Yanmar stop cable: upgrade to electronic button? - SailNet Community
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post #1 of 16 Old 11-18-2013 Thread Starter
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Yanmar stop cable: upgrade to electronic button?

I have a 2GM20F with the steel stop cable. It is time for it's every 6 month greasing, which is sort of an annoying job.

I know that an electronic/solenoid controlled stop is a factory option. How easy of an upgrade is this to add? My friend's boat with a Beta engine has solenoid controlled stop and it is a lot nicer to use.

I'm okay with knowing that I'd need to do it manually if something failed in the stop circuit.

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post #2 of 16 Old 11-18-2013
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Re: Yanmar stop cable: upgrade to electronic button?

I have a Beta20 with the solenoid. I'm probably going to add a manual cable control to it.
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post #3 of 16 Old 11-18-2013 Thread Starter
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Re: Yanmar stop cable: upgrade to electronic button?

Everyone (cable or solenoid) should know how to turn off their engine directly from the engine, bypassing whatever control system is installed. I'm not sure how a manual cable is that much more reliable than the solenoid.

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post #4 of 16 Old 11-18-2013
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Re: Yanmar stop cable: upgrade to electronic button?

6 month greasing?

Alex every time someone tells me they do that I cringe. What you are doing is packing in grease that then binds the cable.
Most often things are fine until someone decides to service them.

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Re: Yanmar stop cable: upgrade to electronic button?

My cable rusts and starts to bind if I don't grease it. I completely remove it, clean off rust, lightly grease it, and put it all back together.

The panel on my boat has been replaced at least once because the friction on the stop cable put too much load on the panel. On the last replacement (the only one that I've done) I also put a backing plate on the cable.

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post #6 of 16 Old 11-18-2013
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Re: Yanmar stop cable: upgrade to electronic button?

I would just buy a new cable to replace the old one and see how many years it can go without needing attention. By chance does your existing cable have a lot of tight radius bends? I replaced the shifter cable on my boat with one that was 2' longer so the bends wouldn't have to be so tight. The old cable slid smoothly once removed. The new longer cable worked great.
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Re: Yanmar stop cable: upgrade to electronic button?

My cable is too long. Pearson or whoever installed it corrected that with some too tight loops of cable. I corrected that to have much larger bend radii.

If I replace the cable I'm likely to do it with teflon lined bicycle brake housing and die drawn stainless cable. The boat-specific options here seem to be similar at best, but for about 4x the same amount of money. Bicycle brake cables are designed to take a lot more load. Has anyone experimented with that?

I was hoping to learn about changing between the systems, not just replacing what I have.

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Re: Yanmar stop cable: upgrade to electronic button?

To change systems is relatively easy. You will have to acquire the stop solenoid which attaches to the same place your stop cable does on the engine. Mount it and adjust it for proper travel. Run a pair of wires to wherever you wish to mount a momentary switch, probably near the helm. Mount the switch. Connect the wires so that when you push the stop switch it energizes the stop solenoid.

What you now have is a more complex system with more potential points of failure. Make good connections and understand how to shut the motor down in the event your new electrical stop system fails to work when you need it.
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Re: Yanmar stop cable: upgrade to electronic button?

Thanks, I was hoping it was as simple as it looked.

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Re: Yanmar stop cable: upgrade to electronic button?

It appears that you are considering a solenoid that mechanically operates some kind of lever? We had a VW diesel that had a solenoid that opened/closed the fuel supply. While my wife was driving on one of the busiest boulevards in San Francisco it failed, no go. Luckily, she was in the right lane and found a spot to pull off in.

I would think a properly operating cable would be more dependable. I have read that a large CO2 fire extinguisher blown into the intake will kill a runaway.

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