Re: [EVDL] FW: Vibration

2014-06-10 Thread Pestka, Dennis J via EV
Michael; See Inserts. Thanks; Dennis From: Michael Ross [mailto:michael.e.r...@gmail.com] Sent: Monday, June 09, 2014 3:27 PM To: Pestka, Dennis J; Electric Vehicle Discussion List Subject: Re: [EVDL] FW: Vibration Dennis, If it was any ICE car, where there is no DIY drive train stuff

Re: [EVDL] FW: Vibration

2014-06-10 Thread Pestka, Dennis J via EV
with differentials. Can you give me any tips on tackling this. Thanks; Dennis Elsberry, MO http://www.evalbum.com/1366 From: Joe [mailto:jya...@gmail.com] Sent: Monday, June 09, 2014 4:34 PM To: Pestka, Dennis J; Electric Vehicle Discussion List Subject: Re: [EVDL] FW: Vibration Dennis, The vibration

Re: [EVDL] FW: Vibration

2014-06-09 Thread Michael Ross via EV
Dennis, If it was any ICE car, where there is no DIY drive train stuff to distract one, I would ask them to check the tire balance once again. It is entirely possible a balance weight popped off. Or they forgot to balance one of them. I speak from experience here. At one time I used to

Re: [EVDL] FW: Vibration

2014-06-09 Thread Terry Forfa via EV
Dennis, Maybe loose wheel bearings? Check the Chilton Vibration Checklist link below: http://www.procarcare.com/includes/content/resourcecenter/encyclopedia/ch04/4fig15.html Terry -- From: Pestka, Dennis J via EV ev@lists.evdl.org Sent:

Re: [EVDL] FW: Vibration

2014-06-09 Thread Mark Grasser via EV
the next part it is connected to. Mark Grasser -Original Message- From: EV [mailto:ev-boun...@lists.evdl.org] On Behalf Of Terry Forfa via EV Sent: Monday, June 09, 2014 5:44 PM To: Pestka, Dennis J; Electric Vehicle Discussion List Subject: Re: [EVDL] FW: Vibration Dennis, Maybe

Re: [EVDL] FW: Vibration

2014-06-09 Thread Cor van de Water via EV
; Electric Vehicle Discussion List Subject: Re: [EVDL] FW: Vibration Dennis, If it was any ICE car, where there is no DIY drive train stuff to distract one, I would ask them to check the tire balance once again. It is entirely possible a balance weight popped off. Or they forgot to balance one

Re: [EVDL] FW: Vibration

2014-06-09 Thread Dennis Miles via EV
-boun...@lists.evdl.org] On Behalf Of Michael Ross via EV Sent: Monday, June 09, 2014 1:27 PM To: Pestka, Dennis J; Electric Vehicle Discussion List Subject: Re: [EVDL] FW: Vibration Dennis, If it was any ICE car, where there is no DIY drive train stuff to distract one, I would ask them

Re: [EVDL] FW: Vibration

2014-06-09 Thread Joe via EV
Dennis, The vibration characteristic you describe is common with involute spline connections (I've seen this here at work). When splines are loaded, the male spline is centered in the female spline by the tooth loads. Run the same set unloaded and this natural centering ability goes away. Now,

Re: [EVDL] FW: Vibration

2014-06-09 Thread Terry Forfa via EV
, 2014 8:49 PM To: Dennis Miles dmiles33...@gmail.com; Electric Vehicle Discussion List ev@lists.evdl.org Subject: Re: [EVDL] FW: Vibration Dennis, I didn't originally see the part about the vibration happening when in neutral and vehicle stopped... Have you checked you motor mounts? The motor

Re: [EVDL] FW: Vibration

2014-06-09 Thread Dennis Miles via EV
Joe, You said, The vibration characteristic you describe is common with involute spline connections (I've seen this here at work). When splines are loaded, the male spline is centered in the female spline by the tooth loads. Run the same set unloaded and this natural centering ability goes away.

Re: [EVDL] FW: Vibration

2014-06-09 Thread Joe via EV
Oh, sorry - I was addressing the Dennis of the original email where he mentions that the vibration is worse when it is unloaded - See below. On Mon, Jun 9, 2014 at 12:55 PM, Pestka, Dennis J via EV ev@lists.evdl.org wrote: The shocks are new, but I'll take a look. I don't know if this means