a little water with that ESC?

[FE_Chris]

I smoked a OEM R 100Amp HV esc today. Long story short I had my boat going balls out 5 laps in, or maybe 2 minutes max, POOF! magic smoke was let out!

My setup has always pushed this ESC....But it has never gotten so hot you could not hold a finger on it....


I have to ask this, if you get a little water on the ESC and your WOT, will it smoke like this? I had more water than I like in the hull...not a ton, but it was sloshing around and the ESC was not protected. I wanna buy another, but not if im gonna smoke it out!!!!

Check it out! my 1st ever smoked ESC. It;'s kind of bitter sweet. lol

O yeah, and I raced and won my 1st race today! two first place and a DNF cause of a flip at turn one! LSO, racing my Titan 29. Racing has me addicted. so whats up with this ESC?

[Diegoboy]

Wow, That wasn't simply letting out the magic smoke. That was a magic smoke stampede.

[deestingray]

Yeah, ESC's don't like water very much, you get any at all on the FET's especially at full throttle and the magic smoke will appear for sure. Something that you could consider to alleviate the sloshing water in the hull is to get some of those wipe down sponges that you use in the kitchen and cut a couple of pieces out to fit in strategic places. It will absorb the sloshing water and hopefully protect your next esc.

[ED66677]

Holly smoke!!!

get a new one and apply bathroom silicon all around!!!

[FE_Chris]

I ordered another one this morning. Now I need to place a order here for a few other things lol

I am set on it got wet. I guess i'll see. I can tell you this, the 1st time I run with this new ESC I am gonna do 3 laps with a eagle tree, then bring it in and DL it to my lappy to see whats going on. I will be back :-)

[ReddyWatts]

How is the water getting in?

[Flying Scotsman]

Chris, spray the ESC with Corrosion X. This will help to make the ESC water resistant.

[FE_Chris]

Watts, the water comes in from the stuffing tube. The boats builder (not me) used a copper tube and no teflon liner....no room for one. Grrrr..... When I grease the piss out of it, it does not leak but hardly 2 drops. But I have to grease it every run for that.

Thanks scotsman. Im gonna have to put some of that in my order once steven gets the .130/3/16th flex cable kits back in stock! :-)

[ReddyWatts]

Cut a thin piece of your water cooling hose and put it in between your drive dog and strut around the prop shaft. Leave a little extra slack there. It will stop the water from going up the tube. Acts like a rubber seal. A rubber grommet will also work. I was having the same problem with no teflon liner in the tube and this stopped it. The boat stays dry now.
I now use "Purple Extreme" synthetic oil lubricant on the drive line. Doesnt need the heavy grease. Prop shaft turns more freely.

[steveo]

get a hydra there on sale and water proof water cooled and can handle what your running, i swear every time they go on sale i never have the money.

[FE_Chris]

Steveo! the hydra does'nt handle the volts I am looking for but thanks.

Thanks for the tip watts, thats a hell of an idea! :-)

[ReddyWatts]

Some one else gets credit for the water line suggestion. I was using a grommet.

Also use some heat shrink over the tube and front of your strut. If you do not leave enough slack it between the drive dog and strut it can tear the seal when the flex drive shrinks under load.

First picture uses water tubing and second has a grommet. Either way works.

[FLEETMASTER]

I had an OEMRC 80 fail from a bit of moisture while running fast,the Eagletree shows that the amps are high,but safe.Inspection shows white corrosion around the fets,so i'd say thats what cooked it too.