vibration

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amcfall
Posts: 11
Joined: Wed May 06, 2015 3:49 pm
Your car is a: 1981 Fiat 2000 anniversary

vibration

Postby amcfall » Thu Sep 24, 2015 3:47 pm

Hi everyone, when driving at high speeds my 1981 fiat is pretty smooth. When I am driving in my neighborhood around 25MPH I can feel vibrations and hear some slight knocking sounds over every little bump. It feels and sounds like it is coming from the front drivers side but who knows. There are also speed bumps and when I go over them I can hear a slight knocking sound coming from the front of the car. Any suggestions on where to start to diagnose the issue. Thanks!

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azruss
Posts: 3659
Joined: Sun May 30, 2010 12:24 pm
Your car is a: 80 Fiat 2000 FI

Re: vibration

Postby azruss » Thu Sep 24, 2015 4:13 pm

The first thing i would check would be driveline carrier bearing and pillow block. The rubber in the pillow block can get bad and allow the bearing to jump around. Next i would check the sway bar bushings.

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KevAndAndi
Posts: 531
Joined: Fri Oct 03, 2014 12:14 pm
Your car is a: 1981 Fiat Spider 2000
Location: Chatham, NJ

Re: vibration

Postby KevAndAndi » Thu Sep 24, 2015 4:41 pm

What azruss said.

I have wince-inducing rattles, many of which are probably due to sway bar bushings, lower control arm bushings, and the driveshaft carrier bushing, all of which I have visually confirmed as totally shot. I believe the latter is causing the "clunk" I hear when I start from a standing stop.

Other than the lower control arms which are on back-order, I am awaiting the arrival of the items that will alleviate my wincing.
Kevin
1981 Spider 2000

amcfall
Posts: 11
Joined: Wed May 06, 2015 3:49 pm
Your car is a: 1981 Fiat 2000 anniversary

Re: vibration

Postby amcfall » Thu Sep 24, 2015 8:44 pm

Thanks to you both. I will check it out.

ekstrandt
Patron 2019
Patron 2019
Posts: 92
Joined: Sat Mar 01, 2014 9:39 am
Your car is a: 1985.5 pininfarina
Location: Fayetteville, NC

Re: vibration

Postby ekstrandt » Mon Sep 28, 2015 4:40 pm

Upper and lower ball joints? Flat spots on rim(s)?


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