Passat Sedan L4-1.9L DSL Turbo (AAZ) (1995)
Compression Check: Testing and Inspection
SPECIAL TOOLS, TESTERS AND AUXILIARY ITEMS
^
Compression Tester tool No. US 1110, or equivalent.
^
Adaptor tool No. VAG 1381/2A, or equivalent.
^
Box Wrench No. 3035, or equivalent.
TEST CONDITIONS
-
Engine oil temperature 30°C (86°F) minimum.
TEST SEQUENCE
-
Disconnect wiring from engine stop on injection pump, insulate and lay to one side
-
Remove injection lines using 3035 tubing wrench
-
Remove all fuel injectors and at same time, remove all heat shields
-
Thread in VAG 1323/2A adaptor in place of the fuel injectors. Insert old heat shield between adaptor and cylinder head
-
Hand thread US 1110 into the compression tester adapter
NOTE: For compression tester usage, see manufacturers operating instructions.
-
Operate starter until tester shows no further increase in pressure
Compression Pressure
New: 34 bar
Wear limit: 26 bar
Permissible difference between all cylinders 5 bar
NOTE: Always replace the heat shield seals fitted between the cylinder head and the fuel injectors.
-
Heat shield installed position, arrow points to cylinder head
Tightening torques:
Fuel injector lines 25 Nm (18 ft lb)
Fuel injectors 70 Nm (52 ft lb)