[LCML] RES: Need help with a FJ80 head sctratcher!

[David Brew]

Aligning and balancing the wheels wouldn't hurt either.....

 

De: lcml-bounces at tlca.org [mailto:lcml-bounces at tlca.org] Em nome de Kyle
Moosmann
Enviada em: 03 November 2010 11:14
Para: lcml at tlca.org
Assunto: [LCML] Need help with a FJ80 head sctratcher!

 

I know that most of you are 40 gurus but I am hoping that you also know more
about 80's than apparently I do.

 

This one is a real puzzler, not only for me but for a few others that are
trying to help me on this.

 

1995 FJ80, automatic with front and rear lockers

 

I bought the car out of state, had a lift put on it (3 inch suspension lift)
by a friend that knows these things backwards and forwards, and had it
shipped to me.

 

Here are the symptoms. When you get about 35 miles per hour and above and
you either press the accelerator, or let off it I get a grinding/vibration
noise. I think it sounds more like vibration. So you press the gas and it
vibrates, stops when the speed levels out and then vibrates again when you
let off the gas. It is a pretty loud noise. I drove it to work today (it is
my sons car and so I don't drive it much) and found out that while it is
vibrating, if you are going over bumps on the freeway, the noise
increases/decreases as you go over the bumps (hope that makes sense). 

 

Here is what we have done so far.

 

Greased the u-joints

Checked the u-joints

Had the drive shafts checked for correct balance

Took the front end apart and re-greased the knuckles

Checked the pinion bearings for play and wear

Locked the center diff and ran it with the front drive shaft off, still made
noise

Did the same with the rear drive shaft off, still made noise.

I have checked everything I can think of for looseness, nothing...

 

The last person who checked it out for me says it could be the T-case as it
is really the only thing left. It does have 186,000 miles on it so that
could be the case. But I really don't feel it much in the T-case when you
are driving, it is making the noise and you place your hand on the shifter. 

 

Anyway, I know it is real tough to imagine this without actually being hear
and listening to it but I thought it worth the try just in case someone else
has run into this.

 

Let me know if you need more info on anything. I will take any suggestions
you might have.

 

Thanks for the help.

  _____  

Esta mensagem foi verificada pelo E-mail Protegido Terra.
Atualizado em 02/11/2010

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