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Old 06-24-2021, 08:09 PM   #1
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1984 Californian 34 stock steering pump hynautic rebuild?

So upper helm is leaking through the steering wheel shaft and it feels clunky..
But I can not find any identification verification to look up a replacement or a rebuild kit option..

Its square and aluminum.. I don't know how to post a pic here... Anyone have a clue what pump it is?
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Old 06-24-2021, 08:35 PM   #2
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My guess is Hynautic. I have an 83 Californian with Hynautic. Look for a reservoir with an air valve on top similar to a tire valve.

There's probably no reason to buy a new pump, they're expensive. A good hydraulic shop can overhaul it for you. I recommend you think about overhaul for both helm pumps, the ram and the autopilot pump. Also a complete drain, flush and refill of the system. While you're at it a close inspection of the hydraulic lines too. 35 yrs is a long time.
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Old 06-24-2021, 08:39 PM   #3
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SeaStar supports Hynautic and will be able to answer your questions. I found them to be very helpful when I did a full steering system overhaul this winter.
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Old 06-24-2021, 09:25 PM   #4
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Thanks! I definitely see Hynautic on the Reservoir and it is currently at 1/4 tank with 11 psi.

I will try to contact them tomorrow. My fear was a rebuild would take weeks to het back.
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Old 06-24-2021, 09:32 PM   #5
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1/4 fluid level and 11 PSI are too low. 2/3 and 25 to 35 PSI are what's called for if memory serves.
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Old 06-26-2021, 05:07 PM   #6
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If you wind up needed a rebuild talk to these folks. Very helpful and have parts many others don’t.

Boat Steering Solutions Home
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Old 06-26-2021, 06:23 PM   #7
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Originally Posted by Capt. Jon View Post
If you wind up needed a rebuild talk to these folks. Very helpful and have parts many others donít.

Boat Steering Solutions Home
They rebuilt a steering cylinder for me. The turnaround was 1 day, but that was before Covid.
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Old 07-26-2021, 02:02 PM   #8
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Thanks all.
I sent the pump to seatech in San Diego, great turn around time under 270.00 for the rebuild. Seems the pump was previously rebuilt and they pjt one bearing in backwards.

Anyway, wasn't much air in the system... The top of my pump had two little allen screws one for each port/srbt..

Works like a champ!

Thank you everyone!

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