Esc keeps coming de-soldered

[yfzbrad]

Anybody have any input on why the red wire on my esc keeps melting the solder on the connection at the battery? I know I did a good job soldering the connector on. It is the stock proboat 45amp esc and I have 5.5mm bullets on everything... Running 5000mah 50c 2s packs with a grim 42x55. This is very frustrating. I run about 3 minutes and done. Time to go swimming. all other temps are right around 100.

[yfzbrad]

Sorry... I am using 60/40 tin to lead solder.

[Heaving Earth]

Try adjusting your strut. Where is it at now?

[yfzbrad]

Try adjusting your strut. Where is it at now?

I was told to set the boat on a level surface and set up the strut parallel to the hull. So that's where it is at now.

[Heaving Earth]

Try raising it up 3/16 above the bottom of sponsons

[Heaving Earth]

Also, You should make sure esc wires are same length as eachother. Same goes for battery wires. Ex. You don't want red and black wires from esc to be different lengths

[yfzbrad]

Try raising it up 3/16 above the bottom of sponsons

I am willing to try anything... All the wires are the same length. Just out of curiosity what effect does the little changes on the strut have on the wires? Just so I can wrap my head around what i am doing.

[dana]

having the prop buried can cause the motor to have to work harder = wires and plugs heat up quick.
you dont want the motor to work so hard to move that prop. having it raised will obviously ease up the load the prop is putting on the motor, and will in turn cause less heat on the connectors and wires.

[MORIDE]

It is hard to say, obviously you are getting hot, have you resoldered it many times? You might try soldering it directly and see what happens.

Sent from my Nexus 7 using Tapatalk 2

[yfzbrad]

Its not the esc to motor wires... its the battery to sec wire...ran again yesterday 30c batteries fine... 50c bullet came in soldered again. 5.5 should be able to handle it so I am lost.
.

[yfzbrad]

Stupid phone... esc not sec... sorry.

[roadrashracing]

try propping down and see what happens

[MORIDE]

Well throwing out random thoughts, try propping down but you should not be having that prop on stock 4S setup. Have you tried diff 5.5 bullets? Are you bullets a tight fit? Is the drive system free no binding? Strut set even with pads? Shaft/Cable greased well? They do make larger bullets. Are you settings correct for the PB ESC? Do you have the program card? Have you moved the motor, if so make sure collet isnt hitting bracket. Water running thru the cooling system well? Is it always the same 50C battery or has it done it with several diff ones?

[roadrashracing]

my 4s setup gets hot with that prop to when I had it.

[dana]

Did you move strut up? Also shorten your runtime. Real simple

[lenny]

Hey,
Do you have any pictures of the boat and hardware on it inside and out ?
Is the 42x55 props sharped and balanced ?
And what make is the 50c cells ?

[yfzbrad]

[QUOTE=lenny;441690]Hey,
Do you have any pictures of the boat and hardware on it inside and out ?
Is the 42x55 props sharped and balanced ?
And what make is the 50c cells ?[/QUOTE,,

I can put some pics up later when I get back home.... but the packs are gens ace... and all the connectors are castle creations 5.5 bullets stock motor and esc

[yfzbrad]

And yes the prop is sharpen and balanced.

[yfzbrad]

I moved the strut up and ran it with 30c packs and I ran the whole packs down to cut off... no melting... 50c packs connector melts off. I maintain my boat to a t. All connectors are tight. And like I said all the other temps are right around 100. I just ordered a seaking 120 so we will see what happens. Thank you everyone foe your input. It just seems like the esc should go first before the connectors.

[lenny]

Ok that will help,
On a two minute run what are the temps at the 5.5 bullets at all connectors ?
Can you try the 50c packs in something else ?
Are they 50c hard packs ?

[ray schrauwen]

How much difference in weight are the 50C from the 30C?

If they are heavier, putting them further back may help a little. The weight may increase amp draw. Check your radio to see if it is at full 100% end point?

Just diggin' .

[ray schrauwen]

I think maybe the smaller esc wires are choking off current??