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Author Topic: Motor Replacement time?  (Read 803 times)

ESokoloff

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Re: Motor Replacement time?
« Reply #15 on: May 07, 2020, 08:37:36 AM »

I think this behavior is quite common...my bike shows a consistent +30degF on motor temp relative to ambient after sitting overnight, and I believe I've read that others see similar behavior. 

I checked my 3 temperatures today & found them to be within 6°f of each other (2016 DSR).
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Eric
2016 Zero DSR

TheRan

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Re: Motor Replacement time?
« Reply #16 on: May 07, 2020, 09:17:39 AM »

I think this behavior is quite common...my bike shows a consistent +30degF on motor temp relative to ambient after sitting overnight, and I believe I've read that others see similar behavior. 

I checked my 3 temperatures today & found them to be within 6°f of each other (2016 DSR).
Is your motor pre-IPM? I know the IPM motors are meant to run cooler but the different construction could affect the temperature reading in some way.
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CessnaDriver

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Re: Motor Replacement time?
« Reply #17 on: May 07, 2020, 09:19:26 AM »

AFAIK, it's IPM. Thought all 2017s and beyond where IPM
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Alexandria, VA USA
2017 Zero SR   Previously: 2003 Honda VTX1800-C  and 1985 Yamaha Maxim XJ-700

ESokoloff

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Re: Motor Replacement time?
« Reply #18 on: May 07, 2020, 10:07:49 PM »

I think this behavior is quite common...my bike shows a consistent +30degF on motor temp relative to ambient after sitting overnight, and I believe I've read that others see similar behavior. 

I checked my 3 temperatures today & found them to be within 6°f of each other (2016 DSR).
Is your motor pre-IPM? I know the IPM motors are meant to run cooler but the different construction could affect the temperature reading in some way.

Per Zero’s spec’s (2016 DSR).....
Quote
Z-Force® 75-7R passively air-cooled, high efficiency, radial flux, interior permanent hi-temp magnet, brushless motor
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Eric
2016 Zero DSR

ESokoloff

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Re: Motor Replacement time?
« Reply #19 on: May 07, 2020, 10:08:30 PM »

AFAIK, it's IPM. Thought all 2017s and beyond where IPM
See above^^^^^
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Eric
2016 Zero DSR

TheRan

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Re: Motor Replacement time?
« Reply #20 on: May 07, 2020, 10:49:09 PM »

I know mine and Cessna's are IPM, it was introduced in 2016 but I'm not sure if it was immediate for all 2016 models.

I had work today so got a chance to get out on the bike, motor temp got up to 160°F with ambient temps around 70-75. It was only about a 10 minute ride, mostly 35mph or below with a short stint between 60-75mph (less than a minute) so it doesn't take much to get the temps up. Unfortunately I forget to get my thermometer on the motor after getting home.
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