|
Re: [Amel Yacht Owners] Ebersprecher. Heater
eric freedman
|
|
|
|
main outhaul drive shaft removal
Many of us have been challenged with the removal of the drive shaft for the mainsail outhaul drive shaft. I have broken the top of the gear box with too much pounding from below. Last fall it took an hydraulic jack with cribbing down to the deck to press the shaft out. When reinstalled a liberal amount of grease was used. That was less than a year ago. Yet it was still incredibly stubborn to remove less than a year later. Simple prying or pounding did not break it loose. The ultimate combination that worked was to drive shims between the black plastic adapter and the boom to provide solid support to the plastic and not stress the plastic or bolts (see picture). Screwdrivers were driven on either side of the shaft just under its cap to tension it up. Pounding up from below broke it loose. There was no obvious excessive rust or corrosion to explain the stubbornness. After Polishing the shaft with sandpaper and filing and sanding the inside of the gearbox spindle to remove any residual rust, Molykote was liberally applied and the shaft reinstalled. We’ll see in 6 months if the shaft can be removed more readily.
Mike Ondra Aletes SM#240 Rock Hall, MD
|
|
|
|
Re: Battery Compartment Explosion
Ralph Caruso
I used to work in a field where water was disassociated into hydrogen and oxygen, and I can tell you that any accumulation of this mixture (called a "stoichiometric mixture) can explode at the very slightest application of energy. We had several experiences where this mix accumulated inside steel pipes, with no ignition source available whatsoever, and detonations occurred. The ONLY way to avoid a detonation is to vent the space, either by forced ventilation or with natural ventilation pathways that continuously slope upward, with NO voids that could accumulate the gas. I remember that the amount of energy that was required to cause a detonation was described as "the amount of energy that a mosquito uses to do a pushup" - somewhere around 0.5 erg, if I remember correctly - so all sorts of things can set it off. I am not an Amel owner - I lurk here for good ideas that I can use on my Jeanneau - but I have 4 golf cart batteries, one engine starting battery, and one genset starting battery under the berth in my aft stateroom, and I have installed those catalytic combiner battery caps on the golf cart batteries, while the starting batteries are "sealed" lead acid. I also have a small fan that exhausts the battery compartment into the boat whenever it senses voltage on the batteries above 13v - ie, charging is occurring. I would prefer to vent overboard, but can't figure out a good piping solution that would also keep the water out while ensuring that it NEVER slopes downward. I figure that the risk of water coming into the boat from a bad vent design would be higher than the risk of a hydrogen accumulation inside the boat - it is not very airtight, with the main hatch almost directly above the batteries. Interesting to hear about hydrogen explosions in boats... Ralph Caruso s/v Petillant Jeanneau SO43DS
|
|
|
|
Re: [Amel Yacht Owners] Steering Rack Adjustment
Stephen Davis
Hi Eric, Thanks for checking. Interesting about the nylocks. It must be one of the many changes Amel made over time, as I have what appear original cap nuts with lock washers on the front side. I think I’ll add a bit of locktite as well. Aloha, Steve
On Aug 12, 2018, at 05:49, eric kimberlite@... [amelyachtowners] <amelyachtowners@...> wrote:
|
|
|
|
Re: [Amel Yacht Owners] Ebersprecher. Heater
Arthur Sundqvist
Thank you. Eric!
toggle quoted messageShow quoted text
I see forward to the info and pictures from you. I also think is best that s PRO installs it. SM435, Vista Skickat från min iPhone
|
|
|
|
Re: [Amel Yacht Owners] Steering Rack Adjustment
eric freedman
|
|
|
|
Re: [Amel Yacht Owners] Ebersprecher. Heater
eric freedman
|
|
|
|
Re: [Amel Yacht Owners] New ultrasonic DST sesnor from AIRMAR
Alan, And it's NMEA 2000, so not a plug and play replacement for failed B& G sonic speed. Best, CW Bill Rouse Admiral, Texas Navy Commander Emeritus Amel School www.amelschool.com 720 Winnie St Galveston Island, TX 77550 +1(832) 380-4970
|
|
|
|
Re: [Amel Yacht Owners] Re: Ebersprecher. Heater
Arthur Sundqvist
I have 3 different ac and heater in front aft and saloon.
toggle quoted messageShow quoted text
Skickat från min iPhone
|
|
|
|
Re: [Amel Yacht Owners] Ebersprecher. Heater
Arthur Sundqvist
Yes I have...
