volkswagen Workshop Repair Guides

Volkswagen Workshop Service and Repair Manuals

Checking compressions > < Removing and installing cylinder head
4-Cyl. diesel engine, Mech.
Removing and installing cylinder head
Installing cylinder head

Special tools, testers and auxiliary items

  • ◆ V.A.G 1332 Torque wrench (40...200 Nm)
  • ◆ Guide pins 3070

Installing

Notes:

  • ◆ Always renew cylinder head bolts.
  • ◆ In cases of repair carefully remove gasket remains from cylinder head and cylinder block. Ensure that no long grooves or scratches are created. When using abrasive paper do not use a grade less than 100.
  • ◆ Carefully remove emery and abrasive remains.
  • ◆ Remove new cylinder head gasket from packaging, just before installation.
  • ◆ Handle gasket extremely carefully. Damaging the silicone layer or the indented area will lead to leaks.
  • ‒ Turn crankshaft to TDC marking before fitting cylinder head.
  • ‒ Turn crankshaft against engine direction of rotation until all pistons are approximately equally placed below TDC.
  • ‒ Place cylinder head gasket on.
 
V15-0805
  • ‒ → To centralize, screw guide pins from 3070 into the outer threaded holes on the intake side.
  • ‒ Fit cylinder head, screw in 8 remaining cylinder head bolts and tighten by hand.
  • ‒ Remove guide pins with removal tool from 3070 and install cylinder head bolts.
 
V15-0738
  • ‒ → Tighten cylinder head in four stages in sequence shown as follows:
  • ‒ 1. Tighten initially with torque wrench:
         Stage I = 40 Nm
         Stage II = 60 Nm
  • ‒ 2. Turn further with normal spanner:
         Stage III = 1/4 turn (90 °)
         Stage IV = 1/4 turn (90 °)

Notes:

  • ◆ Loosening cylinder head: Reverse sequence.
  • ◆ Pulling-down cylinder head after repairs is not necessary.
  • ‒ After tightening the cylinder head turn camshaft so that the cams for No. 1 cylinder point evenly upwards. Turn crankshaft, in engine D.O.R., To TDC before fitting toothed belt.

Checking compressions > < Removing and installing cylinder head