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Engine control: electronic throttle/gear system, Y
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Kitebays View Drop Down
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Joined: 22 May 2024
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Points: 17 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Kitebays Quote  Post ReplyReply Direct Link To This Post Topic: Engine control: electronic throttle/gear system, Y
    Posted: 10 August 2025 at 03:25

I experienced a serious issue while manoeuvring my Hanse 460 into the berth. Regardless of the throttle lever position – forward, neutral, or reverse – the yacht maintained strong forward propulsion with no reverse thrust.


The setup:

• Engine: Yanmar 80 HP with saildrive (3-blade Gori propeller)

• Year: 2024

• Engine control: electronic throttle/gear system, Yanmar VC20


Has anyone experienced a similar failure?

What could be the likely causes — electrical (control lever, wiring, solenoid), hydraulic, or mechanical (gearbox / saildrive)?


Any advice on diagnostic steps before haul-out?


Thank you,

Sergi
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Bülent izmir View Drop Down
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Points: 5 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Bülent izmir Quote  Post ReplyReply Direct Link To This Post Posted: 21 September 2025 at 21:25
Hello, I hope you have solved the problem. I had a similar problem on my boat. There is an actuator under the bed in the left rear cabin. It was installed 3-5 cm back. It took me a long time to find this problem.🙋🏻
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Kitebays View Drop Down
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Points: 17 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Kitebays Quote  Post ReplyReply Direct Link To This Post Posted: 22 September 2025 at 14:27
Hello, thank you. In my case the issue was that the throttle cable bracket had come loose. It had nothing to do with the electronics, just ordinary bolts. A faulty solenoid could also be a possible cause.
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Gio72460 View Drop Down
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Points: 1 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Gio72460 Quote  Post ReplyReply Direct Link To This Post Posted: 22 September 2025 at 16:46
Same here. It was "just" a loose bolt but huge risk. I had a word or two with who commissioned the boat.
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Ananda View Drop Down
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Points: 24 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Ananda Quote  Post ReplyReply Direct Link To This Post Posted: 28 September 2025 at 18:18
Hi guys, I'm in the process of installing (converting) my manual throttle to a VC20 system.

Would one of you 460 owners with VC20 be able to kindly upload a photo of where your shift actuator is located or describe its location?

Also I'm very interested where Hanse installs the helm and drive ECUs!

Any help would wonderfully appreciated! Thx. Wm.
Hanse 460 2022 "Ananda" Annapolis Maryland USA
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Ananda View Drop Down
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Points: 24 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Ananda Quote  Post ReplyReply Direct Link To This Post Posted: 14 February 2026 at 14:56
Originally posted by Bülent izmir Bülent izmir wrote:

Hello, I hope you have solved the problem. I had a similar problem on my boat. There is an actuator under the bed in the left rear cabin. It was installed 3-5 cm back. It took me a long time to find this problem.🙋🏻


Where specifically is the actuator - I am trying to install one with a VC20 upgrade and need to know the factory location. Also, to confirm left rear cabin is Port side? Thanks you!
Hanse 460 2022 "Ananda" Annapolis Maryland USA
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ariette View Drop Down
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Points: 202 		Post Options Post Options   Thanks (0) Thanks(0)   Quote ariette Quote  Post ReplyReply Direct Link To This Post Posted: 14 February 2026 at 16:44
Hi It is the port rear cabin and it's hard up against the centre line of the boat about midway back. It is under a narrow plywood top cover
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Ananda View Drop Down
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Points: 24 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Ananda Quote  Post ReplyReply Direct Link To This Post Posted: 14 February 2026 at 22:22
Great - thank you so much!
Hanse 460 2022 "Ananda" Annapolis Maryland USA
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Ananda View Drop Down
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Points: 24 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Ananda Quote  Post ReplyReply Direct Link To This Post Posted: 02 March 2026 at 01:08
Could anyone with the Yanmar Electronic Throttle option and a Yanmar 4JH engine tell what the part number is on their Drive ECU? Would like to confirm it's a 164200-10830. Many thanks 
Hanse 460 2022 "Ananda" Annapolis Maryland USA
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