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“Lead is Dead” (see article). Our owners should not be constrained from switching to LiFePO4 when their Lead Acid batteries expire. Such LiFePO4 batteries are clearly more economical than Lead Acid over the life of a boat.
https://marinehowto.com/drop-in-lifepo4 ... -consumer/

The proposed rule changes take in the following considerations:
• The work of the measurer is minimized as described in the document. Optionally it can be reduced further.
• The class is promoting that owners safely upgrade their J/109’s in an ABYC E-13 compliant manner plus additional precautions, rather than performing a dumb LiFePO4 drop-in style upgrade.
• Any potential weight benefit is offset by a requirement for (2) batteries (Both LiFePO4, or a LiFePO4 plus Lead Acid) and that the weight of other components required for a safe LiFePO4 upgrade (and) that the Lithium Ahr capacity is off-set by a weight multiplier of 0.50, e.g. a 200 Ahr LiFePO4 counts as 100 Ahr, will eliminate all weight advantage.

Best regards,
Dan Corcoran

----------------------------------

J/109 Proposed Class Rule Change
By Dan Corcoran, September 8, 2024

Proposed Change to Measurement Checklist
Lead Acid Battery Standard Option (unchanged)
* 2 x lead technology batteries minimum combined capacity 150Ah
LiFePO4 Battery Option (added)
* 2 batteries minimum combined capacity of (0.50 x LiFePO4 capacity) + Lead Acid capacity, of 150Ah.
* Documentation of Class Compliant LiFePO4 Installation. Documented upgrade checklist on boat ready for class inspection, of safe LiFePO4 upgrade plus J/109 Class requirement that boats can quickly recovery from a total failure of a single battery/Battery BMS.
* Documentation at the electrical battery switch that clearly explains how to configure the J/109 to bypass a failed battery.
* 20% of boats to be chosen randomly, need to demonstrate for the measurer the 109 crew can start the engine on each battery without the other, including a demonstration on the battery monitor that the alternator output is reaching the good battery and house loads.

Documentation of J/109 LiFePO4 Installation
A compliant installation of LiFePO4 Batteries must have all the capabilities listed below as attested to by a competent installer and the boat owner, available to show the measurer at all national events.
The simple replacement of Lead Acid batteries with “Drop In” LiFePo4 batteries is expressly disallowed without the additional upgrades listed below and/or in the ABYC E-13 standard.
The intent of the following requirements is to reduce the opportunity of a J/109 with LiFePO4 having a weight advantage over those with Lead Acid AND to allocate the saved weight towards additional electrical system that will ensure every LiFePO4 equipped J/109 has an additional capability to operate fully and safely in the event of any one battery BMS failing, and to reduce the risk that an electrical storm at the time of a race will completely a J/109, as theoretically could happen in response to an electrical storm EMP pulse during a race or delivery to race venue.

[ ] An installer of sufficient knowledge and competency in boat electrical systems has made an ABYC E-13 compliant upgrade. List added components here: _______________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________

[ ] Describe here how the J/109 can operate from Battery 1 (start engine, receive alternator output, supply house loads), with all other batteries disabled. Battery 1 is labeled ______________ Battery 1 manufacturer & model # _____________________ Battery 1 chemistry is _____________
__________________________________________________________________________________________________________________________________________________________________________

[ ] In the event Battery 1 failed, or is about to fail, the user receives the following ABYC E-13 alarm as follows : ______________________________________________________________________. The user can silence the alarm by __________________________________________________________. In the event the BMS for this battery has failed, the user will be alerted the battery and/or BMS failed as follows (e.g. the user won’t be caught unaware): _____________________________________.

[ ] Describe here how the J/109 can operate from Battery 2 (start engine, receive alternator output, supply house loads), with all other batteries disabled. Battery 2 is labeled ______________ Battery 2 manufacturer & model # _____________________ Battery 2 chemistry is _____________
__________________________________________________________________________________________________________________________________________________________________________

