Autotech 10.109.405K Vernier Timing Gear Mk4 2.0L Engines - Manual (Page 2)

alignment ref on gear face
alignment ref on
hub face
A
TDC and 1.5° hash marks
B
A) Lockpin goes here with both alignment marks in line to get "zero-change."
B) Lockpin retaining socket in cap.
hub
cap
p 2/2
ENGINE TIMING NOTES:
To set timing, turn the camshaft timing sprocket (set like stock for now) until the TDC
mark aligns with the mark on the valve cover or head as shown (Fig 3). The crankshaft
should not have been moved, but you should double check that the crank is still at TDC.
Note that depending on the camshaft used, the 2.0L engines may be “interference engines,”
meaning that the valves will hit the tops of the pistons if the engine goes out of time.
Therefore, you cannot rotate the cams beyond the point where the valves hit the top of
the piston on any one cylinder. Once TDC on both cams and crank are confirmed, place the
timing belt on the camshaft timing sprocket and set the belt tension using the special tool
(VW TOOL T10020) (fig 4). Torque the tensioner nut to spec (20 Nm/15 ft lb).
Phone 949.240.4000 Fax 949.240.0450 32240-E Paseo Adelanto, San Juan Capistrano, CA 92675
fig 3
fig 4