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Hydraulic Fluid for Seastar/Baystar
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jennykatz



Joined: 15 Dec 2003
Posts: 1678
City/Region: naples
State or Province: FL
C-Dory Year: 2006
C-Dory Model: 23 Venture
Vessel Name: Little Treasurer
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PostPosted: Sat Feb 04, 2017 7:40 am    Post subject: fluids Reply with quote

Can these fluids be mixed or do you need to purge the system of every last drop of SEA STAR OUT ?
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colbysmith



Joined: 02 Oct 2011
Posts: 4523
City/Region: Madison
State or Province: WI
C-Dory Year: 2009
C-Dory Model: 25 Cruiser
Vessel Name: C-Traveler
Photos: C-Traveler and Midnight-Flyer
PostPosted: Sat Feb 04, 2017 10:48 am    Post subject: Reply with quote

I didn't purge mine, when I added the Aeroshell, and everything has been working fine. Colby
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SEA3PO



Joined: 02 Nov 2003
Posts: 1835
City/Region: Chester
State or Province: CA
C-Dory Year: 2003
C-Dory Model: 22 Cruiser
Vessel Name: SEA3PO
Photos: SEA3PO
PostPosted: Sat Feb 04, 2017 11:09 am    Post subject: Reply with quote

I don't mind paying the extra at West Marine...they are local, I get the stuff when I need it....and when my radar gave me trouble they replaced the entire unit...dome, C80 and all the parts...free... it was four years old..it was analog and the new unit was digital (why they replaced everything) AND they were nice about it.... It always went out just when I went into a fog bank.

Joel
SEA3PO
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journey on



Joined: 03 Mar 2005
Posts: 3593
City/Region: Valley Centre
State or Province: CA
C-Dory Year: 2005
C-Dory Model: 25 Cruiser
Vessel Name: journey on
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PostPosted: Sat Feb 04, 2017 3:13 pm    Post subject: Reply with quote

SeaStar hydraulic fluid IS Mil-H-5606 without the dye. If you mix the 2, you are mixing Mil-H-5606 with Mil-H-5606.

Mil-H-83282 is the replacement for Mil-H-5606, which means they are compatible. Since Mil-H-83282 is non-flammable, it would not hurt to purge the Mil-H-5606 to give you more safety, but not necessary.

I cannot buy Mil-H-5606 anymore, but you can probably special order it somewhere.

Boris
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hardee



Joined: 30 Oct 2006
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City/Region: Sequim
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Vessel Name: Sleepy-C
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PostPosted: Mon Feb 06, 2017 1:54 pm    Post subject: Reply with quote

Boris, thanks for the details on the mixing question. I will by purchasing more fluid before my next trip north.

Harvey
SleepyC Moon


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thataway



Joined: 02 Nov 2003
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City/Region: Pensacola
State or Province: FL
C-Dory Year: 2007
C-Dory Model: 25 Cruiser
Vessel Name: thataway
Photos: Thataway
PostPosted: Mon Feb 06, 2017 2:34 pm    Post subject: Reply with quote

Quote:
I cannot buy Mil-H-5606 anymore, but you can probably special order it somewhere.


Boris, I wonder if this is a California thing? Maybe shipping? What I just received in by UPS about 2 weeks ago is "Mil-H-5606 A" It was manufactured in Dec 2016 according to the DOM on the can.

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Bob Austin
Thataway
Thataway (Ex Seaweed) 2007 25 C Dory May 2018 to Oct. 2021
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colbysmith



Joined: 02 Oct 2011
Posts: 4523
City/Region: Madison
State or Province: WI
C-Dory Year: 2009
C-Dory Model: 25 Cruiser
Vessel Name: C-Traveler
Photos: C-Traveler and Midnight-Flyer
PostPosted: Fri May 01, 2020 8:46 pm    Post subject: Reply with quote

Bringing this thread back alive as I noticed that the hydraulic steering fluid in our new 25 is a bluish color. I used some Aeroshell 41 in Midnight Flyer which is red. And I know the expensive stuff from Seastar is clear. Anyone know what brand is bluish? I may flush most of it out when I install the autopilot into C-Traveler, but just wondering what might be in there now? Thanks. Colby
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DayBreak



Joined: 16 Jul 2017
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PostPosted: Fri May 01, 2020 11:09 pm    Post subject: Reply with quote

Colby, congratulations on the purchase of your 25 Cruiser. My opinion for you is to do a full flush of the old hydraulic fluid and put in the recommended fluid for the Seastar unit. I think you will feel better in doing so and you will not have any worries after the job is done.
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Marco Flamingo



Joined: 09 Jul 2015
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PostPosted: Sat May 02, 2020 12:59 pm    Post subject: Reply with quote

I had a horrible leak in my Wagner lower helm on my new boat. A zinc piece had disintegrated into crumbs allowing oil to squirt out. After looking at everything I could find on the web about the scarcity of Wagner parts and no agreement on which specific hydraulic oil(s) work with my old model, I went to the hardware store and bought new o-rings and Brand X hydraulic fluid.

The fluid, which I also use for my log splitter and garage jack was $14 for a gallon. No dye or anything. So far, when I turn the wheel the rudder moves due to hydraulic pressure. That was my goal. Time will tell if I have a catastrophic failure for not using the right colored expensive stuff from a marine store, assuming people can finally agree on which is the right one. Color me sceptical.

Mark
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thataway



Joined: 02 Nov 2003
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City/Region: Pensacola
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C-Dory Model: 25 Cruiser
Vessel Name: thataway
Photos: Thataway
PostPosted: Sat May 02, 2020 6:02 pm    Post subject: Reply with quote

I believe the Wagner systems will do fine on almost any fluid. I have had a couple of them thru the years, and used everything from "jack oil" to mil spec.

I use one of the Mil spec equivalents for the Sea Star. My Phillips is reddish color. I am going to do a complete flush when I put new seals in my ram sometime in the next few weeks.

It is probably a good idea to flush the system every few years--maybe 5 would be a good goal.
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localboy



Joined: 30 Sep 2006
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City/Region: Lake Stevens via Honolulu
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PostPosted: Tue May 19, 2020 3:15 pm    Post subject: Reply with quote

I bought aviation hydraulic fluid. I got a gallon for what the small bottle of Seastar cost and the only difference is it's dyed red so leaks can be more easily located.
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mstrpo



Joined: 27 Aug 2021
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City/Region: Battle Ground
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PostPosted: Sat Aug 19, 2023 10:43 am    Post subject: Reply with quote

Thanks for the idea Colby! I just purchased a gallon from Pearson Field here in Vancouver, WA for $44 + tax. That's about 1/3 it would have cost per quart!
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