volkswagen Workshop Repair Guides

Volkswagen Workshop Service and Repair Manuals

Removing and installing injectors > < Dynamically checking and adjusting commencement of injection
Diesel direct injection and glow plug system
Servicing Diesel direct injection system
Checking valve timing

Special tools, testers, measuring instruments and auxiliary items required

  • ◆ Setting bar 2065 A
  • ◆ Pin 2064
  • ◆ Torque wrench V.A.G 1331 (5...50 Nm)
 
V23-0169
  • ‒ Remove upper toothed belt guard and cylinder head cover.
  • ‒ Check tension of toothed belt.
  • ‒ → Set engine to TDC No. 1 cylinder -arrow-. Setting bar must fit into the camshaft slot. If it is not possible to insert the bar, adjust valve timing as follows.
  • ‒ Rotate camshaft so that setting bar can be inserted.
  • ‒ Centralize setting bar as follows:
    Turn camshaft so that one end of setting bar contacts the cylinder head. Using feeler gauge establish the gap at the other end of the setting bar. Place a feeler gauge corresponding to half the gap between setting bar and cylinder head. Turn camshaft until the setting bar contacts the feeler gauge. Place a 2nd feeler gauge, of same thickness, at the other end between setting bar and cylinder head.
  • ‒ Loosen camshaft sprocket securing bolt 1/2 turn. Release camshaft sprocket from camshaft taper by tapping with a hammer (using a drift through rear toothed belt guard opening).
 
V17-0314
  • ‒ → Lock injection pump sprocket with pin 2064.
  • ‒ Check TDC, if necessary turn crankshaft until TDC mark on flywheel aligns with mark on bell housing => Fig. 23-169, Page 23-28
  • ‒ Remove pin.
  • ‒ Tighten camshaft sprocket securing bolt to 45 Nm.
  • ‒ Remove setting bar.
  • ‒ Dynamically check commencement of injection
    =>Page 23-24

Removing and installing injectors > < Dynamically checking and adjusting commencement of injection