Chris- #596 4 sheave head- Base of mast to upper edge
of tape line-94.5".Large 2 sheave mast is 3" longer
and has a different measurement. Hope this may help
Bob-
--- CHRISTIAN BECKER <uni@...> wrote:
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I understand your problem.
I suggest something to you and others.
Get the shaft made or bought. In most cases, they
will cut it to a length and mill the key way. I
suggest that when you get to a point that you feel
good about the length overall, have then make the
shaft somewhat longer to make sure it will fit to
your needs, but have the keyway milled (pay for the
extra machine time which will be very little) and
take the shaft and put it into the boat. See how
things look and feel.
If the shaft is too long, then all you have to do is
to cut it at the keyway since you will have an extra
long keyway where the coupling is located or
attached. Make sure that you check the diameters of
the prop where the taper is. Measure the length of
the keyway. When you order the new shaft, ask if the
dimensions you are providing are standard or normal.
I have seen three different diameter shafts on a
Tartan 27.
A adapter can be purchased to adapt a small shaft to
a larger bore prop. The plastic molding has a dual
taper to compensate. In doing so, the prop will be
where is should be on the shaft. There is a place
called Freeport Marine in Freeport New York that
knows all about these problems. I have used them
many times.
I would want to make sure of the dimensions of the
whole assembly before I would order a shaft.
Depending on need, you might need a new prop or this
might be the time to change to a two blade plastic.
These appear to be great and can be painted with
min. primer.
I would like to know what is the dimension of your
lower black band, measuring to the top of the band,
from the bottom of the mast? That is where one
starts in establishing the placement of the bands on
the mast and on the outboard end of the boom.
Good luck.
Chris Becker
Tartan 27, Hull 511
Larchmont, NY
----- Original Message -----
From: Bill Davis
To: T27Owners@...
Sent: Monday, August 18, 2008 4:15 PM
Subject: [T27Owners] Prop Shaft Length
Guys,
About two years ago I inqured about the
lenght of the prop shaft as the boat I had just
acquired had been cut out and I received several
answers with widely varing lengths. Fortunately I
wasn't ready to do the replacement then but I am
now.
I have a replacement shaft which is too
long. Scarlet is hull #79 built in 1964 and still
has the original Atomic 4. I've got a broom handle
in her right now ready to measure for an exact
lenght assuming the prop goes in the middle of the
opening, which is what I plan to do.
I'll again ask how long the prop shaft
should be? We can see how close your answers are.
Billy Ray Davis Jr.
Scarlet #79
