sea star hydraulic leak

tlingitwarrior

Well-known member
Joined
Mar 28, 2008
Messages
2,895
Reaction score
241
Location
Anchorage
Noticed several ounces of fluid leaked from the sea star system, oil accumulating on the swim step. Going to do some research tomorrow on trouble shooting. Bad seals perhaps?
 

potbuilder

New member
Joined
Apr 25, 2006
Messages
4,658
Reaction score
147
Location
Palmer
might it be oil leaking out of the rams for your drive or outboard ?? Isn't the steering ram more on the inboard side of your stern ??
 

Trakn

New member
Joined
Jul 12, 2009
Messages
263
Reaction score
12
Location
Soldotna
I'd say you got leaking seals. I changed mine last year. It's pretty easy to do and the boat dealerships should have everything you need. You tube has demos or videos on it.
Basically there's a pack of rubber O rings you need a seal wrench came with my O rings. Then the correct hydraulic fluid and fill tube and bleed the air in the back and fill from steering column. River and Sea Marine in Soldotna has evrything you need so you can always try them.
 

T.R. Bauer

New member
Joined
Jan 21, 2008
Messages
1,604
Reaction score
52
might it be oil leaking out of the rams for your drive or outboard ?? Isn't the steering ram more on the inboard side of your stern ??

I agree he is talking about the rams. Those seals are not terrible to change out.
 

Trakn

New member
Joined
Jul 12, 2009
Messages
263
Reaction score
12
Location
Soldotna
Yes,,, his Sea Star rams are dripping fluid one of his rubber O rings is probably weathered and has a crack or break.
I agree he is talking about the rams. Those seals are not terrible to change out.
 

Sobie2

New member
Joined
Jul 11, 2006
Messages
1,124
Reaction score
29
Location
Juneau
Before going that route, open and close the bleeders on the ram. Sometimes those little buggers leak.

Sobie2
 

kevin476

New member
Joined
Sep 29, 2010
Messages
446
Reaction score
16
Location
Sterling
Alaska rubber or Alaska bearing on international would have all the orings you'd need.

Yes sir I will second that. We only handle the hydraulic repair out of our valley store right now though. 907-373-1345 ask for Brian Maack. He may be able to get you fixed up.
 

JOAT

New member
Joined
Aug 15, 2007
Messages
3,760
Reaction score
497
Location
Soldotna, ALASKA since '78
The sea star uses a special packing gland on each end. It's not just an o-ring. You have to buy it from a sea star dealer. The kit is available online or at many marine dealers. RSM has them on the shelf for about $130-ish. You can find them online for under $100 if you want to get a set to put on the shelf. Note that you can buy just the packing glands next time if you keep the special spanner wrench and the little plastic guide that comes with the full kit. These seals are notorious for failing, especially when cold stored over the winter in sub-zero temperatures.
 

Garyak

New member
Joined
Jan 2, 2009
Messages
1,304
Reaction score
39
Noticed several ounces of fluid leaked from the sea star system, oil accumulating on the swim step. Going to do some research tomorrow on trouble shooting. Bad seals perhaps?

Wondering if you were able pin point and resolve the problem? I'm thinking about hydraulic steering for my project and found this thread doing a search on same.
 

excav8tr

New member
Joined
Sep 10, 2006
Messages
564
Reaction score
8
Location
wasilla
amazon carries the complete kit with wrench also for fluid you can use the aviation equivilant & buy a gallon for what they want for a quart of the seastar stuff
 

Rob B

New member
Joined
Jun 12, 2006
Messages
3,411
Reaction score
72
Location
Eagle River, Alaska,
I've found one key way to keep these deals from leaking is to wash all the fish scales off the Rams after each trip. The scales dry almost clear and stick to the ram then get stuck in the glands. Easy to replace but expensive for what they are.
 

Nunya

New member
Joined
May 8, 2006
Messages
202
Reaction score
7
Location
Sterling
There is a wiper ring and a lip seal inside the nut. Remove the nut, remove the lip seal and replace with a #210 "O" ring. Costs about ten cents. The wiper ring doesn't seal anything it just wipes the rod as it travels. The lip seal does the sealing and that's where the problem is, they don't last. The "O" ring is more robust and will last longer. If you insist on going back with the original seal here are the part numbers. You can get any of these at any hydraulic shop, I only use the #210 "O" rings myself. I also use it in the helm reservoir instead of the "Quad ring".

210 'O' ring - use this instead of U seal below.
DSU 12-0.75-12 - this is a U seal
HW- 0750N - wiper ring
 

kobuk

Member
Joined
Nov 30, 2006
Messages
410
Reaction score
15
Location
Anchorage
There is a wiper ring and a lip seal inside the nut. Remove the nut, remove the lip seal and replace with a #210 "O" ring. Costs about ten cents. The wiper ring doesn't seal anything it just wipes the rod as it travels. The lip seal does the sealing and that's where the problem is, they don't last. The "O" ring is more robust and will last longer. If you insist on going back with the original seal here are the part numbers. You can get any of these at any hydraulic shop, I only use the #210 "O" rings myself. I also use it in the helm reservoir instead of the "Quad ring".

210 'O' ring - use this instead of U seal below.
DSU 12-0.75-12 - this is a U seal
HW- 0750N - wiper ring

Tell me more about the 210 o ring. Is that a part number or size? Where would I find such a thing? I replaced my seals several years ago and as others mentioned it isn't difficult, if the o ring is cheaper and works better, I'm all for that! You mentioned that there isn't a reason to replace the wiper seal also?
 
Top