V50 AWD L5-2.5L Turbo VIN 68 B5254T3 (2005)
Drive Belt: Customer Interest
Engine - Drive Belt Wear/Tensioner Seizure
NO: 21-27
DATE: 4-18-2008
MODEL: C30 / 540 / V50 / C70
YEAR: 2004 -
ENGINE CODE: 38, 39, 67, 68
SUBJECT:
Correct Auxiliary Belt Tensioner Alignment
NOTE!
If this is a printed version of a TNN, first check for the latest online version.
Description:
It has been found that a misalignment of the auxiliary belt tensioner can cause noise, damaged belt or tensioner seizure.
Cause:
Contact between inner and outer belt tensioner.
Service:
Follow inspection and adjustment procedure below.
Note!
Some variation in the illustrations may occur, but the essential information is always correct.
For removal/installation of the auxiliary belt, see:
Removal, replacement and installation
Engine with mountings and equipment
Engine
Transmission
Checking belt tensioners
The outer/lower belt tensioner has a substantial amount of play between; screws, screw holes, locating pins and holes for locating pins.
This can cause contact between outer and inner belt tensioners.
The distance must be 2.5 mm (0.09 in), but can vary between 0 and approximately 3 mm (0.0-0.11in)
The image shows correctly installed belt tensioner.
The distance between the inner belt tensioner and the deflection limiter on the outer belt tensioner should be 2.5-3.0 mm(0.09-0.11 in). Check the
distance using a feeler gauge.
The image shows incorrectly installed belt tensioner.
The deflection limiter on the outer belt tensioner is against the inner belt tensioner.
Remove the outer auxiliary belt.
Adjust the belt tensioner's position by removing the screw for the outer belt tensioner and installing it according to the next step.
