Hey guys,

I have noticed some clicking noise with a slight whine that seems to come from my rear end when I do low speed tight turns, i mean real low speed like under 5mph. Is this normal? Is this common with possy rear ends? Let me give you my cars specs:

1987
928 S4
5 Speed Manual
32k Miles

Let me know your thoughts, thanks.

Dash~

 

My first thought would be CV joints

 

Does 'possy rear end' imply LSD , as in Positraction (C by somebody?) Possible for lsds to make a noise, but a cv joint would be my bet also.
jp 83 Euro S AT 49k

 

yeah sorry LSD, I have to many cars!

Okay, the ticking noise always seem to be coming from the outside tire in the turn.. meaning if the car is stopped and i make a hard left, the noise comes from the back right wheel, and visa-versa if i turn the car right noise comes from the back left wheel.

Dash~

 

CV joint.

If it just started you can re-pack and re-boot it, and it'll be fine.

Anyone know of a manufacturer that makes split-CV boots for 928s?

I hate the one piece designs, too much work. LOL.

 

You think my CV needs fixing? only 32k miles on it.

I was hoping someone would say something around the lines that the ticking noise are clutch plates kinda rubbing one another. since the outside wheel at that point with slow speed is turning faster than the inside wheel.

Dash~

 

The ticking noise are clutch plates kinda rubbing one another. since the outside wheel at that point with slow speed is turning faster than the inside wheel.


How's that?

 

I had the same thing happen to my 82. I replaced both axel shafts and still had clicking. I went to the auto parts store and bought a 8oz bottle of Friction Modifier and put it in the rear end. Problem solved. Try this before you spend a lot of time and labor.

 

My LSD makes no such noises.

 

Nor mine.
jp 83 Euro S AT 49k, with LSD

 

check the e-brake springs holding the pads (shoes) in place. have someone drive your car around you at walking speed and see if you hear it. the springs can brake and end up griding and clicking against the hub.
mk

 

First check has to be the CV joint boots. If these are split -look for splattered black grease (which is an age factor not a mileage factor) then it will be CV joints.

 

Thanks everyone, going to take a closer look at it this afternoon. I'll keep you updated.

Dash~

 

My money's on the diff - if it is, its nothing to worry about and a fluid change should fix it. Does it still have the factory fill?

 

He's saying it switches sides when he turns the other direction. And 32K is awfully low for CVs unless both have been run dry -- possible to have both go at once, but unlikely.