Hello Miles! We owned a vintage Maramu before our SM and Glen, my husband did a tremendous amount of work in that engine compartment, often emerging with bloody arms and hands. Glen has a lot to

Hi Duane, certainly sounds a bit of a mess. Not sure about faulty methodology by Amel. A few months ago I removed Ocean Pearls freezer so I could do a full clean of the water tank. All the insulation

My Sharki has 2 fans, one upstream and one downstream. It is not only the engine producing heat but also the alternators which are air cooled. Because the batteries are placed in the engine room too

I suspect that the engine's heat exchanger does 99% of the job in cooling the engine and the blower/fan does the rest of the job for the engine. I suspect the blower/fan's primary mission is to

Hello there I was wondering about the fragility of an engine cooling system that relies on an electric blower /fan This I presume is the case for all Vintage Maramus - not sure if it’s also the case

Porter, I didn't do a write up on the motor gearboxes, just the manual gearbox. You can find that here:

I'm looking for suggestions on how to improve the insulation in our aft (and only) freezer. We have had condensation from the freezer running into the deck locker just to stbd of the freezer for some

Ah, now I got it. What you describe is a worm gear, but... You are not referring to the manual gearbox, rather the electrically driven gearboxes. The manual box is the one attached to the foil

Bill, I'm pretty sure of my terminology (per Google anyway). The worm gear I mentioned is "a shaft with a spiral groove meant to engage a gear" turned by the motor. The worm gear turned a large

Hi Porter, The zip tie was likely around the "V" seal that sits on top of all, hopefully keeping stuff out of the rest of the assembly. As they deteriorate they crack open and people often "repair"

Gents. I am enjoying the recent chatter re the main furling motor. I just pulled mine out as it was quite “tired” Dissection revealed cancerous corrosion everywhere. Our is the vertical type

Duane, Having just had my main sail manual furling gearbox apart, I know on mine there is no worm gear, just two spur gears. Which makes sense, because you (usually) can not back-drive a worm

Eric, I have some more information. Calpeda recently added a model that I think you should consider. It is the Calpeda BCM22/1/A-R and it is 50 / 60Hz. It moves 1,700GPH. It is in stock at Caraibes in

Chuck, I did the same rebuild of both gears. The manual furler is also the thrust bearing for the mainsail foil. It rusted to mush and almost seized up. The bearings are off the shelf wheel

This is where it gets confusing. Also, there have been some mind-bending facts presented, but for what it is worth, I have a conclusion that I am satisfied with. Some information you need to

I did a detailed write up on the manual furler overhaul, not the motor gearbox. It's pretty simple. Remove the cover plates, you'll have to pry them off carefully. Inside you'll find a worm gear

Thanks Duane. I now remember you did a detailed write up on this. I will go back and read. Fortunately my manual furler is working or we would be motoring everywhere. Once fixed I'll keep it well

I went through the same process finding an alternative for a leaking Calpedia A/C pump. My conclusion is that for the requirements of running three A/Cs there is no powerful enough pump available with

I was referring to the motorised gearbox on the boom. The bearing on the top is particularly prone to corrosion due to salt water. I agree the manual gearboxes on both the main and the mizzen benefit

The detailed and informative posting about the mizzen furling gearbox indicated that it is designed to be flushed with fresh water raher than oil lubrication. Is this the case for the main furling