General Maintenance & Repairs Leaks | Squeaks | Clunks | Rattles | Grinds

Wierd Noise under the hood in the Morning

Thread Tools
 
Search this Thread
 
Old 07-20-2009, 03:38 PM
  #1  
Staging Lane
Thread Starter
 
koz28's Avatar
 
Join Date: Mar 2006
Posts: 87
Likes: 0
Received 0 Likes on 0 Posts
Default Wierd Noise under the hood in the Morning

Hi,

I have a 1998 Z28 and the area where the pulleys are for the belt i have a squeeky noise every morning when i start the car. It seems to go away after 10 min of driving. Could it be a pulley that needs some lube? I can be in the car driving and still hear it echo of the side of another car so its pretty annoying. It is a brand new belt i had put on a few months back.

Thanks for your help
Old 07-20-2009, 06:10 PM
  #2  
10 Second Club
iTrader: (14)
 
RooRnZ28's Avatar
 
Join Date: Dec 2005
Location: Central California
Posts: 1,392
Likes: 0
Received 0 Likes on 0 Posts

Default

i had a similar problem, and it ended up being my alternator pulley. Take your belt off and spin all the pulleys individually to see which one it is.
Old 07-20-2009, 06:22 PM
  #3  
TECH Fanatic
iTrader: (3)
 
killagt's Avatar
 
Join Date: Dec 2007
Posts: 1,737
Likes: 0
Received 2 Likes on 2 Posts
Default

Originally Posted by RooRnZ28
i had a similar problem, and it ended up being my alternator pulley. Take your belt off and spin all the pulleys individually to see which one it is.
or spay some wd-40 to the pulleys while the car is running , if any of them is quiet down, then that the problem,
Old 07-20-2009, 06:31 PM
  #4  
TECH Fanatic
iTrader: (10)
 
eseibel67's Avatar
 
Join Date: Feb 2008
Location: Kitchener, ON
Posts: 1,780
Likes: 0
Received 4 Likes on 4 Posts

Default

DO NOT put WD-40 on your pulleys. It will damage your belts, and then the residual oil will damage your new belt.

Your problem is one of the pulleys. Now you just have to I.D. which one.

Last edited by eseibel67; 07-20-2009 at 08:33 PM.
Old 07-20-2009, 07:00 PM
  #5  
Staging Lane
Thread Starter
 
koz28's Avatar
 
Join Date: Mar 2006
Posts: 87
Likes: 0
Received 0 Likes on 0 Posts
Default

Thanks for all the reply's... i was gonna do WD-40, thought it made sense but thanks for letting me know that it could do damage
Old 07-21-2009, 01:12 AM
  #6  
TECH Fanatic
iTrader: (3)
 
killagt's Avatar
 
Join Date: Dec 2007
Posts: 1,737
Likes: 0
Received 2 Likes on 2 Posts
Default

Originally Posted by eseibel67
DO NOT put WD-40 on your pulleys. It will damage your belts, and then the residual oil will damage your new belt.

Your problem is one of the pulleys. Now you just have to I.D. which one.
Can you explaint to me how can, wd-40 damage the belts ? I been use it to find out squeak problem for every car I own, and run thru no problem.
Old 07-21-2009, 08:04 AM
  #7  
Staging Lane
Thread Starter
 
koz28's Avatar
 
Join Date: Mar 2006
Posts: 87
Likes: 0
Received 0 Likes on 0 Posts
Default

I would also like to know why wd 40 would damage the belt, also if i take this to the mechanic, what will be the solution? Do i have to buy a new pulley? or do they just lube it up? thanks
Old 07-21-2009, 09:29 AM
  #8  
Save the manuals!
iTrader: (5)
 
wssix99's Avatar
 
Join Date: Dec 2007
Location: Chicago, IL
Posts: 12,664
Received 322 Likes on 295 Posts

Default

Originally Posted by killagt
Can you explaint to me how can, wd-40 damage the belts ? I been use it to find out squeak problem for every car I own, and run thru no problem.
WD-40 is fine on belts http://www.wd40.com/faqs/#q8 but...

In general, the only thing WD-40 is really helpful for on a car is dissolving rust. http://en.wikipedia.org/wiki/WD-40 Its a penetrating lubricant and will dissolve other oils/greases. It is a lubricant, which is good, but it doesn't stand up to much and will wear down very quickly.

So, if you use WD-40 for lubrication, you'll find it will work OK initially but will wear away quickly and will either make your problem worse or cause you to go back often to re-lubricate.

For light duty (hinges, etc.) you should use an oil formulated for the purpose and for heavy duty (pullies, bearings, etc.) you should use a heavier grease.

If you search through the threads on this site, I recall seeing a good write up somewhere on how to re-pack the idler pully with grease and fix the squeaking problem.
Old 07-21-2009, 02:48 PM
  #9  
TECH Fanatic
iTrader: (10)
 
eseibel67's Avatar
 
Join Date: Feb 2008
Location: Kitchener, ON
Posts: 1,780
Likes: 0
Received 4 Likes on 4 Posts

Default

Originally Posted by killagt
Can you explaint to me how can, wd-40 damage the belts ? I been use it to find out squeak problem for every car I own, and run thru no problem.
I just read the WD-40 article. My mistake, I guess it's o.k. I assumed WD-40 had oil in it since it's a lubricant. Oil turns rubber into a black gooey mush.




All times are GMT -5. The time now is 05:16 PM.