ap0530d056001b

Check and adjust valve clearance

Tip ap · temă 05.30 · versiune 0102 · 2010-09-21

Valabil pentru: ENGINE 900.9 in MODEL 668, 670

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Încadrare

Grupă funcțională 1 Motor › 05 Distribuţia motorului › 05.30 Supape — Seria 668 · Seria 670 · Seria 900 (modele 9**)

EinPAS 15 Motor › 15.17 Distribuție › 15.17.30 Distribuție a supapelor — Seria 668 · Seria 670 · Seria 900 (modele 9**)

AP05.30-D-0560-01B

Check and adjust valve clearance

Check values for valves

Number

Designation

Engine
900.9, 924.9, 925.9, 926.9,
engine
902.9
without code MS8

BE05.30-N-1012-01B

Valve clearance

Inlet

mm

0.40

Outlet

mm

0.60

BE05.30-N-1013-01B

Test tolerance for valve clearance

Inlet

mm

-0.05/+0.05

Outlet

mm

-0.10/+0.10

Engine timing - general

Number

Designation

Engine
900.9, 902.9

BA05.00-N-1002-01A

Jam nut on rocker arm adjustment screw

Nm

25

Check and adjust valve clearance
Check and adjust valve clearance

N05.30-2070-01

Shown: intake valves, engine 904

Shown: exhaust valve, engine 904

N05.30-0307-01

1 Check valve clearance using feeler gauge between rocker arm and valve bridge (intake valve) or valve stem (exhaust valve) (arrow).

The valve clearance does not have to be adjusted during maintenance if it is within the test tolerance.

2 Set valve clearance.

Slacken locknut (2) and adjust valve clearance using adjusting bolt (1). Then counterhold adjusting bolt (1) and tighten locknut (2) to specified torque.

Once again, inspect valve clearance (arrow), adjust to correct setting if necessary.

The valve clearance is correctly set if it is possible to pull the feeler gauge through with a slight resistance.