[Alberg30] Engine installation

[R.C. Alley]

Jim: Yes. The little M-18 diesel redlines at 3400; I typically run it at
2800 (more when I'm aground!).  2:1 trans should give--if I have this
right--about 1400 rpm for the prop at my normal cruising speed. What I
thought interesting was Lehman's use of a different prop--for an engine
which I presume runs at about the same speed, on about the same
transmission, but has more horses.

I was down to the yard yesterday, putting the name back on the stern , in a
short-sleeved shirt and shorts.  Got snow yet??

R.
----- Original Message -----
From: <quest433 at msn.com>
To: "R.C. Alley" <ralley at chesapeake.net>; "Alberg 30 public list"
<public-list at alberg30.org>
Sent: Sunday, March 30, 2003 1:07 AM
Subject: Re: [Alberg30] Engine installation


> Rob,
>
> The old atomic 4s ran at about 1500 to 1600 rpms and used a 13X7 with a
direct drive.  I guess your new diesel will run at about 3000 and, with the
2:1 the 13x7 is about right.  Agree?
>
> Jim Mennucci
>
> ----- Original Message -----
> From: R.C. Alley
> Sent: Saturday, March 29, 2003 12:39 AM
> To: James Davis; Alberg 30 public list
> Subject: Re: [Alberg30] Engine installation
>
> Jim: I just got from Michigan propeller the recommendation to use a 13 x 7
> 3-blade with my Universal M-18. About 14 hp with a 2-1 trans (hurth 50).
> Interesting.
>
> Rob
> ----- Original Message -----
> From: "James Davis" <a30240 at earthlink.net>
> To: "Alberg30 General List" <public-list at alberg30.org>
> Sent: Friday, March 28, 2003 8:41 PM
> Subject: [Alberg30] Engine installation
>
>
> > For flex coupling there are also the type that bolt in between your
> existing flanges.  A couple examples are in:
> > Defender p 171 and West p 253.  these may require shortning the shaft,
but
> allow you to use the flanges that came with the engine.   When I repowered
> #240 I used this type coupler and am quite happy with it.  I wish my
current
> boat had something as simple.  On #240 I used a 13x13 three blade prop
with
> the Yanmar 2GM.
> >
> > Jim Davis
> > S/V Isa Lei
> > CT 35
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