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Syten Steering Replacement

KM
K. Myers
Tue, Oct 10, 2006 1:06 PM

Hi All,
Well, the dreaded helm pump shaft seal leak has reared it's ugly
head! The leak is beyond just filling the reservoir occasionally. I
have searched for a used/salvaged helm pump locally and on the
internet to no avail. After contacting Teleflex and am informed that
the Syten system (upper & lower helm) used on my 1982 MT 34 was
obsolete in 1984... no parts available and not repairable (sealed
unit)... 2 years after the boat was built!!

I was told that their Seastar HH5271 pump with backer plate HA5418,
with cylinder HC5314 and mounting block HA5425, is what will replace
my old system. I must replace ALL components and tubing due to the
old Syten being 800 psi and the Seastar being 1000 psi.

The problems with the above goes beyond financial. The shaft on the
Seastars is standard 3/4" tapered and both my beautiful mahogany
wheels are 1"  to 5/8" tapered! I can't find any "shaft adapters" on
the internet, and don't really want to replace them for another $800
or so.

So, here are my questions for the list.

  1. Has anyone had a similar situation and how did you solve it?
  2. Are there any better/more compatible systems I should investigate?
  3. Know anywhere I might be able to find a working (no leak) Syten pump?

I have the time over the winter to do the work, but want to see if
there is an easier, less costly solution to be gleaned from all the
experience from you all on our list.

Regards to all, Keith Myers
MT 34' Knot So Fast
Bohemia River, MD

K. Myers
captkim@rcn.com

Hi All, Well, the dreaded helm pump shaft seal leak has reared it's ugly head! The leak is beyond just filling the reservoir occasionally. I have searched for a used/salvaged helm pump locally and on the internet to no avail. After contacting Teleflex and am informed that the Syten system (upper & lower helm) used on my 1982 MT 34 was obsolete in 1984... no parts available and not repairable (sealed unit)... 2 years after the boat was built!! I was told that their Seastar HH5271 pump with backer plate HA5418, with cylinder HC5314 and mounting block HA5425, is what will replace my old system. I must replace ALL components and tubing due to the old Syten being 800 psi and the Seastar being 1000 psi. The problems with the above goes beyond financial. The shaft on the Seastars is standard 3/4" tapered and both my beautiful mahogany wheels are 1" to 5/8" tapered! I can't find any "shaft adapters" on the internet, and don't really want to replace them for another $800 or so. So, here are my questions for the list. 1. Has anyone had a similar situation and how did you solve it? 2. Are there any better/more compatible systems I should investigate? 3. Know anywhere I might be able to find a working (no leak) Syten pump? I have the time over the winter to do the work, but want to see if there is an easier, less costly solution to be gleaned from all the experience from you all on our list. Regards to all, Keith Myers MT 34' Knot So Fast Bohemia River, MD K. Myers captkim@rcn.com
MM
Mike Maurice
Tue, Oct 10, 2006 2:27 PM

Hi All,
Well, the dreaded helm pump shaft seal leak has reared it's ugly
head! The leak is beyond just filling the reservoir occasionally. I

The problems with the above goes beyond financial. The shaft on the
Seastars is standard 3/4" tapered and both my beautiful mahogany
wheels are 1"  to 5/8" tapered! I can't find any "shaft adapters" on
the internet, and don't really want to replace them for another $800
or so.

So, here are my questions for the list.

  1. Has anyone had a similar situation and how did you solve it?
  2. Are there any better/more compatible systems I should investigate?
  3. Know anywhere I might be able to find a working (no leak) Syten pump?

I have the time over the winter to do the work, but want to see if
there is an easier, less costly solution to be gleaned from all the
experience from you all on our list.

Regards to all, Keith Myers
MT 34' Knot So Fast
Bohemia River, MD


The quality of materials and longevity of components used in the various
steering systems appears to vary all over the place. The Capilano
uniflow valve has been apparently built in plastic, aluminum, brass. In
that order of durability, I would think. I did my own search on the
Syten system name; the results were very discouraging. You have to
assume that the entire system is pretty low quality and nearing it's end
of life.

