Timing belt hits its cover

smokingslash · Post by **smokingslash** » 03 Sep 2009, 12:47

hi all
i have a 5254t and the timing belt has started to hit the top cover at idle.i removed the cover and noticed that at idle there ia a little slack in the beld between the two sprockets and goes a way as soon as i give it a little gas.every thing look ok and have changed the belt,idler,and tensioner but did not change the water pump.it was done in december.

any help would be great

brian

Post by **Ozark Lee** » 03 Sep 2009, 16:01

This sounds dangerous. Can you provide the year and model of the car? My guess is that you have a mechanical tensioner on a 5254T but with the year and model I can jump into VADIS to confirm that.

...Lee

smokingslash · Post by **smokingslash** » 03 Sep 2009, 18:34

here is a small video

i think the ticking is the injuctors,
the car is a 97 850 awd 2.4 mot 4.4.
the tensioner was changed in december and its a piston

thanks

Post by **Pauloil** » 03 Sep 2009, 18:41

sounds like bad bearing
I would take off acces. belt start the car and listen. See if noise goes away
the acces. belt tensioner could be bad or its idler

Post by **Brucebo** » 03 Sep 2009, 22:55

My first impression is that it's lost tension. You can check the tensioner by removing the front cover. I believe it's only one bolt thru the middle of the plastic cover. But you need to remove the serpentine belt to get access.

-Bruce

FCPEURO · Post by **FCPEURO** » 04 Sep 2009, 08:21

Brucebo wrote:My first impression is that it's lost tension. You can check the tensioner by removing the front cover. I believe it's only one bolt thru the middle of the plastic cover. But you need to remove the serpentine belt to get access.

-Bruce

+1, the tensioner is not holding tension anymore. The pull of the crank on the motor is what is causing the slack to come out. You can take the cover off without removing the serpentine belt.

smokingslash · Post by **smokingslash** » 04 Sep 2009, 20:02

thanks guys,
is there a way to test the tensioner?as i changed it in december and the old one was hard to close.

i will have to check but i picked up the oem timing kit.

Post by **Brucebo** » 04 Sep 2009, 20:54

smokingslash wrote:thanks guys,
is there a way to test the tensioner?as i changed it in december and the old one was hard to close.

i will have to check but i picked up the oem timing kit.

This may sound like a silly question but did you "pull the pin"?

-Bruce

smokingslash · Post by **smokingslash** » 05 Sep 2009, 07:47

was thinking the same thing but it a big pin. will open it up on sunday and check it out

brian

smokingslash · Post by **smokingslash** » 06 Sep 2009, 22:03

so today i removed the tensioner and had to use a vice to close it to put the pin back in it so i am not sure if this is the problem.
i was also able to slide the belt off the tensioner wheel,by the way the belt goes on i think any way i turn the belt it should be tight.
any one have a new tensioner go bad??

thanks brian