toggle quoted messageShow quoted text
Skickat från min iPhone
|
|
|
|
Steering Rack Adjustment
Stephen Davis
We are just finishing up with final adjustments after replacing our steering racks, pinion, and steering cables, and have a question about how tight the racks should be. The racks are held together by 2 threaded studs with 2 cap nuts facing the galley. Should these 2 cap nuts be tightened enough so the racks do not move at all, or be a bit looser which allows the racks to scissor back an forth a little? I can't find anything written about this, and I'd appreciate it if some of you could look at your steering racks and let me know if they are a little loose, or if you are unable to move them. My vote is for very tight with no movement, but would like to know how they are adjusted on some other boats. Thanks in advance for your help. Steve Davis Aloha SM 72 Ko Olina, Hawaii
|
|
|
|
Re: [Amel Yacht Owners] Ebersprecher. Heater
eric freedman
|
|
|
|
Re: Battery Compartment Explosion
Mark Isaac
Thanks to the person who linked my post to the appropriate conversation. Yes, they are marine deep cycle flooded lead acid batteries. Bill, thanks for what I am taking home from this: no need to look further for problems with the cells or system and keep the terminals tight. Mark Isaac SM391, Lulu South Freeport, Maine
|
|
|
|
Re: Generator exhaust
MIchael,
Are you installing a name brand generator (Onan, NorthernLights,etc) or are you putting together components yourself? If name brand the installation instructions should certainly cover this clearly and it depends on the genset size. For example, the older NL 6/4.8kw (which has a Kubota 10hp engine) calls for 40mm throughout and the exhaust elbow is 40mm (the new 6/5kw model has 38mm). Their 12/10kw with a 20hp engine has a 51mm elbow. In general, though, you don't want to introduce a reducer. If the exhaust elbow is 50mm, then carry that through, unless the manufacturer specifically calls for the reducer (to increase exhaust pressure - unlikely). Craig, SN68 ---In amelyachtowners@..., <mfw642000@...> wrote : Hi, I am installing a new genset into a super maramu 2000. The engine is a kubota with a 50mm hose going to the vetas water lock. On the outlet of the water lock the hose reduces to 40mm. This is how the original is installed. It has a reducer 50 to 40mm glued into the water lock. Can anyone help with the reasons why the hose is reduced in diameter? The generator supplier advised to have a 50mm hose going on the water lock outlet. Thanks
|
|
|
|
Re: [Amel Yacht Owners] New ultrasonic DST sesnor from AIRMAR
SV Perigee
Hi Bill, [sorry, the earlier message 'got away' from me before I could properly complete.] When our Sonic Speed failed, we regained Boat Speed by replacing the preexisting depth-only sensor in the underfloor compartment outside the forward head with a paddle-wheel DST800. The DST800 uses a 51mm (2") form factor, and was a drop-in replacement. The UDST800 is also a 51mm (2") fitting. Noting however that the UDST800 processor requires a separate power supply, and the specs sheet says that this is 12VDC. Cheers, David Perigee, SM#396 Spanish Water, Curaçao
|
|
|
|
Re: [Amel Yacht Owners] New ultrasonic DST sesnor from AIRMAR
Alan, Interesting. I cannot remember...is the SM Amel-installed B&G Depth Transducer 2" as this combo is also 2"? If so, this is an excellent option when the sonic speed sensors fail. Best, CW Bill Rouse Admiral, Texas Navy Commander Emeritus Amel School http://www.amelschool.com 720 Winnie St Galveston Island, TX 77550 +1(832) 380-4970 Any opinions and conclusions expressed in this message are solely those of the author and should not be construed as representing the opinion of an expert. Manufacturers' and Expert's precautions must be considered when dealing with mechanical and/or electrical systems to ensure that you are NOT harmed, and/or the device and/or system is NOT ruined. If in doubt, do not touch any mechanical and/or electrical device or system referred to above.
|
|
|
|
Re: Ebersprecher. Heater
If I were you I would select a Webasto diesel heater. They are virually the same devices as the Eberspächer but from what I recall the electronics on the Webasto are at bit better. Also they have a more spread dealer network. On our boat Amel installed a Webasto Air-Top 5.5 kW heater. These things are a pig to install after the boat has been build as you need a lot of cables, hoses and (isolated) ducts. So careful planning is required. I would ask a fellow Super Maramu with a factory installed heater about the exact routing of the ducts to avoid inventing the wheel twice.
Regarfs, Arno Luna, A54-121
|
|
|
|
Re: [Amel Yacht Owners] Re: Battery Compartment Explosion
Hi Alan,
|
|
|
|
Re: Battery Compartment Explosion
greatketch@...
Mark,
Sorry to hear about your excitement, but glad the only damage was to the boat. I assume you have standard flooded lead acid batteries--if not--then things are strange... Just from normal charging, hydrogen is being generated by the batteries. It would be a bad assumption that a passive vent is sufficient to ALWAYS keep the battery box hydrogen concentration below the level that will ignite--given a spark. The problem is that hydrogen has such a very low flammable limit in air, between 2% and 6% depending on how you define it. Certainly local concentrations of H2 in the box could get that high in normal operation. And a loose battery cable certainly can create the needed spark... Moral of the story... battery cables need to be kept tight, and any kind of equipment added inside the battery box need to be ignition protected--or better yet mounted outside the box. Bill Kinney SM160, Harmonie Annapolis, MD, USA
|
|
|
|
New ultrasonic DST sesnor from AIRMAR
SV Perigee
UDST800 Ultrasonic Smart Sensor http://www.airmar.com/productdescription.html?id=208 UDST800 Ultrasonic Smart™ SensorUDST800 Ultrasonic Smart™ Sensor
|
|
|
