Re: [Amel] Maramu repower

Alexandre Uster von Baar

Hello Lior,
I am far from being a Maramu specialist, but I just want to point out what I read in this article:
The standard 63HP Perkins 4-154 is a venerable engine which is still in many. When property maintained, the 4-154 will last virtually forever and 10,000 hours should not necessarily rule one out. The real problem is that replacement parts are getting harder to find.

So it looks to me you should keep your engine for another 2 or 3 more thousand hours...
Sincerely, Alexandre 713-412-6704

--- On Thu, 11/18/10, Lior <lior246@...> wrote:

From: Lior <lior246@...>
Subject: Re: [Amel] Maramu repower
To: "amelyachtowners@..." <amelyachtowners@...>
Date: Thursday, November 18, 2010, 2:31 PM


hi eric
i have on my boat still the perkins 4-154. i have just bought the yacht. the engine should have about 7000 hr. it looks that it works perfect. would you recommend to change the engine? can you send me also the pictures?

sababa, maramu #155

נשלח מה-iPhone שלי

ב-18 בנוב 2010, בשעה 21:17, Eric Lindholm <etlindholm@...> כתב/ה:

I installed the yanmar 73 hp. I was considering the 54 as it did not have a
turbo and there is a generator pack offered for this motor by yanmar. You only
need 28 hp to cruise at 6.5 knots. The generator pack is only offered in Europe,
not the USA, where I am located. It is pretty slick, as it slides in between the
flywheel of the engine and the transmission. It only adds about 3" or so to the
length of the motor assembly. It is can put out up to 5 or 6 kw. I had the 4-154
with a Hurth mechanical trans. The installation was easy. I used the same trans
and adapter plate from the 4-154, and since the rear motor mounts are on the
trans and adapter, it simplified alignment issues. I can send you pictures
directly to your email if you want that shows the installation, motor mounts,
exhaust etc. You can pull the old motor straight out by just removing the engine
hatch, and install the new one the same. The work is really in cleaning up the
engine room itself. I went with the 73 hp as I could not get the gen pack, and
figured extra power could not hurt, especially since I installed a 320 amp
alternator. Love the motor, it is smaller in size, with an increase of
efficiency of about 18 to 20%. I did the entire install myself.

Eric Maramu 105

From: jochenh1109 <jochen@...>
To: amelyachtowners@...
Sent: Thu, November 18, 2010 11:07:10 AM
Subject: [Amel] Maramu repower

Hello dear forum members,

Our Blue Song finally needs a new Diesel, and we'll have to have it installed
down here in Grenada.

Who of the fellow Maramu owners have gone through that exercise, what new engine
did you install (or have installed) and why did you choose that specific motor,
how painful was the exercise, how happy are you with your new engine ?

We are presently considering a Cummins (but that is a 3.3 ltr, 65 HP engine -
fuel consumption....) or a 52 HP Yanmar (is that enough HP, it is a bit less
than our old Perkins 4154).

ANY useful comment/suggestion/hint will be appreciated, there is so much you can
do wrong as I have read in various cruisers forums

Thanks in advance and fair winds

s/v Blue Song
Maramu #143

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