Volkswagen Workshop Service and Repair Manuals

Checking compressions

Notes:

• ◆ When installing an exchange cylinder head with fitted camshaft, the contact surfaces between the bucket tappets and the cam must be oiled before installing the 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.

• Cap
• ◆ Renew seal if damaged
• 20 Nm
• Intake manifold - upper part
• Gasket
• ◆ Renew
• Cylinder head cover
• 10 Nm
• Cylinder head cover gasket
• ◆ Renew if damaged
• ◆ Before fitting gasket coat transition between bearing cap/cylinder head and the half moon shaped recesses with D 454 300 A3
• 20 Nm

• Support
• Cylinder head
• ◆ Check for distortion => Fig. 1
• ◆ Installing => Page 15-6
• ◆ After replacing renew the complete coolant
• Cylinder head gasket
• ◆ Renew
• ◆ After replacing renew the complete coolant
• Cylinder head bolt
• ◆ Sequence when loosening and tightening => Installing cylinder head Page 15-6
• ◆ Note version
  => Page 15-5 , Fig. 2
• Camshaft sprocket
• ◆ Note position when installing the toothed belt
  => Page 13-13

• Lifting eye
• M8: 25 Nm
  M10: 45 Nm
• Toothed belt
• ◆ Check for wear
• ◆ Do not kink
• ◆ Removing and installing
  => Page 13-13
• Tensioner
• ◆ 02.94 ▸ semi-automatic
• ◆ Checking semi-automatic toothed belt tensioning roller
  => Page 13-17
• Toothed belt guard - upper part

→ Fig. 1     Checking cylinder head for distortion

Max. permissible distortion: 0.05 mm

→ Fig. 2     Cylinder head bolts identifying features

A - Bolt with smooth head

• ◆ For previous cylinder head gasket

B - Bolt with knurled head -arrow-

• ◆ For metal cylinder head gasket