Re: Transmission or Clutch?

[trnsfrma@ix.netcom.com (Shawn C. Meze)]

At 11:28 AM 7/22/97 -0400, you wrote:
>
>
>I've got a problem with my 88 16v.  It's making a wierd noise, which only
>happens under unusual circumstances.  The noise sounds like a rapid ticking,
>which varies in intensity and rapidity (good word, eh?) with wheel
>rotation.  It sounds a little like a piece of metal being whipped around, 
>it's not a 'good' noise.


OK, so to reword it to maybe bring out some details, the sound only happens 
when in gear and decelerating. The drivetrain is basically unloaded and in 
gear.
Whats up with the metal being whipped around sound? Does it sound like ice 
cubes in a blender with the occasional heavy chunk sound? (Eww if it is!) 


>Anyway, here's when/how it happens:
>
>When slowing down in gear it happens.
>Noise goes away if I push the clutch pedal down.
>Noise goes away if I pull the car out of gear, leaving clutch alone.
>Noise subsides if I rapidly steer the car from side to side while slowing.
>No noise at all when standing still, clutch in or out, neutral or not.
>(The combination that would actually _move_ the car not withstanding)
>The noise is almost non-existant when accelerating or it doesn't do it
>at all when accelerating.

hmm. Inconclusive. This is a toughy!

>Just today, I discovered that the noise MAY not happen at all in 1st gear,
>accelerating or slowing.  I will test more completely and get back here
>with results.  Opinions?  Broken syncro?  Differential?  CV joint?
>Broken clutch teeth? throw-out bearing?  Final drive?  WHAT!?! :-)
>
>Any advice at all is appreciated.  Thanks.
>
>==Brett


What about the rpm's? Does it make more or less of a sound in different rpm 
ranges? What about 1-2-3 gears? Obviously there will be more wind noise to 
drown out the sound so you wont really hear it in the higher gears but if it 
is making a bad noise it should be making it in 1st gear as well. (maybe) If 
so, it should give you a good idea as to whether or not its an internal 
tranny problem or just a drive axle issue. (CV maybe) 

How about just say maintaining 15mph? no sound but when you lift off of the 
throttle, its making sounds? (is that right?) 

Can you tell which side of the car its making the most noise from? 

How long has it been making the noise? 

Since you've noticed the sound, has it gotten worse? 

Dont ask me why but im suspecting one of the cv joints is going bad. It could 
be the inner CV but I dont think so.

Shawn
86' Jetta GLi
82' Scirocco GTi
The Fastest, Quickest, Cleanest and
best looking Scirocco in all of San Diego!
http://www2.netcom.com/~trnsfrma/vws.html

--
To subscribe or unsubscribe, send email to scirocco-L-request@privateI.com,
with your request (subscribe, unsubscribe) in the BODY of the message.