fried something?

[dgfarb]

ok, still (behind) the learning curve. I am waiting for a Ammo 2300, but in the meantime, I threw a 2600 that I had in another boat. I was running 4s Lipo, Aquacraft 60 amp esc., and a CF40 prop. I was a running slightly wet, but definatly not plowing. As far as I can tell, water was streaming well- I have (2) pickups- the rudder pu and a Kintec trim tab pu.

Ran less than 2 min when it shut down. was able to bump it to shore, and when I got it open, smoke came out! I cooled everything off- batteries recharges (they were only down to 15.5 v,) and plugged everything back in. Esc took the arming, but the motor barely turns. What was my mistake?

[domwilson]

Sorry to hear about the ESC. You probably Over amp'd it. With the 2600 you should have probably went to 3s or propped down.

[dgfarb]

other than trying another motor- how do I tell if it's the motor or ESC?

[domwilson]

Usually you just substitute parts to verify which is bad. More than likely it's the ESC. How does the cap on the ESC look?

[soliverg]

Sorry to hear that dgfarb, smoke in a boat is never a good sign and usually comes from the speed controller. However if it still arms its sending the right signals to the motor and its the motor that beeps back. Id wait till you get the 2300 and check it then. I reckon its the motor if it turns a couple of times. However smoke is usually the ESC.

The funniest thing was trying to get my son to pick up the boat and put it into a kyack when it had a little bit of smoke coming out. I had him scarred of lipo batteries and water. There was no way he was going to put it in his lap and paddle into me quickly. He'd rater walk on water.

I currently have a similar problem, Not many of us have spare motors and esc's lying around to check. How do you tell is the motor has gone? I puffed an 180A esc when the shrinkwrap shrunk a bit and the motor wires touched. Swapped it with an Etti 150 HV esc and the 8xl arming was very quiet and the motor turned a couple of times when the trigger is pulled and thats it. Changed to the 9XL and alls good until it too died yesterday as I was bringing it in.

In my case im running a second hand 9xl with an Etti 150 hv on 4 s. and 6s. No smoke, batteries ok, std SV prop and prop wash pickup. The motor was hotter than I would like but not to the extent that it should die and become demagnatised.

With fresh batteries the motor dosent arm (that I can hear) but the prop turns a couple of times when the the trigger is pulled and thats it. Could the Speed Controller have become reprogramed when the LVC or BEC became low? or is it the motor thats been running too hot and died? I would have thought that the 150 with cap board should be more than enough and that wasnt even warm.

Are there any guidelines other than swapping parts?
Cheers

[dgfarb]

there is nothing obvious in looking at either the ESC or motor. I guess that I will have to wait. I am also waiting for a Hydra 120 to come back from warranty (different boat), I'll have to play with it then. I am still not sure what happened- how did I over amp it? I thought that I had the right (or at least safe size prop).

Soliverg, sounds like you have the same black cloud? I wish I had some solutions for either?

[Ctonez]

On 4S a well-worked 437/3 gets the Ammo 2300 hot after 6 min. on a loose setup. 40mm is way too much for 2600kv on 4S IMO. Motor is fine if it didn't get over 175 degrees. ESC is likely done.

If you're gonna try that setup again, get a prop shaft stepped down to 1/8 and try props 35mm and smaller. Check temps every 2 min's until you're sure the setup is running at a reasonable temp.

[badag98]

Check your solder on your leads, I had similar problems and as it turned out it was just a bad connection.

[dgfarb]

Check your solder on your leads, I had similar problems and as it turned out it was just a bad connection.

Without peeling back the shrink tube, everything seems ok as far as the solder goes.

as for CTONEZ's reply- I don't think I'll be trying the 2600 again, next plan is the 2300 w/ s/b x437/3

[dgfarb]

Check your solder on your leads, I had similar problems and as it turned out it was just a bad connection.

we have a winner! I went back and checked- 2 leads had come loose. resoldered and checked w/ the 2600- everything works fine. swap for the 2300 (used, which came today), and after swapping the bullets, it arms fine, runs med speed ok, but stalls after a second or so (dry). could it still be the ESC?

[BakedMopar]

I've had my SV motor blow smoke. ESC is fine and still kicking but the motor is toast. The windings in the can is black. It still runs but when it does smoke pours out of the motor.

[dgfarb]

ok, not to beat a dead horse, but I really need to figure out this issue. Tried running again, after 10 sec or it shuts down, and I bump it a few times to get it in. The motor is too hot to touch, and ESC is right behind it- does it make sense that the motor would get hot that quickly if the ESC is the problem?

[badag98]

are you getting water out your exit port? If not you need to check the water flow that could cause the over heating which will cause it to shut down and burn things up!

[dgfarb]

yes, definatly getting water flow- even w/o water, it should not have heated up that much that quickly

[badag98]

Have you check the alignment of the flex cable? If things are getting that hot something may be in a bind. Make sure the flex cable is turning freely and be sure to use plenty of grease.