New TP motor only a few runs shaft spun out?

[kfxguy]

This would surprise me. Especially with the commitment that some have made to their products of late. I know we're just a spec of the market but still.

Plus, I'm pretty sure the guy that runs TP is a boat racer himself. He's going to produce products he can't endorse? Not likely. I'm inclined to not believe this "not for boats" claim until I hear it from them directly.

This is why I emailed him. I hate to think that this would not be a budget option for me as far as motors go. I was going to buy a 4060 soon.

[bayareaheli]

Sooo... this is not good! If TP are saying (and it would be great if someone from TP can confirm) that their motors are no longer suitable for boats then I guess it's back to Leopards. From an engineering standpoint, an electric motor should be able to be stalled without the rotor spinning on the shaft. If TP have been manufacturing a product that would mechanically fail a simple stall test then they need to rethink what they are doing!

Shame, shame, shame on them!

Most companies that have good products work on improving the product, even if it costs a little more, consumers will pay for good products. Sack the idiot that came up with that plan, get it right and care for your customers, or refund them their money in full!!

I cant confirm what he posted is true. i was just showing what was mentioned on another thread. i wouldn't jump to any conclusions yet, my guess is i just got a bad apple out of the bunch.

[bayareaheli]

I just emailed to power usa with a link to this thread. Hopefully they will clear some of this up and take care of the op. I don't see why they wouldn't.

Thanks Travis, i'm sure they will i'm going to give the new one another shot because it did run very well.

[bayareaheli]

No mention if thrust bearing is used or not, my guess is that it wasn't used. That should have no bearing ( no pun intended) on this issue.

correct no thrust bearing used.

This would surprise me. Especially with the commitment that some have made to their products of late. I know we're just a spec of the market but still.

Plus, I'm pretty sure the guy that runs TP is a boat racer himself. He's going to produce products he can't endorse? Not likely. I'm inclined to not believe this "not for boats" claim until I hear it from them directly.

I agree

This is what I thought. ( have been having good experience with their 36xx motor)
Interesting to see what the Germans are saying, still, too early at this time to jump to conclusion. Hopefully someone will shed some light on this matter. One thing is for sure, they have changed and I wish they had held onto their older version.
If ( and I am pretty sure it is) this is a cost cutting measure to change to the present version, then TP is not alone, it is a global practice.

^^^ Ridiculous post.

lol rockstar

[ray schrauwen]

There is also HET and NEU motors besides TP and Leopard. HET is slightly more than a TP but, far better than both TP and Leopard.

[Peter A]

I cant confirm what he posted is true. i was just showing what was mentioned on another thread. i wouldn't jump to any conclusions yet, my guess is i just got a bad apple out of the bunch.

Agreed, we need confirmation. After all this is just one Germans' posting. It could just be there was a bad batch of rotors made.

[Peter A]

There is also HET and NEU motors besides TP and Leopard. HET is slightly more than a TP but, far better than both TP and Leopard.

For those in the antipodes it can be difficult and costly to get good motors, esc's, hulls, hardware etc. There is no one stocking any good (FE) boat stuff in NZ, so you have to buy in from overseas, and the shipping really racks up the cost.

[Spartanator]

Wow! And to think this morning I was actually going to buy this same motor for a budget build. Not now.

Ha, I was going to as well... For a 34" boat..... lol

I built a Rivercat for Spartanator with one of these motors and ran an m645 prop and the shaft did not slip. I think these motors are hit or miss because this isn't the first one I've seen so this. I haven't experienced it myself however.

I will shoot an email to the new owner asking if he has ran it yet..... I miss that boat.

[kfxguy]

Ha, I was going to as well... For a 34" boat..... lol

Ooooo no your not!

[tlandauer]

Ha, I was going to as well... For a 34" boat..... lol



I will shoot an email to the new owner asking if he has ran it yet..... I miss that boat.

Ooooo no your not!

[Spartanator]

Ooooo no your not!

lol
Fine.

New owner replied to me email. Still frozen up there....
He said he would use it in a couple of weeks.
I guess it hasn't been ran since December.

[kfxguy]

Lol. That hull deserves a nice motor :)

[ray schrauwen]

Fastelectrics went bust, I though you had a Neu dealer there, sorry mate.

For those in the antipodes it can be difficult and costly to get good motors, esc's, hulls, hardware etc. There is no one stocking any good (FE) boat stuff in NZ, so you have to buy in from overseas, and the shipping really racks up the cost.

[Quietlee]

Originally Posted by tlandauer
No mention if thrust bearing is used or not, my guess is that it wasn't used. That should have no bearing ( no pun intended) on this issue.

[QUOTE=bayareaheli;621796]correct no thrust bearing used.

A thrust bearing may have only delayed the issue. From what happened with the motor, it would have failed at some point or another. With all of the thrust being provided by the prop, and that thrust being transfered to the shaft and all the way up to the motor, you'll have to admit that there is a lot of force being applied to the motor. It just makes sense to remove those forces with a device designed for that purpose - a thrust washer.
Also have to make sure that the drive dog was not up tight against the strut when it was being run. The flex shortening under load will also pull on that shaft. Not sure if that question was being asked as well.

[bayareaheli]

There is also HET and NEU motors besides TP and Leopard. HET is slightly more than a TP but, far better than both TP and Leopard.

First time I have heard of HET will have to check those out aswell. Do they make one big enough for a 48inch mono hull?

Agreed, we need confirmation. After all this is just one Germans' posting. It could just be there was a bad batch of rotors made.

TP sounds like a pretty reputable company from what been reading from other threads and forums, also on their website it does mention for boat use so i'm pretty sure it was a fluke imo. I hope lol

[QUOTE=Quietlee;621911]Originally Posted by tlandauer
No mention if thrust bearing is used or not, my guess is that it wasn't used. That should have no bearing ( no pun intended) on this issue.

correct no thrust bearing used.

A thrust bearing may have only delayed the issue. From what happened with the motor, it would have failed at some point or another. With all of the thrust being provided by the prop, and that thrust being transfered to the shaft and all the way up to the motor, you'll have to admit that there is a lot of force being applied to the motor. It just makes sense to remove those forces with a device designed for that purpose - a thrust washer.
Also have to make sure that the drive dog was not up tight against the strut when it was being run. The flex shortening under load will also pull on that shaft. Not sure if that question was being asked as well.

I just ordered a 5mm thrust bearing from OSE for when I get a replacement, as for a gap for flex shrinkage under load yes I did, had about a 3/16 gap and a teflon washer between the drive dog and strut.

What was wierd is that I didnt notice any slippage on the previous run, and on the run where the shaft came loose I had just started a lap on the course and around the first lap around the second set of buoys I was getting back on the throttle and it was like the boat hit an instant neutral gear and stopped, I figured it will slip a bit then do that.