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Old 25 March 2012, 10:27   #1
Country: Ireland
Length: 3m +
Join Date: Mar 2012
Posts: 4
Yamaha 30hp 2 steering help

Hi. Please see pics.
New here to forum and ribs. Basically, I have a steering unit on my rib for a 3Ohp Yamaha 2 stroke.
I guess the system is hydraulic and somehow telescopic?
When the rod is fully extended as in pic, it is smooth to move to mid-position.
However, when I steer any further (retracting rod), it jams solid (even with engine disconnected). I have greased rod, but no good.
Can anyone direct me as to what is possible issue?
Can I disassemble and replace seals etec??
What type/brand of steering system is it. I have no other visible markings?
Many thanks for any direction.

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Old 25 March 2012, 11:55   #2
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Country: UK - Scotland
Boat name: imposter
Make: FunYak
Length: 3m +
Engine: 2 stroke YAM 20 HP
MMSI: 235089819
Join Date: Sep 2005
Posts: 9,413
I doubt it is hydraulic. It is probably something like teleflex steering. Basically a bit like a rack and pinion, where the inside of the steering cable is moved by a 'cog' in the helm unit. The cable then forces that 'piston' to expand or contract moving the engine.

The classic problem is the piston corrodes and stops moving completely, sounds like that is not your issue. It's possible the problem is damage to the piston from over assertive freeing of a seized piston, or that some of the teeth on the cable are worn or sheared off. It's not a hugely expensive repair 100 quid-ish? and the cable and piston are supplied as one unit. Hopefully your helm unit is ok.

I am of course guessing from your description.
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Old 26 March 2012, 15:13   #3
Country: Ireland
Length: 3m +
Join Date: Mar 2012
Posts: 4
Thanks so much for this. I now understand what's needed. Will just replace the unit.

One final question When they are listed as, for example 10ft on Ebay, is this all inclusive length or just the length of black sleeve section?
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Old 26 March 2012, 16:12   #4
Country: UK - England
Town: Plymouth
Length: 6m +
Join Date: Mar 2011
Posts: 2,693
Have a look at your existing cable it should have the length stamped on it just before it enters the engine

Here's. Link which gives you advice on measuring if you cannot find the markings
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Old 26 March 2012, 16:18   #5
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Country: UK - England
Town: The wilds of Wiltshire
Boat name: WhiteNoise/Dominator
Make: Ballistic 7.8/SR5.4
Length: 7m +
Engine: Opti 225/Yam 85
MMSI: 235090687/235055163
Join Date: Jul 2005
Posts: 12,546
In those pics, it looks like it's fully extended to me and you've got it mounted onto a fitment for dual cable/pulley steering.

Is there anywhere else on the outboard you can attach the rod to that's closer to the transom clamp?
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