Volkswagen Workshop Service and Repair Manuals

Checking compressions

Notes:

• ◆ When installing an exchange cylinder head with fitted camshaft, the contact surfaces between bucket tappet and cam must be oiled after installation.
• ◆ The plastic protectors fitted to protect the open valves must only be removed immediately before fitting the cylinder head.
• ◆ When replacing the cylinder head the complete coolant must be renewed.

• Toothed belt guard - upper part
• 45 Nm

• Tensioner
• Toothed belt
• ◆ Check for wear
• ◆ Do not kink
• ◆ Removing and installing
  => Page 13-18
• Toothed belt guard
• ◆ Engine code: AAM, ABS, ADZ
• 10 Nm
• Rear toothed belt guard
• Camshaft sprocket
• ◆ Note position when installing the toothed belt
  => Page 13-18 , removing, installing and tensioning toothed belt

• From the crankcase breather
• ◆  , Item 13
• ◆ On engine codes ABS and ADZ the crankcase breather is extended by a metal pipe
• Pressure regulating valve
• ◆ For crankcase breather
• ◆ Only on engine codes: 2E, ADY, AGG
• Cylinder head cover
• ◆ On engine codes AAM, ABS and ADZ sheet steel cover with reinforcing strips
• Cap
• ◆ Renew seal if damaged
• Oil deflector

• Cylinder head bolt
• ◆ Sequence when loosening and tightening => Page 15-5 , Removing and installing cylinder head
• Cylinder head cover gasket
• ◆ Renew if damaged
• ◆ On engine codes AAM, ABS and ADZ: 3-part, always renew
• ◆ Before fitting gasket coat transition between bearing cap/cylinder head with "D2"
• Lifting eye
• Cylinder head
• ◆ Check for distortion => Fig. 1
• ◆ Removing and installing => Page 15-5
• ◆ After replacing renew the complete coolant
• Cylinder head gasket
• ◆ Renew
• ◆ After replacing renew the complete coolant
• 20 Nm

→ Fig. 1     Checking cylinder head for distortion

Max. permissible distortion: 0.1 mm