2012 vs 2014 RXV Differences

basshawk84

I've had a couple of 2012 and earlier RXV's that all had the motor whine noise to various degrees. I just picked up a couple of 2014 RXV's that are extremely quiet. I know these are the first Curtis controller carts I've had, so is that why they are quiet? Just curious.

BGW

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BobBoyce

It might just be that they are newer, but it is also possible that they are not using the Dana Spicer rear transaxle. E-Z-GO switched to another transaxle supplier, and it is not clear exactly when they started using the newer transaxles. There may have been a transition where both were used on the assembly line for a period of time. With AC drive, a controllers ability to accurately simulate the 3 phase sinewaves can affect the level of audible noise coming from the motor during operation. I don't know how much difference the Danaher controller is from the Curtis controller when it comes to the 3 phase sinewave accuracy. I don't have an operating Danaher controlled RXV to compare against a Curtis controlled RXV.

basshawk84

Thanks for the reply Bob. A dealer friend of mine got 12 of these 2014's in and they all were quiet. I've got a neighbor that bought a 2012 RXV a few months ago and it's the loudest one I've heard. After getting my 2014, he's wanting to know what he can change to make his quiet.

BobBoyce

A few of the guys here have tried changing bearings and diff lube with no luck. At least 2 have replaced the rear transaxle with new from E-Z-GO and it quieted the noise. It's an expensive alternative to the noise, but some value their silence enough to spend the money. My RXV Shuttle 2+2 has a noisy transaxle, but I'm used to it. I don't drive it much right now, waiting for a new onboard charger to arrive. I've been using a pair of 12V chargers and swapping them back n forth to keep the batteries topped off until then.

cgtech

I think what happened is that Dana sold their Dana 12 axle production to a place called Schaffer. It seems to be totally identical internally, except the pan now has a little flat spot inside for a magnet to go. All the old parts still fit.