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25 February 2022 at 22:32 #3054
Daniel Prosser
Participant
@danielprosser16600
Tug boat
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25 February 2022 at 22:32 #99632
Daniel Prosser
Participant
@danielprosser16600
Good evening first boat iv had. Got it in the water for the first time today had 15 minutes run time then the motor smoked . Can any one recommend a brushless motor
26 February 2022 at 09:36 #99636
ashley needham
Participant
@ashleyneedham69188
Hi Daniel and welcome to the forum.

Generally speaking a motor will smoke if it’s badly overloaded or simply faulty.

I would check that the propshaft is not binding, and that any lock nuts are adjusted and nipped up tight. Also check that the motor coupling, is free.

I assume the correct voltage battery was used, and perhaps the 15 minutes was not spent at full throttle.

Also the motor may have been unsuitable for the prop you are using and is overloading the motor. A worthwhile purchase is a watt meter to check the current being pulled by the motor.

Was the motor brushed, or brushless to start with, and could we have some info on motor,battery, prop, size of tug etc.

Simply fitting a new motor may not cure your issues….

Ashley.
26 February 2022 at 09:37 #99637
Richard Simpson
Moderator
@richardsimpson88330
Welcome to the forum Daniel.

Firstly I think it would be useful to know a little bit more about the model you are dealing with. Can you tell us everything about the model and the propulsion gear/battery/propeller etc.. that you have fitted before we suggest a suitable motor?

Brushless might not even be the best way to go but we don't know until we know what we are dealing with.
26 February 2022 at 12:16 #99641
Daniel Prosser
Participant
@danielprosser16600
Thank you for your replys the tug in question is a zwarte zee.

Was a brushed motor tug is 91cm and is using 320a esc and a 2s lipo battery .having pulled the motor today it looks like a 540 size and it's 15 years old this might be one of the problems ?
26 February 2022 at 13:04 #99643
Colin Bishop
Moderator
@colinbishop34627
It seems rather unlikely that a 540 motor on 7.2v would be overloaded in a model like that. Ashley's suggestion that something might be binding in either the motor or the dvive train.

Have a read of this article by Glynn Guest which explains what to look for.

**LINK**

Colin

Edited By Colin Bishop on 26/02/2022 13:04:54
26 February 2022 at 15:16 #99644
Daniel Prosser
Participant
@danielprosser16600
Thank you Colin just had a little read and looked at my prop and ups well supported and spins freely I'm putting it down to a very old motor
26 February 2022 at 15:38 #99645
Colin Bishop
Moderator
@colinbishop34627
Daniel,

This one would probably be well matched to the boat and your 2S LiPo. 4.5 -15 volt range and low drain.

Supplied with or without a mount

**LINK**

**LINK**

Colin
26 February 2022 at 16:04 #99646
Daniel Prosser
Participant
@danielprosser16600
Thank you very much I will order one now
26 February 2022 at 16:57 #99648
Colin Bishop
Moderator
@colinbishop34627
I think that motor will do the job but you have the option of upping the battery to 3S if you want more power whilst still remaining within the motor specs.

Colin
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