[ ] In the event Battery 2 failed, or is about to fail, the user receives the following ABYC E-13 alarm as follows : ______________________________________________________________________. The user can silence the alarm by __________________________________________________________. In the event the BMS for this battery has failed, the user will be alerted the battery and/or BMS failed as follows (e.g. the user won’t be caught unaware): _____________________________________.
Such upgrade to achieve the above included (all must be included to meet class rule):
[ ] If no Lead Acid Batteries, each of Two LiFePO4 batteries must be individually capable of starting engine while supporting house loads (or) If One battery is Lead Acid, One LifePO4 battery must be capable of starting engine while simultaneously supporting house loads (or) Two Lead Acid batteries are separately available for starting engine.
[ ] An additional 2/0 or larger electrical cable has been run from battery switches to the engine compartment to isolate the engine starter from the alternator output. The engine starter can select which of two or more batteries to start from.
[ ] Document the engine has been successfully started 5x from battery 1, after first being discharged 50% (if LiFePO4 battery) or 10% (if Lead Acid battery)
[ ] Document the engine has been successfully started 5x from battery 2, after first being discharged 50% or 10% (if Lead Acid battery)
[ ] Either, all batteries are of the same chemistry or additional components were used to insure the correct multi-state charging of each battery chemistry is successful. Those components included: _____________________________________________________________________________
[ ] The battery switch used for selecting which battery starts the engine, MUST NOT HAVE A BOTH OPTION. It such a “both” battery combiner capability is desired, there must exist a separate dedicated combiner switch sufficiently wired and fused to combine a discharged battery to a charged battery safely.
[ ] In the event a battery fails, alternator output can be directed either manually or automatically to a good battery. Describe here how that occurs ________________________________________________
[ ] The alternator must be protected from a sudden loss of one, or all batteries, with an alternator protector. Describe alternator protector product, model number, and location here ___________________________________________________________________
Attested by:
Boat Owner ______________ Signature _____________________ Date: __________________

Installer Name ______________ Signature _____________________ Date: __________________]]> no_email@example.com (Dan Corcoran) http://j109.org/forum/viewtopic.php?f=7&t=1627&p=2616#p2616 Mon, 09 Sep 2024 09:36:22 -0400 http://j109.org/forum/viewtopic.php?f=7&t=1627&p=2616#p2616 http://j109.org/forum/viewtopic.php?f=7&t=1654&p=2617#p2617

Superkote 75 - Contender Sailcloth

Airex 650 - Bainbridge International

Aerotech N 40 (Nylon) - North Sails

Excerpt from Class Rules:
5.6 The class asymmetric spinnaker shall be manufactured from woven nylon with a minimum nominal weight of not less than 40grams per square meter. The area of the sail (“SA”) shall not exceed 108 square meters, based on the formula: SA=(luff length + leech length) *.25 foot length + (half width -.5 foot length) *(leech length + luff length)/3.
Adjustable leech, luff, and foot lines shall be fitted to the Asymmetric spinnaker.]]> no_email@example.com (Vento Solare) http://j109.org/forum/viewtopic.php?f=7&t=1654&p=2617#p2617 Mon, 09 Sep 2024 17:48:27 -0400 http://j109.org/forum/viewtopic.php?f=7&t=1654&p=2617#p2617 http://j109.org/forum/viewtopic.php?f=4&t=1649&p=2605#p2605 no_email@example.com (7200) http://j109.org/forum/viewtopic.php?f=4&t=1649&p=2605#p2605 Tue, 06 Aug 2024 10:55:49 -0400 http://j109.org/forum/viewtopic.php?f=4&t=1649&p=2605#p2605 http://j109.org/forum/viewtopic.php?f=4&t=1150&p=2606#p2606 no_email@example.com (Dan Corcoran) http://j109.org/forum/viewtopic.php?f=4&t=1150&p=2606#p2606 Sun, 11 Aug 2024 21:31:18 -0400 http://j109.org/forum/viewtopic.php?f=4&t=1150&p=2606#p2606 http://j109.org/forum/viewtopic.php?f=4&t=1652&p=2608#p2608 Yanmar 3YM30 parts catalog with the raw water pump diagram Figure 13. You want to replace the o-ring (item 15) and rip seal (item 19). Make sure the shaft is not scored. If it is, you need to replace it and any associate parts along the access that the shaft might have scored.]]> no_email@example.com (Vento Solare) http://j109.org/forum/viewtopic.php?f=4&t=1652&p=2608#p2608 Mon, 12 Aug 2024 06:49:06 -0400 http://j109.org/forum/viewtopic.php?f=4&t=1652&p=2608#p2608 http://j109.org/forum/viewtopic.php?f=4&t=1655&p=2620#p2620 https://minicraft.com/store/Piranha-Gel-Coat-p138783796]]> no_email@example.com (Vento Solare) http://j109.org/forum/viewtopic.php?f=4&t=1655&p=2620#p2620 Mon, 30 Sep 2024 18:54:41 -0400 http://j109.org/forum/viewtopic.php?f=4&t=1655&p=2620#p2620 http://j109.org/forum/viewtopic.php?f=4&t=1660&p=2632#p2632
Eliot
#289
Hafa Adai]]> no_email@example.com (eshanabrook) http://j109.org/forum/viewtopic.php?f=4&t=1660&p=2632#p2632 Tue, 29 Oct 2024 10:10:33 -0400 http://j109.org/forum/viewtopic.php?f=4&t=1660&p=2632#p2632 http://j109.org/forum/viewtopic.php?f=4&t=1565&p=2635#p2635 no_email@example.com (MochiFanta) http://j109.org/forum/viewtopic.php?f=4&t=1565&p=2635#p2635 Mon, 11 Nov 2024 17:46:49 -0500 http://j109.org/forum/viewtopic.php?f=4&t=1565&p=2635#p2635 http://j109.org/forum/viewtopic.php?f=4&t=1659&p=2637#p2637 There were not many skills needed. Completing a general marine diesel class is a reasonable prerequisite so you know your engine before getting started. Lots of caution is needed. Although the acid did much of the work, it took me 16 hours to complete it: 3 hours to disassemble, 8 hours at home, and 5 hours to assemble. Doing this the first time, don't expect to complete the work in under 4 days.
- Taking pictures before getting started was insufficient to capture all the electrical connections to the alternator, take the effort to write them out also.
- Purchase all parts in advance, I went to toadsmarine for parts. Stock is awful, had to wait 10 days for some parts (October 2024)
- Plan to remove the entire heat exchanger assembly from the engine when purchasing parts like gaskets attaching to the engine and exhaust.
- There is a video of the heat exchanger being cleaned by a J109 owner, watch it. Very good. Note however, it is a different engine. The heat exchanger is now on the port side, and no longer divided into two chambers at each end cap, so there is no bar gasket, rather they are simply round x 4 of them.

