Hydraulic steering problems

This forum is for comments and the exchange of information relating to Trojan Boats and boating. Please do not post used parts or boats For Sale in this area. For general, non-boating topics please use our "General Discussions" section.

Note: Negative or inflammatory postings will not be tolerated.

Moderators: BeaconMarineBob, Moderator, BeaconMarineDon

NOTHING ELSE MATTERS
Registered user
Posts: 24
Joined: Sat Jul 29, 2017 3:03 pm
Location: Long Island NY

Hydraulic steering problems

Post by NOTHING ELSE MATTERS »

Hello, anyone knows what brand hydraulic steering pump is on a 9 meter international 1983?
Also how to bleed the system?
The steering is turning for a long time and the rudders move very slow. The boat is out oh the water now and I do not see any leak anywhere.
Thank you.
User avatar
Big D
Ultimate User
Posts: 2874
Joined: Sat May 01, 2010 10:39 pm
Location: Ontario, Canada

Re: Hydraulic steering problems

Post by Big D »

If you have bleed TEE fittings at the end of the lines on the steering cylinder, you could bleed the system there or you can simply turn the helm back and forth several times (takes a while) and the system will bleed itself.
She was a 1969 36 ft wooden beauty with big blue 440s that we'll miss forever.
And thanks to the gang, 2012 Trojan Boater Of The Year
NOTHING ELSE MATTERS
Registered user
Posts: 24
Joined: Sat Jul 29, 2017 3:03 pm
Location: Long Island NY

Re: Hydraulic steering problems

Post by NOTHING ELSE MATTERS »

Thank you
User avatar
Big D
Ultimate User
Posts: 2874
Joined: Sat May 01, 2010 10:39 pm
Location: Ontario, Canada

Re: Hydraulic steering problems

Post by Big D »

Are you experiencing a problem with the steering?
She was a 1969 36 ft wooden beauty with big blue 440s that we'll miss forever.
And thanks to the gang, 2012 Trojan Boater Of The Year
NOTHING ELSE MATTERS
Registered user
Posts: 24
Joined: Sat Jul 29, 2017 3:03 pm
Location: Long Island NY

Re: Hydraulic steering problems

Post by NOTHING ELSE MATTERS »

Big D wrote:Are you experiencing a problem with the steering?
Yes, the wheel turns too many times with very little movement on the rudders.
User avatar
prowlersfish
2024 Gold Support
2024 Gold Support
Posts: 12645
Joined: Sat Nov 05, 2005 6:56 pm
Location: Lower Chesapeake Bay ,Va

Re: Hydraulic steering problems

Post by prowlersfish »

Most the 10-12 meter boats used the Hynautic system . Not sure on the 9 meter The Hynautic system uses a reservoir that holds fluid and is under air pressure . That would be a good place to start if you have that system . check the fluid and pressure and bleed it as BigD said . Can you post a Photo of the helm pump ? We can ID the system .

The reservoir looks like this if you have Hynautic
Attachments
hynautic-reservoir-hp5810y_L.jpg
hynautic-reservoir-hp5810y_L.jpg (18.29 KiB) Viewed 8570 times
Boating is good for the soul
77/78 TROJAN F36 Conv.
6BTA Cummins diesels
Life is to short for a ugly boat :D
BeaconMarineBob
Beacon Bob
Beacon Bob
Posts: 269
Joined: Thu Aug 06, 2009 6:39 pm
Location: Easton, PA
Contact:

Re: Hydraulic steering problems

Post by BeaconMarineBob »

Here is the link the the owners manual for the Hynautic.

https://www.trojanboats.net/zencart/ind ... 6cfcf6c64d

Or see photo of air purge instructions.
Attachments
IMG_7163.JPG
IMG_7163.JPG (41.72 KiB) Viewed 8558 times
Bob Cushman, Owner
Beacon Marine Supply
Bob@BeaconMarineSupply.com
(609)713-4602
~ Please Contribute to the Forum ~
NOTHING ELSE MATTERS
Registered user
Posts: 24
Joined: Sat Jul 29, 2017 3:03 pm
Location: Long Island NY

Re: Hydraulic steering problems

Post by NOTHING ELSE MATTERS »

prowlersfish wrote:Most the 10-12 meter boats used the Hynautic system . Not sure on the 9 meter The Hynautic system uses a reservoir that holds fluid and is under air pressure . That would be a good place to start if you have that system . check the fluid and pressure and bleed it as BigD said . Can you post a Photo of the helm pump ? We can ID the system .

