U-joints _require_ that the transmission be parallel to the rear-end
pinion shaft. They can of course be offset, but the input and output
shafts must be parallel to each other. You get vibration otherwise.
Is the input shaft parallel to the output shaft?
Bill D.
On 6/9/2014 5:49 AM, Pestka, Dennis J via EV wrote:
Removed the drive shaft, had new u-joints installed, and had it balanced.
No change.
I’m guessing it’s either the angle on the motor/transmission in relation to the
rear end, or
I may have to pull the motor/flywheel/pressure plate/clutch assembly and have
it balanced.
When I sit in neutral and rev to ~ 3000rpm, I’m getting some vibration,
although it doesn’t seem to be as bad as when I drive.
Here again I feel it at ~ 50 mph and up, but it is really noticeable when I let
off the accelerator at those speeds.
Thanks;
Dennis
Elsberry, MO
http://www.evalbum.com/1366
http://evalbum.com/3715
From: Daniel Busby [mailto:busby.dan...@gmail.com]
Sent: Tuesday, May 27, 2014 1:52 PM
To: Pestka, Dennis J; Electric Vehicle Discussion List
Subject: Re: [EVDL] Vibration
I'd try balancing your driveshaft. It's relatively inexpensive once you get it
out. A local place in LA costs less than $70.
My '64 Spitfire definitely has a wobbly shaft, but I haven't made the time to
pull it out and get it balanced yet. I stick to surface streets in the
meantime.
On Tue, May 27, 2014 at 11:29 AM, Pestka, Dennis J via EV
<ev@lists.evdl.org<mailto:ev@lists.evdl.org>> wrote:
Didn't know if anyone had any clues to a problem I'm having.
Since I have my new Lithium pack, I've getting my 65 Datsun out on the highway
and up to ~ 60 mph. Never did much of that before.
When accelerating, I don't experience it, but when I let off the accelerator,
I'm getting a pretty good vibration.
Step back on the accelerator, and it goes away.
Don't seem to notice it at 45mph and lower, but when going 55 - 60 mph.
I just put new tires on it, and have had the front end aligned.
Any suggestions ?
Thanks;
Dennis
Elsberry, MO
http://www.evalbum.com/1366
http://evalbum.com/3715
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