You might be able to find a machinist who can machine a replacement seal
gizmo. This might be the quickest solution. Another option would be to
find a set of components salvaged off some boat. There are occasional
offerings like this on the internet or in the classifieds of boating rags.

Regards,
Mike


Capt. Mike Maurice
Beaverton Oregon(Near Portland)

Hi All, Well, the dreaded helm pump shaft seal leak has reared it's ugly head! The leak is beyond just filling the reservoir occasionally. I The problems with the above goes beyond financial. The shaft on the Seastars is standard 3/4" tapered and both my beautiful mahogany wheels are 1" to 5/8" tapered! I can't find any "shaft adapters" on the internet, and don't really want to replace them for another $800 or so. So, here are my questions for the list. 1. Has anyone had a similar situation and how did you solve it? 2. Are there any better/more compatible systems I should investigate? 3. Know anywhere I might be able to find a working (no leak) Syten pump? I have the time over the winter to do the work, but want to see if there is an easier, less costly solution to be gleaned from all the experience from you all on our list. Regards to all, Keith Myers MT 34' Knot So Fast Bohemia River, MD __________________________________________________________ The quality of materials and longevity of components used in the various steering systems appears to vary all over the place. The Capilano uniflow valve has been apparently built in plastic, aluminum, brass. In that order of durability, I would think. I did my own search on the Syten system name; the results were very discouraging. You have to assume that the entire system is pretty low quality and nearing it's end of life. You might be able to find a machinist who can machine a replacement seal gizmo. This might be the quickest solution. Another option would be to find a set of components salvaged off some boat. There are occasional offerings like this on the internet or in the classifieds of boating rags. Regards, Mike _____________________________________ Capt. Mike Maurice Beaverton Oregon(Near Portland)
SH
Scott H.E. Welch
Tue, Oct 10, 2006 2:46 PM

"K. Myers" captkim@rcn.com writes:

The problems with the above goes beyond financial. The shaft on the
Seastars is standard 3/4" tapered and both my beautiful mahogany
wheels are 1"  to 5/8" tapered! I can't find any "shaft adapters" on
the internet, and don't really want to replace them for another $800
or so.

When I was rebuilding Island Eagle, I installed a new hydraulic steering
system and a purchased an antique wheel on eBay. Only problem was that the
wheel did not mount up to the helm pump. I went to a local machine shop with
the wheel and pump and for $200 they machined me a custom adaptor hub out of
bronze. It looks and works perfectly.

Scott Welch
Product Manager, FirstClass Group

"If we continue to take an eye for an eye, then surely the whole world will
go blind." - Gandhi

"K. Myers" <captkim@rcn.com> writes: >The problems with the above goes beyond financial. The shaft on the >Seastars is standard 3/4" tapered and both my beautiful mahogany >wheels are 1" to 5/8" tapered! I can't find any "shaft adapters" on >the internet, and don't really want to replace them for another $800 >or so. When I was rebuilding Island Eagle, I installed a new hydraulic steering system and a purchased an antique wheel on eBay. Only problem was that the wheel did not mount up to the helm pump. I went to a local machine shop with the wheel and pump and for $200 they machined me a custom adaptor hub out of bronze. It looks and works perfectly. Scott Welch Product Manager, FirstClass Group "If we continue to take an eye for an eye, then surely the whole world will go blind." - Gandhi
T
trawlerphil
Wed, Oct 11, 2006 1:07 AM

I've got chain drive on my MT-44 and I love it--K.I.S.S.!  Shafts, cogs and
pillow block bearings are all you need, but try Don Miller in NJ. First...

                                      Regards....

Phil Rosch
Old Harbor Consulting
M/V "Curmudgeon" MT44 TC
Currently lying Bond Creek, NC

I've got chain drive on my MT-44 and I love it--K.I.S.S.! Shafts, cogs and pillow block bearings are all you need, but try Don Miller in NJ. First... Regards.... Phil Rosch Old Harbor Consulting M/V "Curmudgeon" MT44 TC Currently lying Bond Creek, NC