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Re: Chassis vibration - Need help

To: "Phil Nase" <nase@ptd.net>
Subject: Re: Chassis vibration - Need help
From: rrengineer@dslextreme.com
Date: Sun, 1 Oct 2006 11:01:22 -0700 (PDT)
I'd like to know if anyone else has this problem also.  After my new 5
speed installation, I get vibration under decelleration when I let off the
gas and use the negine to slow the car down.
Mike MacLean
60 Sprite
56 BN2


Phil Nase
> I have a vibration in the chassis since my 5 speed installation.  It's a
> rumble that seems to get worse as I accelerate and not so bad when not
> under
> load.
>
> I could learn to live with it but I also don't want to cause harm if I
> don't
> fix it.  I need to find out whether its engine speed or driveshaft related
> and I don't know how to isolate it.
> Should I disconnect the driveshaft?
>
> The driveshaft definitely exits the tunnel with an offset to the right
> side
> and I have more rear oil leakage than I had before.
>
> My header and exhaust pipe joint is close enough to the floors now to bang
> a
> little when starting the engine but I don't hear it afterwards.  I have
> very
> small amount of clearance there I can see when under the car but with me
> in
> the car it could be up against the floor.  Would this cause a vibration
> that
> would be felt through the seat and the steering wheel?  It's not an
> audible
> vibration but one that I can feel.
>
> Phil Nase
> Quakertown, PA
> http://home.comcast.net/~philnasecpa




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