[Fot] vibration

[kkjjk at aol.com]

It's frustrating, Don-  Hope we both can figure it out!  Of course, the problem is that you may think you got it right, but don't know until the next event-  Jay

 

 

 

-----Original Message-----
From: don--- via Fot <fot at autox.team.net>
To: fot <fot at autox.team.net>
Sent: Sat, Jun 10, 2017 4:05 pm
Subject: [Fot]  vibration



I’ve had a very similar issue from the first time I drove my ’62 Spitfire down the front straight at TWS and on both straights at COTA.
Mine is more of a rumble that seems to start when I’m going flat out in fourth around 5-6K rpms.


I have had the drive shaft balanced and phased, swapped gearboxes, diffs and still it’s there.
My gearbox tail shaft has a strap going over it to help secure it in place. 
To me it feels like something in the rear. I was wondering if I had a wheel out of true or tire out of round.
Two things I haven’t swapped out.


Another thing I notice was one of my trailing arms, I can move with my hand and the other I can’t. 
They are heim joints. Was thinking maybe a toe out/in issue?


Could be the diff mounts as well, haven’t changed them out.


Don




DON COUCH PHOTOGRAPHY
www.dcphotos.com
(512)-680-3540


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