The official 36" zelos twin modding thread

[Mxkid261]

What size are they? I was under the impression they are 3/16 cables. Thats a pretty large diameter prop you were running, I doubt a 3/16 cable will last too long with a 52mm prop bouncing through waves getting unloaded/loaded but I could be wrong. I never run in rough conditions but Ive heard its hard on the driveline when that is happening

[Keagan-Z06]

3/16 but Rafael told me I should of been running atleast a 1/4" flex with that size of a prop. Too add to it I didn't balance the prop, attempted sharpening and polish but never balanced as I don't have a balancer. Lesson learned. I was gonna go with the abc 1915 I think it was but they were outta stock.

[kfxguy]

Yes cleaning the paint out was one of the first things I had done after the first run.

Abc 1816/3

That's ALOT of prop. How long did you run it and what were the temps like?

[forescott]

Anyone else check the amount of play in the motor shafts? I can grab my props and slide them in and out about 1/4". Seems like the prop thrust pushing against those motor bearings might cause excessive friction and wear, not to mention it almost looks like the collets are resting against the motor mounts when you press the prop shafts in all the way. Anyone else seeing this?

[arrover]

That's not right. I just measured play on a brand new Zelos 36 motor and its about half a millimeter. Have you been lubing the front bearings? I believe the recommendation is to lube them every day.

[JPriami]

That's ALOT of prop. How long did you run it and what were the temps like?

Oh for about 19 mins or 7.5 miles between 14.8 & 22.2v. It's on the gps data. Temps? Haha..they were ok to the touch, but the last run of packs it got pretty warm. Because I ran harder. Someone wanted to video. A spectator on a motorcycle.

Btw, I don't endorse any one using this prop.

[kfxguy]

Oh for about 19 mins or 7.5 miles between 14.8 & 22.2v. It's on the gps data. Temps? Haha..they were ok to the touch, but the last run of packs it got pretty warm. Because I ran harder. Someone wanted to video. A spectator on a motorcycle.

So you ran it for 19 minutes straight? Or were you making speed runs and bringing it in?

[JPriami]

Runs on sets of packs. High speed runs & cool downs. Not 19 mins strsight up. But that was total run time.

[forescott]

That's not right. I just measured play on a brand new Zelos 36 motor and its about half a millimeter. Have you been lubing the front bearings? I believe the recommendation is to lube them every day.

I've only run it once, I'll try to post a video

[forescott]

This doesn't seem right.

[arrover]

I watched your video and it's still hard to tell how far it's moving. Have you precisely measured it? What kind of play is in your other motor?

[Keagan-Z06]

How hard is it to change bearings? I too have some play on my voracity motor but I don't think it is as bad as the one above.

[arrover]

I think some play is normal. I'm just not sure how much play is to much.

[Rafael_Lopez]

This doesn't seem right.

That looks about right, wont harm anything. Once the motor is under load the cable will compress, shrink, and will pull the rotor shaft forward so the rotor rides against the front bearing. There are aluminum spacers in front and behind the rotor; in between the rotor and the bearings. This is why it's so important to keep that front bearing lubricated

What exactly is the concern? Just questioning if that is normal?


As to the cooling, this boat will not shoot a 6-8 inch stream of water out the side like most boats will. The intent of water cooling is to allows the water enough time to soak in the heat from the electronics. If the water passes too quickly through the system, this is not accomplished properly. I wouldn't be concerned until you see more than 140* on the ESC and close to 180* on the motor. These were the numbers given to me by the manufacturers. In addition, the ESC will thermal and shut down before it goes up in smoke.....don't know about you guys, but I cant tell if water is coming out the side off the boat at 60, lets not even talk about how hard it would be at 70+.

[forescott]

I think the collets were actually hitting the motor mount. I loosened the collets and moved them back about 1mm. I had uneven motor rpm on my first run so I thought the collet on one side may have been rubbing on the motor mount.