- Expect to use 3 gallons of CLR. Expect to spend more time on this step as you discover more parts you want to remove rust from
- Don't get carried away removing rust. The bolts for example lose their gold coating even after a short time
- 2 hours is good starting point for the first immersion in CLR for most parts, then add time as necessary.
- When at home and removing the six bolts at each end, just let it sit a couple of days, it becomes easier to take apart. Also be familiar with which way the heat exchange slides to understand which direction you want to use force.
- Like in some of the vidoes, give the acid wash a head start, by first cleaning each of the individual tubes with a rifle cleaning kit. This is what I used:


- A dremel tool with 515 bits (180 and 280 grit) was useful too.
- Putting it back together is a two-person job. Attach the gasket between the engine and assembly with two long strips of electrical tape that you can pull completely out after you get a couple of bolts in. A person in the cabin supporting the weight from underneath leaves the person above to drop it in, line it up, and push the first bolts in.]]> no_email@example.com (Dan Corcoran) http://j109.org/forum/viewtopic.php?f=4&t=1659&p=2637#p2637 Mon, 18 Nov 2024 10:08:17 -0500 http://j109.org/forum/viewtopic.php?f=4&t=1659&p=2637#p2637 http://j109.org/forum/viewtopic.php?f=4&t=1663&p=2641#p2641 https://www.greatlakesmarineservices.com/
Mike Burt

They have trucked quite a few J/109's around the country and have a special trailer that keeps the boat low, I didnt have to remove anything, but I did need to loosen the guard on the helm station and tilt it forward to lower its height. Sorry, I also removed the wheel. Stantions, winches all stayed on.

These guys trucked a few J/109's in 2024 alone. Good Luck, I was 100% happy with them.]]> no_email@example.com (Will1552) http://j109.org/forum/viewtopic.php?f=4&t=1663&p=2641#p2641 Sun, 22 Dec 2024 09:05:11 -0500 http://j109.org/forum/viewtopic.php?f=4&t=1663&p=2641#p2641 http://j109.org/forum/viewtopic.php?f=4&t=1665&p=2654#p2654 MC-618 on J/122 Alliance when we installed a high capacity alternator and had to run a separate wire. This wasn't a Yanmar engine or panel, but the basic regulator and alternator connections follow the same philosophy.

