Volkswagen Workshop Service and Repair Manuals

Removing and installing inlet side balancer shaft Special tools and workshop equipment required

t  Puller -T10394-

t  Puller -T10055-   Note The balancer shaft must always be renewed after removing. Removing: –  Remove toothed belt for coolant pump → Chapter. –  Remove timing chain cover (top) → Chapter. –  Remove lower timing chain cover:    Passat CC → Chapter    Golf, Eos, Scirocco → Chapter    Tiguan → Chapter –  Remove camshaft timing chain → Chapter. –  Remove balancer shaft timing chain → Chapter.

–  Remove idler gear -1-.

–  Unscrew bolt -2- for inlet camshaft balancer shaft and pull out balancer shaft. If balancer shaft cannot be pulled out by hand, use puller -T10394-:

–  Insert shell half -T10394/1- from puller -T10394- and turns upwards in direction of arrow.

–  Insert puller -T10394- and push locking collar in -direction of arrow-.

–  Screw puller -T10055- into puller -T10394- and force out balancer shaft in -direction of arrow-. Installing   Note Due to the small amount of play between the balancer shaft and cylinder block, the balancer shaft may need to be installed chilled. Check whether the balancer shaft can be fitted into the cylinder block without exerting force. If this is not the case, the balancer shaft must be chilled before installing. l  Specified torques → Chapter. –  Place new balancer shaft in freezer compartment for 30 minutes or spray with commercially available chilling spray. –  Lubricate balance shaft bearing with engine oil.

–  Install new balancer shaft for inlet camshaft and tighten bolt -2-.

–  Renew O-ring -1- and lubricate with engine oil. –  Lubricate pivot pin with engine oil and insert -arrow-; pivot pin must engage in bore in cylinder block.   Caution The intermediate shaft sprocket must be replaced. Otherwise no tooth backlash is set - engine damage. The new intermediate shaft sprocket is coated with a solid film lubricant that wears off after a short period and thus automatically sets the tooth backlash.

–  Mark faces of gear teeth of idler gear with paint -arrows-. –  Insert idler gear; marking on balance shaft must be positioned between markings on faces of gear teeth.

–  Tighten bolt for chain sprocket -1-: tightening sequence → Fig.. –  Check markings on intermediate shaft sprocket/balance shaft -arrow-.   Note Due to the ratio, the markings only align after every 7th turn. –  Install balancer shaft module → Anchor. The remaining installation steps are carried out in the reverse sequence. Note the following: –  Renewing oil seal for coolant pump drive → Chapter.