Volkswagen Workshop Service and Repair Manuals

Checking compressions

Notes:

• ◆ When installing an exchange cylinder head with fitted camshaft, lubricate running contact surfaces between bucket tappets and camshaft cam surfaces before installing cylinder head cover.
• ◆ The plastic packing pieces for protecting the open valves must not be removed until immediately before fitting cylinder head.
• ◆ If the cylinder head is replaced, all the coolant in the system must also be renewed.

• Cover
• O-ring
• ◆ Renew
• Hall sender (G40)
• 9 Nm
• To intake hose
• Shape hose
• ◆ Do not separate shape hose-intake hose
• To intake manifold
• Seal
• ◆ Fitted firmly onto -item 9 -
• Sealing plug-15 Nm
• ◆ Renew

• Cylinder head bolt
• ◆ Renew
• ◆ Removing and installing Polydrive cylinder head bolt with 3452
• ◆ Sequence when loosening and tightening => page 15-21 , Removing and installing cylinder head
• Union
• ◆ Coolant hose connection diagram => Page 19-11
• 10 Nm
• Seal
• ◆ Renew
• 20 Nm
• Lifting eye
• Cylinder head gasket
• ◆ Renew
• ◆ After replacement renew the entire coolant

• Cylinder head
• ◆ Check for distortion => fig. 1
• ◆ Reworking sealing surface
  , fig. 1
• ◆ Removing and installing
  => Page 15-21
• ◆ After replacement renew the entire coolant
• 15 Nm
• Rear toothed belt guard
• 20 Nm
• Washer
• ◆ Note Part No.
• Toothed belt
• ◆ Mark direction of rotation before removing
• ◆ Check for wear
• ◆ Do not kink
• ◆ Removing, installing and tensioning
  => Page 15-7

• O-ring
• ◆ Renew
• Inlet camshaft timing adjustment valve (N205)
• ◆ is controlled by the engine control unit
• 9 Nm
• Oil deflector
• Cylinder head seal
• ◆ Renew if damaged
• ◆ Coat cylinder head/bearing cap transition points with D 454 300 A2 before fitting
• Cylinder head cover
• ◆ With cable guide
• 10 Nm
• Seal

→ Fig. 1     Checking cylinder head for distortion

Max. permissible distortion: 0.1 mm
(minimum distance between linear measurements: 100 mm)