See the 3YM service manual page 184. The orange wire at the instrument panel is the tach lead. If you look on the diagram, that goes through a Molex connector located as a flying yellow lead on the standard Hitachi alternator. Most of the high output alternators such as yours have a screw terminal with a hex nut. Look at the Alternator spec sheet link I put in the previous post and you'll see terminal 2 is the stator/tach output.]]> no_email@example.com (Vento Solare) http://j109.org/forum/viewtopic.php?f=4&t=1665&p=2654#p2654 Thu, 02 Jan 2025 10:57:41 -0500 http://j109.org/forum/viewtopic.php?f=4&t=1665&p=2654#p2654 http://j109.org/forum/viewtopic.php?f=4&t=1664&p=2658#p2658 no_email@example.com (Will1552) http://j109.org/forum/viewtopic.php?f=4&t=1664&p=2658#p2658 Fri, 03 Jan 2025 21:34:39 -0500 http://j109.org/forum/viewtopic.php?f=4&t=1664&p=2658#p2658 http://j109.org/forum/viewtopic.php?f=4&t=1666&p=2659#p2659 no_email@example.com (Phoenix251) http://j109.org/forum/viewtopic.php?f=4&t=1666&p=2659#p2659 Mon, 06 Jan 2025 14:06:44 -0500 http://j109.org/forum/viewtopic.php?f=4&t=1666&p=2659#p2659 http://j109.org/forum/viewtopic.php?f=5&t=1653&p=2615#p2615 no_email@example.com (NED1671RIGGING) http://j109.org/forum/viewtopic.php?f=5&t=1653&p=2615#p2615 Wed, 04 Sep 2024 12:44:58 -0400 http://j109.org/forum/viewtopic.php?f=5&t=1653&p=2615#p2615 http://j109.org/forum/viewtopic.php?f=5&t=1166&p=2619#p2619 no_email@example.com (dbrousseau) http://j109.org/forum/viewtopic.php?f=5&t=1166&p=2619#p2619 Mon, 30 Sep 2024 17:36:10 -0400 http://j109.org/forum/viewtopic.php?f=5&t=1166&p=2619#p2619 http://j109.org/forum/viewtopic.php?f=13&t=1646&p=2623#p2623
Both standard 2-reef racing mains, with plastic slugs (don’t know what an Antal looks like). Fine delivery mains or racing club races to save the new main.
1. North 3DL. I can send the tags info - not sure when it was made.
2. Quantum Kevlar. It says 2014 on it.

I have some pics. Give me a call if interested 415-819-7394

Dan Brousseau]]> no_email@example.com (dbrousseau) http://j109.org/forum/viewtopic.php?f=13&t=1646&p=2623#p2623 Sun, 06 Oct 2024 19:21:25 -0400 http://j109.org/forum/viewtopic.php?f=13&t=1646&p=2623#p2623 http://j109.org/forum/viewtopic.php?f=13&t=1657&p=2626#p2626 no_email@example.com (huayra) http://j109.org/forum/viewtopic.php?f=13&t=1657&p=2626#p2626 Tue, 22 Oct 2024 13:01:52 -0400 http://j109.org/forum/viewtopic.php?f=13&t=1657&p=2626#p2626 http://j109.org/forum/viewtopic.php?f=13&t=1661&p=2636#p2636 no_email@example.com (Dan Corcoran) http://j109.org/forum/viewtopic.php?f=13&t=1661&p=2636#p2636 Mon, 11 Nov 2024 23:44:36 -0500 http://j109.org/forum/viewtopic.php?f=13&t=1661&p=2636#p2636 http://j109.org/forum/viewtopic.php?f=13&t=1667&p=2660#p2660
Looking for a class A-3 kite in club racing or better condition. I'm located in SF Bay Area.

Thanks in advance,

jarens07@gmail.com]]> no_email@example.com (johnarens) http://j109.org/forum/viewtopic.php?f=13&t=1667&p=2660#p2660 Tue, 07 Jan 2025 14:00:16 -0500 http://j109.org/forum/viewtopic.php?f=13&t=1667&p=2660#p2660 http://j109.org/forum/viewtopic.php?f=14&t=1645&p=2609#p2609 caryjames@gmail.com

-Cary]]> no_email@example.com (caryjames) http://j109.org/forum/viewtopic.php?f=14&t=1645&p=2609#p2609 Sat, 17 Aug 2024 11:38:25 -0400 http://j109.org/forum/viewtopic.php?f=14&t=1645&p=2609#p2609 http://j109.org/forum/viewtopic.php?f=14&t=1662&p=2638#p2638
Thanks,
Volker Petersen
269 Zigzag]]> no_email@example.com (volkerpetersen) http://j109.org/forum/viewtopic.php?f=14&t=1662&p=2638#p2638 Sun, 24 Nov 2024 09:59:03 -0500 http://j109.org/forum/viewtopic.php?f=14&t=1662&p=2638#p2638