is my Hydra 120 fried??

[fastxturtle]

Ok my SV was running good until everything stopped. The NEW hydra makes sound but won't engage the motor, it just turns irregular. So i thought i fried the motor but i hooked up another motor, and same thing. The hydra goes into programming as normal and my servo works fine hooked up as BEC. I have Ammo 2300kv and 2 5000mah Lipos. Any suggestion?

[Meniscus]

Do you have a Castle link for your computer? It could be the timing.
What prop were you running?
What do the caps look like?
Did you run this 120 in any other boat, even back 5-10 runs ago?

[fastxturtle]

no i don't have the link. Prop is S220. What is Caps? The wrap of the hydra melted a bit.. I just ran with SV Twice.

[Meniscus]

Caps = Capacitors

Looks like this:



Are they swollen, bulged, desoldered, or any other apparent damage?

[nate]

If the caps are fine, call the tech at CC, That dude can help ya out via Phone fast..

[D. Newland]

The ESC BEC should not be used for 4S setups. Remove the Rx red center wire from the plug and use a different Rx battery source.

I know you said NEW 120, but there is a chance that it's still programmed with the OLD 1.03v software. I got 2 new Hydra 240's direct from Castle in April and both were loaded w/the old 1.03v software. I would recommend getting a Castle Link or using someone elses to verify your software version.

Also check all 3 of the motor to ESC connections. If one of them is bad, the motor will studder.

Does the ESC smell or have any visible burn marks? Melting the shrink is a definite sign it got hot, but now that it's not working right with 2 different motors...could mean it needs to go back to Castle.

For whatever reason, something isn't right with your setup. Could be ESC timing being way off, running too big of a prop for that motor (what prop are you running?), your boat running too wet, on/off throttle too much, friction in the driveline, etc.

[D. Newland]

Just re-read and saw the prop...is that a Prather 220?

[fastxturtle]

yes and Caps don't look burned.

[Flying Scotsman]

Way too much prop, if it is running wet especially. This is my mantra will you guys stop running silly setups and burning up a lot of equipment at the expense of newbies enjoying and entering the hobby

Douggie

[fastxturtle]

Yea I'm not gonna run the S220 anymore. I also have X664 prop is this ok?

[z400]

S220 works great on the stock set up with 2 3700nimh packs.
Ive ran my SV with the S220 over 20 times and have never seen temps over 110 on anything in my boat.

[D. Newland]

IMO the 220 prop is too much for a 2300 kv ammo motor. That prop is very close to an X645. OK for a stock SV motor, but not that ammo.

I would guess that an X438, X637 would be more appropriate for that Ammo motor until you can get some testing done and determine your amp draw.

[jingalls007]

Yea I'm not gonna run the S220 anymore. I also have X664 prop is this ok?

You need to start smaller, maybe an m440, X637, X440/3 at the most for testing. feel temps after 30 seconds-1 minute run and see if anything heats up to much.

[egneg]

He doesn't have a stock setup - he is running an ammo 36/50/2300 a smaller motor with more rpm. I would think the motor would go first and maybe take the esc with it.

Edit: looks like others can type with more than 2 fingers - I still have to hunt and peck.

[fastxturtle]

Whats the difference between old programming and new?