking me, but my answer is always in those circumstances. 

Best,

CW Bill Rouse 
Amel Owners Yacht School
+1 832-380-4970 | brouse@...
720 Winnie, Galveston Island, Texas 77550 
www.AmelOwnersYachtSchool.com 
Yacht School Calendar: www.preparetocastoff.blogspot.com/p/calendar.html


   

On Sat, Mar 13, 2021, 3:54 PM Alan Leslie <s.v.elyse@...> wrote:
Absolutely correct Bill....but sometimes things happen.....
So, why did they change that block arrangement to the weldment on the 54?
Maybe because those blocks are a real pain to remove, if you ever have to.
I just think the weldment is a much better solution and those blocks disappeared forever when the SM was out of production.
Cheers
Alan
Elyse SM437


Re: Galley sink drain

Alan Leslie
 

Thanks Nick,

Could you post some photos, I don;t quite understand how your system works.

Thanks
Alan
Elyse SM437  

2261 - 2280 of 59218