Above-the-Fold 15 Posted January 1, 2019 Share Posted January 1, 2019 My old Autohelm tiller pilot sporadically yaws 40 degrees to port, which can be disconcerting. Can't figure out why. Anybody in Auckland repair them? I think the new models have the compass in the instrument itself. Would a new one be a drop-in replacement? The reason I ask that is that I'd prefer not to be running new wiring, putting in new plugs, etc. Quote Link to post Share on other sites
Island Time 1,239 Posted January 1, 2019 Share Posted January 1, 2019 Likely not worth repairs. Parts no longer available. No need to change wiring, just the plug,its pretty easy. Quote Link to post Share on other sites
Crazyhorse 47 Posted January 1, 2019 Share Posted January 1, 2019 As IT says but before you bin it are you able to pull it apart? Had a old navico that did the same and found the problem. A fluxgate needs to sit as level as possible to operate as even 1 degree of tilt is about 10 degrees of error! They should sit on in a gimbal which allows it to stay horizontal when heeled over and over time the can either stick of simply not tilt! A bit of silicon spray, give it a shake and it might just work. Did for me but wont last that long as the gimbal pivot pins have probably worn over time. Quote Link to post Share on other sites
Crazyhorse 47 Posted January 2, 2019 Share Posted January 2, 2019 Another thought, voltage drop. If the TP isnt getting a good supply through a bad connection, everytime the motor operates it will rob the fluxgate of power. Quote Link to post Share on other sites
Above-the-Fold 15 Posted January 2, 2019 Author Share Posted January 2, 2019 Thanks to all. The TP itself sits in a wee box built into the starboard seat. I'm not sure where the fluxgate compass is but I don't think we have moved anything major. recently. It does its trick whether under sail or power, so it's not a power-drop issue... unless there is a bad connection somewhere. Quote Link to post Share on other sites
waikiore 400 Posted January 2, 2019 Share Posted January 2, 2019 Shift your toolbox or anything metallic further away, if its an Autohelm they can be serviced, Grant at Lustys or Paul at Dynamic Marine Quote Link to post Share on other sites
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