Engine 850: B5234TR/2.3/20v/T5R: - Belt squeak

T-5rrrr · Sep 6th, 2010, 17:34

Hi
A short time ago i replaced the timing belt on my 850, doing everything by the book i used dealer parts replacing jockey wheel and tensioner for good measure. When building the car back up i noticed the serpentine belt was a bit worn so replaced this too with a spare that came with the car, now when the engine warms up it starts to squeak.

I tried a little experiment by applying a small amount of grease to the back of the serpentine belt while engine was running and the squeak stops for a short while then starts again. On closer inspection i have noticed that the belt seems to run slightly over the inside edge of the tensioner and idler pulley putting a slight groove in the belt.

Can the pulleys be adjusted or is the belt too wide? it seems to sit on the other pulley's just fine.

The squeak is starting to drive me nuts! can somebody please help?

Many thanks
Mark

rtz62 · Sep 6th, 2010, 17:56

Wouldn't suggest you apply WD40 etc, I think this need proper investigation to ascertain the root cause. It could be a bearing, but I think that it would be a fools errand to spray the belt...

Sep 6th, 2010, 17:34	#1
T-5rrrr New Member Last Online: Apr 27th, 2014 15:29 Join Date: Aug 2006 Location: EXETER	Belt squeak Hi A short time ago i replaced the timing belt on my 850, doing everything by the book i used dealer parts replacing jockey wheel and tensioner for good measure. When building the car back up i noticed the serpentine belt was a bit worn so replaced this too with a spare that came with the car, now when the engine warms up it starts to squeak. I tried a little experiment by applying a small amount of grease to the back of the serpentine belt while engine was running and the squeak stops for a short while then starts again. On closer inspection i have noticed that the belt seems to run slightly over the inside edge of the tensioner and idler pulley putting a slight groove in the belt. Can the pulleys be adjusted or is the belt too wide? it seems to sit on the other pulley's just fine. The squeak is starting to drive me nuts! can somebody please help? Many thanks Mark __________________ Last edited by T-5rrrr; Sep 6th, 2010 at 17:36.

Sep 6th, 2010, 17:56	#2
rtz62 Junior Member Last Online: May 7th, 2011 14:06 Join Date: Sep 2010 Location: Gods Own Country. Apparantly. View Photos By: rtz62	Wouldn't suggest you apply WD40 etc, I think this need proper investigation to ascertain the root cause. It could be a bearing, but I think that it would be a fools errand to spray the belt...

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)