Fixing a dirty speed transducer (knotmeter) on your boat, Raymarine DST800 and others | Ep. 91

[@RichardMassam-ir4dh]

Really well done ,. thank you

[@LifeFourPointZero]

Glad you liked it!

[@MichaelP990]

You really helped me solve my problem thanks

[@LifeFourPointZero]

Glad it was helpful for you!

[@Amerona]

If the fouling is not too hard, I managed to clean my paddle wheel with dental floss. Without removing the shaft. Good video as usuals.

[@LifeFourPointZero]

Great idea - we’ll try that! Thanks.

[@Cptnbond]

I like these short tips, in particular since they are not often given such detailed attention. Well done. Cheers.

[@LifeFourPointZero]

Glad you liked it! We have more short tips coming in the future.

[@kevinsummers7015]

My speed sensor has been intermittent! Add an item to the things to do list! Thanks for the great video. I didn't know about anti-fouling paint for the transducer!

[@LifeFourPointZero]

Good luck Kevin, hope it helps!

[@sitatt]

Thank you, mate! Really useful tip!

[@LifeFourPointZero]

Glad it helped!

[@mrstevenrowe]

great show and very useful

[@b-doggk3486]

I soak mine in vinegar for a couple hours and clean with a q-tip, small wire brush.

[@LifeFourPointZero]

Sounds like a good approach!

[@Cedandkikisailing]

Well done, thanks! Just bought a used Beneteau 373, sailing back from Toronto to Montreal and at some point the speed indicator went to 0 intermittently. If I have time soon (still a working joe), I will pull it. Good advice on where to store the plug. My marine surveyor also suggested we tie wrap the plug to the transducer wire.

[@LifeFourPointZero]

Yes they can be error prone, being a mechanical rotating object in the water. Sometimes we get weeds caught on ours for a moment. I try to check ours whenever I go in the water for a swim. Good luck!

[@sailingsustainably5625]

Interesting that your unit shows the yellow pre-installation o ring instead of the black o ring that you are supposed to replace the yellow with (according to Air Mar) Do you have leaks?

[@LifeFourPointZero]

No, we have not had leaks since we’ve used that transducer. To be honest I wasn’t even aware there was a yellow seal (in the top cap). The replacement o ring set from airmar comes with two sets of black o rings and I have replaced them once before as a precaution but water has never leaked past those two o rings. Nor does it leak when I twist loose the cap. It only starts to leak when I’ve slid the transducer most of the way out of the housing. Fair Winds!

[@trevorthrale797]

Hi Guys, I can’t get the blank in when removing the transducer. It seems to get stuck 2/3 down. Any advice?

[@LifeFourPointZero]

Hi Trevor. First you might check to make sure the big arrow on the top is facing forward, just like supposed to do with the real transducer. Second, I have noticed, if there has been some growth on the transducer, that it can take some steady pressure on the blank to get it to set all the way in. I think this might be because of growth around the bottom part of the tube. I try to get it down in enough that I can grab a thread or two with the nut and then that helps force it the rest of the way down. Putting some mild liquid soap on the o rings of the blank can help too. Good luck!

[@USA4thewin]

ok my turn now.