The reservoir looks like this if you have Hynautic
That is the pump I have but for single helm.
BeaconMarineBob
Beacon Bob
Beacon Bob
Posts: 269
Joined: Thu Aug 06, 2009 6:39 pm
Location: Easton, PA
Contact:

Re: Hydraulic steering problems

Post by BeaconMarineBob »

Works the same way on single station ( 9 Meter )
Follow instructions on on single sheet in post above or down load the manual.

Add fluid
Purge system
Check fluid
Add air pressure
Test

We recommend you keep a bike pump on board if
you ever need to do this when away from home port.
Bob Cushman, Owner
Beacon Marine Supply
Bob@BeaconMarineSupply.com
(609)713-4602
~ Please Contribute to the Forum ~
NOTHING ELSE MATTERS
Registered user
Posts: 24
Joined: Sat Jul 29, 2017 3:03 pm
Location: Long Island NY

Re: Hydraulic steering problems

Post by NOTHING ELSE MATTERS »

BeaconMarineBob wrote:Works the same way on single station ( 9 Meter )
Follow instructions on on single sheet in post above or down load the manual.

Add fluid
Purge system
Check fluid
Add air pressure
Test

We recommend you keep a bike pump on board if
you ever need to do this when away from home port.
Mine came with a pump instead of bicycle valve, all you do is pump it a few times and the preasure builds up to 35 with a few strokes.
User avatar
El L Sea
2024 Gold Support
2024 Gold Support
Posts: 179
Joined: Fri Oct 23, 2015 8:27 am
Location: Fort Myers, FL

Re: Hydraulic steering problems

Post by El L Sea »

My 12m also has the built in pump, but to save on smashed knuckles because of clearance, I also carry a tiny bike pump (which also works great to plump up the fenders).

I also had to replace the Schrader valve, as it was leaking ever so slowly.
El L Sea
Fort Myers, FL
1988 Trojan 12m International Sport Fisherman
2017 Boston Whaler 130 Tender w/ 40HP Mercury
NOTHING ELSE MATTERS
Registered user
Posts: 24
Joined: Sat Jul 29, 2017 3:03 pm
Location: Long Island NY

Re: Hydraulic steering problems

Post by NOTHING ELSE MATTERS »

El L Sea wrote:My 12m also has the built in pump, but to save on smashed knuckles because of clearance, I also carry a tiny bike pump (which also works great to plump up the fenders).

I also had to replace the Schrader valve, as it was leaking ever so slowly.
What is the Schrader valve?
FWIW, When I pump it to 35 PSI it will keep the pressure for the whole day and maybe more, but the rudders don't turn unless I turn the wheel 15-20 times in one direction.
BeaconMarineBob
Beacon Bob
Beacon Bob
Posts: 269
Joined: Thu Aug 06, 2009 6:39 pm
Location: Easton, PA
Contact:

Re: Hydraulic steering problems

Post by BeaconMarineBob »

1.You have air in the lines this is why you have to turn the wheel so many times to get rudders to move.

2. The helm pump is leaking causing air to get in lines and the loss of pressure.

3. The ram is leaking causing air to get in lines and loss of pressure.

4. The fact you can not keep the pressure for more then a day or so means you have a leak some were.

5. There should be signs of oil leaking under the helm or around the ram.
Bob Cushman, Owner
Beacon Marine Supply
Bob@BeaconMarineSupply.com
(609)713-4602
~ Please Contribute to the Forum ~
BeaconMarineBob
Beacon Bob
Beacon Bob
Posts: 269
Joined: Thu Aug 06, 2009 6:39 pm
Location: Easton, PA
Contact:

Re: Hydraulic steering problems

Post by BeaconMarineBob »

1.You have air in the lines this is why you have to turn the wheel so many times to get rudders to move.

2. The helm pump is leaking causing air to get in lines and the loss of pressure.

3. The ram is leaking causing air to get in lines and loss of pressure.

4. The fact you can not keep the pressure for more then a day or so means you have a leak some were.

5. There should be signs of oil leaking under the helm or around the ram.
Bob Cushman, Owner
Beacon Marine Supply
Bob@BeaconMarineSupply.com
(609)713-4602
~ Please Contribute to the Forum ~
User avatar
prowlersfish
2024 Gold Support
2024 Gold Support
Posts: 12645
Joined: Sat Nov 05, 2005 6:56 pm
Location: Lower Chesapeake Bay ,Va

Re: Hydraulic steering problems

Post by prowlersfish »

Sounds like you have a leak for sure and pretty good on at that . How much fluid are you adding ? Have bleed it as noted above ? Hows it work after bleeding ? look at all the areas Bob described .
Boating is good for the soul
77/78 TROJAN F36 Conv.
6BTA Cummins diesels
Life is to short for a ugly boat :D
Post Reply