volkswagen Workshop Repair Guides

Volkswagen Workshop Service and Repair Manuals

Checking compression > < Removing
Installing
Installing
  Note
t  Always renew cylinder head bolts.
t  In cases of repair carefully remove gasket remains from cylinder head and cylinder block. Ensure that no long scores or scratches are made on the surfaces. When using abrasive paper do not use a grade less than 100.
t  Carefully remove emery and abrasive remains.
t  Remove new cylinder head gasket from packaging, just before installation.
t  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 nearly uniformly below TDC.
–  Place cylinder head gasket on.
–  Fit cylinder head, install cylinder head bolts and tighten by hand.
   
–  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 rigid spanner: stage III = 1/4 turn (90°), stage IV = 1/4 turn (90°)
  Note
Later retightening of cylinder head bolts is not necessary after repairs.
–  After tightening cylinder head, turn camshaft pulley so that cams for no. 1 cylinder point equally upwards. Before fitting toothed belt, turn crankshaft in engine DOR to TDC marking.
  V15-0738

Checking compression > < Removing