Ted,
There are two ss pieces for one motor. They bolt on to the cavitation
plate and from there they "wrap" around the prop to about the prop shaft
elevation. It is necessary to install them temporarily and then identify
how much you will need to bend the piece into a tighter bend. For our
Yamaha 9.9F motors I needed to bend the piece about 1 inch closer to the
prop so that the distance between the prop and the ss piece was uniform. A
large press will do this at a machine shop. In Costa Rica it was $15 for
all four bends.
I believe the performance of the motors is better due to the thrust being
directed more directly aft. This can be viewed in the prop wash. Any
thrust that is not directly aft would be wasted force because energy of the
motor is being used up pushing laterally.
With motors in reverse I believe I notice a greater improvement in
performance. I have not tested any of this with instruments to back my
opinions. That is just too difficult given all the parameters involved such
as fuel consumption, rpm, currents, wave action and wind.
I also believe that there are less cavitations happening with the thrusters
installed - especially in reverse.
All this set aside there is one last factor and that is the phenomenon that
if you polish your car it seems to run better.
Hope this helps,
Gary Oelze
_____
From: scoaa-members-bounces@xxxxxxxxx
[mailto:scoaa-members-bounces@xxxxxxxxx] On Behalf Of Ted Cook
Sent: Saturday, September 19, 2009 17:19
To: scoaa-members@xxxxxxxxx
Subject: Re: [Scoaa-members] controller cables
Gary,
Picture #99 in your 2006 collection shows you under the boat installing what
looks like two pieces of stainless around the upper half of the prop. I had
expected something in a 360 degrees variety. Is this the right photo? And,
you feel that these have been beneficial?
Also, I have enjoyed your Sol Surfin blog. I haven't seen a new entry in a
while. Are you off the boat?
Ted
--- On Sat, 9/19/09, Gary Oelze <gary@xxxxxxxxxxxxx> wrote:
From: Gary Oelze <gary@xxxxxxxxxxxxx>
Subject: Re: [Scoaa-members] controller cables
To: scoaa-members@xxxxxxxxx
Date: Saturday, September 19, 2009, 3:23 PM
It must have been nice in the sling. I did it by myself in my 3mil wetsuit
in 65F water in a harbor in San Juan del Sur , Nicaragua . Depth 5 feet
with a 9 foot deep swell running straight in. Took me most of the day to
complete the job. It gave my legs a good work out using fins to keep my
arms up. Some fond memories of cruising working in beautiful ports.
I may have some pics of the thrusters at our website, gallery of photos,
Travel , Costa Rica 2005 or 2006. I installed them at low tide on a sand
bar in the Puntarenas river. They are easy to install if you drill the
holes in the right spots and you drop pieces overboard.
_____
From: scoaa-members-bounces@xxxxxxxxx
[mailto:scoaa-members-bounces@xxxxxxxxx] On Behalf Of Mickey Mouse
Sent: Friday, September 18, 2009 20:36
To: scoaa-members@xxxxxxxxx
Subject: Re: [Scoaa-members] controller cables
4 info on thrusters: B+B Products, Bert Heidenreich, 714-329-0834
_____
From: Howard Lieberman <ltkhbl@xxxxxxx>
To: scoaa-members@xxxxxxxxx
Sent: Friday, September 18, 2009 3:47:32 PM
Subject: Re: [Scoaa-members] controller cables
Ted.
The controller and cables were changed last week. I had already removed the
old controller. With my skill it only took a few hours??The balance of the
instillation took about three hours because the route was difficult for the
starboard side (a sharp bend in the closet) and some of the nuts are very
small (and one was lost). Most of the job was done in the sling. It would
be very difficult in the water due to the placement of the cables below the
boat. Buying the parts on line saved at least $500. I had the boat out
last weekend and it was an amazing difference. I too would like to see a
picture of the "thrusters".
Howard
From: scoaa-members-bounces@xxxxxxxxx
[mailto:scoaa-members-bounces@xxxxxxxxx] On Behalf Of Ted Cook
Sent: Friday, September 18, 2009 5:18 PM
To: scoaa-members@xxxxxxxxx
Subject: Re: [Scoaa-members] controller cables
Howard,
Have you completed the task of replacing your throttle controls and the
cables? I should be replacing mine in the next month.
Please enlighten me as to what to expect.
Ted
--- On Tue, 8/18/09, Howard Lieberman <ltkhbl@xxxxxxx> wrote:
From: Howard Lieberman <ltkhbl@xxxxxxx>
Subject: Re: [Scoaa-members] controller cables
To: scoaa-members@xxxxxxxxx
Date: Tuesday, August 18, 2009, 6:36 PM
Ted,
Thank you. That does help. Getting the SL3 model Teleflex was a bit of a
struggle, but it is on its way to my service shop. I'll let you know how
the change over goes in about two weeks. I'll be away for that time and the
further away I am from the boat and the mechanics the better for both of us!
Howard
From: scoaa-members-bounces@xxxxxxxxx
[mailto:scoaa-members-bounces@xxxxxxxxx] On Behalf Of Ted Cook
Sent: Tuesday, August 18, 2009 3:46 PM
To: scoaa-members@xxxxxxxxx
Subject: Re: [Scoaa-members] controller cables
Howard,
I will be replacing our throttle controls this Fall.. I had asked Graeme
Nolan, at Seawind, what controls they were now installing on new boats since
the old Teleflex 700TD is no longer available. Here is his response.
"The top mount Teleflex control we now use is model MT-3 available from Bob
Litter Agencies (9648 6606). It uses the same control cables but mounting
cut-out is different to the 700TD. You will need to have an adapter cut-out
made up of wood (Teak from Caporns, Brookvale) or some other material. Kind
Regards, Graeme"
I am hoping that my cables are in good shape. But being 9 years old.....So,
I am not able to help you with your question about cable length, but
fortunately we have two sets. You can pull one and have it in hand to find
the proper replacement. I was told by Teleflex that both the 700TD and the
newer MT-3 accept the same cable end. I may be writing you in a few months
to ask how this project came out if my cables do indeed need replacing.
I have had my control box opened up, but not taken off. It appears pretty
straight forward. I don't know what the mechanic means by glue.
Hope this has helped some.
Ted Cook
Morning Glory
--- On Tue, 8/18/09, Howard Lieberman <ltkhbl@xxxxxxx> wrote:
From: Howard Lieberman <ltkhbl@xxxxxxx>
Subject: [Scoaa-members] controller cables
To: scoaa-members@xxxxxxxxx
Date: Tuesday, August 18, 2009, 10:30 AM
Hello all,
I have a 1000 (#90) and must replace the controller and cables. The
controller is easy, but without pulling out all of the cables the shop
cannot determine which cables are used and at what lengths. I'd rather have
the cables in hand before they begin work. Can any tell me what length and
which model cables are used. The controller is a Teleflex sl3 top mounted
dual regular box. Has anyone had the box and/or cable replaced? Was it a
difficult job? The mechanic is telling me that the box is glued in place
and will be completely lost in removal.
Thanks for the help.
Regards,
Howard Lieberman
SW-1090xl
captainhoward@xxxxxxxxxxx
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