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Old 03-05-2008, 10:48 AM   #5956
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I would give the motor a thourough looking at before I hooked it up to anything... IE, take the front end bell off, check both bearings, look at the winds and check for debris inside hte motor.

Look inside at the sensor assembly, make sure it doesn't look like it has been corroded.

Once you're satisfied everything in the motor looks ok I'd say it's probably safe to hook up to another ESC and test.

For the most saftey and caution though I would send it back to us as a system to give the whole thing a once over...we might be able to catch something you miss.

Quote:
Originally Posted by HI_808 View Post
Hi Steve,

My friend gave me an early generation Novak GTB with a 4.5R motor. The ESC is water damaged, so I was planning on mailing it out to Novak for a replacement/servicing. I don't think that the motor was affected by the water incident, though.

Do you think it would be safe to hook up that 4.5R motor to a different GTB without replacing it or somehow testing it? Or should I send that back along with the ESC?

Thanks,
Ken
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Old 03-05-2008, 05:47 PM   #5957
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I know Novak offers trade-in services...

IF i wanted to trade my 13.5 (i have two, one is the older smooth can with sintered rotor and the other is the newer ribbed can with sintered rotor) for a 17.5, if possible, is there a charge invovled to do such a trade?
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Old 03-07-2008, 10:30 AM   #5958
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Steve,
What's your prefered Lipo battery charger/ blancer?
Thanks,
E
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Old 03-07-2008, 12:16 PM   #5959
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Hey Syber,

Sorry I didn't get back to you sooner.

You can check out all the details on our trade in plan here:

http://www.teamnovak.com/cs/web_opti...dex_motor.html

But the long and short of it is that if you want to trade your motor in for another one depending on what you trade in it will probably be $40-50 to exchange your motor for a new 17.5

Hope this helps!

Quote:
Originally Posted by Syber Serulean View Post
I know Novak offers trade-in services...

IF i wanted to trade my 13.5 (i have two, one is the older smooth can with sintered rotor and the other is the newer ribbed can with sintered rotor) for a 17.5, if possible, is there a charge invovled to do such a trade?
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Old 03-07-2008, 12:22 PM   #5960
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Eric,

I really haven't done a bunch of testing on alot of different chargers... but we use FMA Scorpion 2S chargers and we have a couple Hyperion EOS 5idp's

They both seem to get the job done and we haven't had any problems with them...

We tend to prefer the FMA charger because it has a balance plug.

Quote:
Originally Posted by EricF View Post
Steve,
What's your prefered Lipo battery charger/ blancer?
Thanks,
E
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Old 03-07-2008, 12:57 PM   #5961
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Ok, thanks,
E

Quote:
Originally Posted by Steve Weiss View Post
Eric,

I really haven't done a bunch of testing on alot of different chargers... but we use FMA Scorpion 2S chargers and we have a couple Hyperion EOS 5idp's

They both seem to get the job done and we haven't had any problems with them...

We tend to prefer the FMA charger because it has a balance plug.
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Old 03-07-2008, 01:11 PM   #5962
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I took a closer look at the motor and a transistor fell out Going by that my guess is it over heated and the hall effect sensor died, without the sensor maybe mt esc was getting a bad feedback and caused my wires to warm up / almost like a short.

Looks like I need a new 3.5, will pick up new this time




Quote:
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Hey Rich,

There are a number of things that could be bad that are causing your problems... but I think the one that is most likely is that a coil or coils might be shorted out in your motor if it had been made very hot from the previous owner.

You can take the front endbell off and check to see if the wires look ok physically... if they look burnt or melted...or the plastic near the wires looks melted there's a good chance something is shorted out.
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Old 03-07-2008, 01:16 PM   #5963
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Quote:
Originally Posted by RAP66 View Post
I took a closer look at the motor and a transistor fell out Going by that my guess is it over heated and the hall effect sensor died, without the sensor maybe mt esc was getting a bad feedback and caused my wires to warm up / almost like a short.

Looks like I need a new 3.5, will pick up new this time
This is why you should always use a plastic sleeve when installing the rotors. Without the sleeve, the shaft can hit the sensor board and do bad things to it.
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Old 03-07-2008, 02:21 PM   #5964
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Quote:
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Evo, it's HOT!

I will have to check on the exact value for you. Sorry I don't know it off hand.
TEMPs???? Where are my TEMPs??
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Old 03-07-2008, 02:36 PM   #5965
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Quote:
Originally Posted by Steve Weiss View Post
Hey Syber,

Sorry I didn't get back to you sooner.

You can check out all the details on our trade in plan here:

http://www.teamnovak.com/cs/web_opti...dex_motor.html

But the long and short of it is that if you want to trade your motor in for another one depending on what you trade in it will probably be $40-50 to exchange your motor for a new 17.5

Hope this helps!
Thanks...

but yuck. Any RMF 17.5's ready yet?
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Old 03-07-2008, 03:59 PM   #5966
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You can call and ask for Jackie, she should be able to see what we have in RMF stock...

949 833 8873

Quote:
Originally Posted by Syber Serulean View Post
Thanks...

but yuck. Any RMF 17.5's ready yet?
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Old 03-07-2008, 04:01 PM   #5967
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Quote:
Originally Posted by Unregistered View Post
This is why you should always use a plastic sleeve when installing the rotors. Without the sleeve, the shaft can hit the sensor board and do bad things to it.
I purchased the motor used, this was the first time I had it apart...
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Old 03-07-2008, 04:47 PM   #5968
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My Engineer told me approximately 220 F

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TEMPs???? Where are my TEMPs??
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Old 03-11-2008, 08:50 AM   #5969
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Ole Weiss one, once again I come to you for knowledge. What is the differance in the conventional GTB and the "Spread Spectrum" version? I notice people seem to only want the newer version. Please explain if other than on paper there truly is a differance. because now I'm starting to feel confused about them. Thanks again, Paco.
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Old 03-11-2008, 08:57 AM   #5970
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It is my understanding that the Spread Spectrum versions, since they are only supposed to be used with 2.4GHz radios, can switch the FETs faster. Doing this with a normal 27MHz or 75MHz radio will cause a lot of interference/glitching. I assume that the faster switching speed causes unwanted harmonics at the radio frequency.
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