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11-05-2018, 11:15
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#1
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Registered User
Join Date: Jan 2009
Location: Tampa, FL
Boat: Yankee 30'
Posts: 211
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can you identify this steering cylinder?
Please help. Some years ago I ordered online and installed all the components for the autopilot on a 40' yawl including the ram / cylinder. The Hydraulic cylinder developed a slow leak at both ends. The system has seen very little use, so I hope replacing the seals would do the job.
It's a brass cylinder 2"OD, 12" stroke with 3/4" rod dia. Problem is, the manufacturer did not feel confident enough to put their name on it and we can't find any records or brochures on it. So, if someone recognizes the make/model or where to find the replacement parts or recommend facility (preferably central Florida) that can rebuild it, please let me know. Stan
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11-05-2018, 11:30
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#2
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Registered User
Join Date: Nov 2013
Location: Slidell, La.
Boat: Morgan Classic 33
Posts: 2,845
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Re: can you identify this steering cylinder?
Can't recommend any since I'm not in Tampa, but google 'hydraulic cylinder repair' and you'll find plenty. Go to one who services ag or construction equipment for the best price...
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11-05-2018, 12:38
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#3
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Registered User
Join Date: Dec 2010
Location: W Carib
Boat: Wildcat 35, Hobie 33
Posts: 13,480
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Re: can you identify this steering cylinder?
Looks similar to a SeaStar...except for that end cap held by screws.
Small cylinders like that are not hard to rebuild. If there is no scoring or excessive wear on the shaft/cylinder then its just a matter of replacing seals, which are typically just o-rings.
I would download the service manual for several small steering rams and see what looks most similar.
For SeaStars the only uncommon tool you need is an appropriately sized pin wrench to remove the end plugs.
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11-05-2018, 13:38
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#4
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Registered User
Join Date: Nov 2014
Posts: 1,613
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Re: can you identify this steering cylinder?
Here's a photo of a steering cylinder set up as a linear drive for an autopilot, as well as the repair components for it. This is a Capilano brand cylinder, which is ( or was) a commercial division of Sea Star.
As the other posters mention, just take your cylinder to a local hydraulic supply house and they will be able to supply everything you need for repair. As seen in the foto, this cylinder uses two cup type seals back to back on the piston, two lip seals, one on each end of the cylinder where the piston rod exits the cylinder body, and two O rings where the center tube fits into the cast bronze end pieces.
All of these were less than $20.00...... Mind as well get a few spares at the same time...
DougR
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11-05-2018, 14:31
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#5
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Registered User
Join Date: Jun 2016
Location: Brisbane Australia
Boat: Schionning Waterline 1480
Posts: 1,987
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Re: can you identify this steering cylinder?
Agreed.
Some parts look similar to my Seastar cylinder except my cylinders are aluminium.
My end caps came off with a PITA system of rotating the end while pulling out a soft metal strip. Other than that they were a breeze to work on. I had a local seal shop supply the seals and I fitted them easily.
__________________
Regards
Dave
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12-05-2018, 11:11
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#6
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Registered User
Join Date: Dec 2008
Location: SC
Boat: None,build the one shown of glass, had many from 6' to 48'.
Posts: 10,208
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Re: can you identify this steering cylinder?
Quote:
Originally Posted by sv.antea
Please help. Some years ago I ordered online and installed all the components for the autopilot on a 40' yawl including the ram / cylinder. The Hydraulic cylinder developed a slow leak at both ends. The system has seen very little use, so I hope replacing the seals would do the job.
It's a brass cylinder 2"OD, 12" stroke with 3/4" rod dia. Problem is, the manufacturer did not feel confident enough to put their name on it and we can't find any records or brochures on it. So, if someone recognizes the make/model or where to find the replacement parts or recommend facility (preferably central Florida) that can rebuild it, please let me know. Stan
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Try Hynautic, as a guess?
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12-05-2018, 17:36
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#7
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Registered User
Join Date: Jul 2015
Location: Reno / Bodega Harbor
Boat: Bruce Roberts Offshore 44
Posts: 303
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Re: can you identify this steering cylinder?
Looks like my Wagner. Mine is 25+ years old. Rebuild kits are available. I rebuilt mine 6 months ago.
__________________
Rick
S/V Blind Faith
Bodega Bay, CA USA
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12-05-2018, 17:45
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#8
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Registered User
Join Date: Jul 2015
Location: Reno / Bodega Harbor
Boat: Bruce Roberts Offshore 44
Posts: 303
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Re: can you identify this steering cylinder?
__________________
Rick
S/V Blind Faith
Bodega Bay, CA USA
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13-05-2018, 04:03
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#9
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Registered User
Join Date: Apr 2017
Location: Hingham
Boat: Dickerson 37AC
Posts: 665
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Re: can you identify this steering cylinder?
My buddy Adam is a machinist in FL that does a ton of work on really large hydraulics. This is a baby he posted yesterday for his friend to show how to measure and ID hydraulic seals etc. He takes it apart and shows all the wear components.
Might be helpful to review most of the time hydraulic parts are all stock dimensions and their repair is remove and replace. I think other than a pin spanner the two tools he used are a screw driver and a pick.
He has tons of videos on repairs, welding, machining and hydraulics.
https://youtu.be/XPzOw5mtVM8
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14-05-2018, 20:04
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#10
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Registered User
Join Date: May 2014
Posts: 262
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Re: can you identify this steering cylinder?
I rebuilt my Wagner (45 years old). Found a 70 buck rebuild kit on line, and sourced the parts locally for 30. Take it apart and take the seals and o rings, star retainers to a hydraulic shop. Tricky part was getting the seals over the Pistons, used a large socket to stretch them over for 5 minutes, and they stretched the rest of the way over the Piston.
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