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Engine Technical Discussion This is our non outboard engine related technical discussion forum. If your boat is powered by a Inboard/Outboard, Jet drive, V-drive, or even something else, then this is the forum for you! Topics include engine repair and maintenance, modifications, drives and gearcases, electrical and electronics, etc. For technical assistance related to outboards, please use our outboard tech forum.

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Old 09-26-2020, 07:17 PM   #1
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Default Power Steering Problem

I have an 89 Senator with 7.4 litre / Bravo 1

I have a leak in the Booster Cylinder or Control Valve . Of course neither part are available anymore .
Can I just remove the pump belt and still be able to steer ?

I've read on another forum that the replacement ( new design ) has propritary fittings from Mercury that are different from my old hoses .
Any ideas ?
Thanks

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Old 09-26-2020, 08:38 PM   #2
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Default You probably already checked but...

IF Mercury does not have replacement parts or something to substitute in with new hoses, I would check into having the units rebuilt at a hydraulic shop.

Any good marinas or marine shops where you live, maybe they have a fix for this. I think I would shop around a bunch.
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Old 09-26-2020, 08:53 PM   #3
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I've got paper towels wrapped around them so I can find out which one is leaking .

I have found seal kits are available .
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Old 09-27-2020, 11:37 PM   #4
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Pop over to Original Marine Surplus and look at their alpha/bravo power steering actuator. Is this what we are talking about here? Says they have 13 of em at 100 bucks each.
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Old 09-30-2020, 02:44 PM   #5
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Default

Thanks Jimway . Those are the new design . Fittings are different . Looked at replacing hoses and the correct hoses for the new design have the wrong fittings for the pump end . Aarg

Good thing I have all winter to figure this out .
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Old 09-30-2020, 06:55 PM   #6
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Seal kits no longer available
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Old 09-30-2020, 09:08 PM   #7
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Default

Is it possible that the older design and the older Corvette share the same components? I seem to remember going this route in the past. What about just having the hydraulic hose guy swap out the proper end fittings to fit the new one. Do you have the component part number so that I can hit up the local parts guy? Look at clevis for part number and tell me if it says 95847.
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Old 09-30-2020, 10:23 PM   #8
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I just happen to have a 76 Corvette sitting in the garage . I'll have to look tomorrow . I think they are different .
Been searching online for a solution . Might have to look into getting new design control valve / booster cyl and adapting new hoses to the old pump as you suggested.
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Old 10-01-2020, 12:03 PM   #9
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Yeah, I think the C3's used the same control valve so a rebuild kit might fit fit.
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