4. CHECKING AND ADJUSTING; [1] ENGINE BODY; Compression Pressure- Page 159

ENGINE

L3560, L4060, L4760, L5060, L5460, L6060, WSM

1-S12

4.  CHECKING AND ADJUSTING

[1] ENGINE BODY

Compression Pressure

1. After warming-up the engine, remove the air cleaner, muffler,

glow lead, and glow plugs.

2. Set a compression tester (1) (Code No.: 07909-39081) with the

adaptor (2) to the glow plug hole.

3. Crank the engine with the starter to operate the engine approx.

200 to 300 min

-1

 (rpm).

4. Measure a maximum value of the compression pressure. Do the

same steps twice for each cylinder.

NOTE

• Examine the compression pressure with the specified

valve clearance.

• Always use a fully charged battery for you do this test.
• Variances in cylinder compression values must be less

than 10 %.

9Y1210824ENS0004US0

Compression pressure

Factory specification

2.95 to 3.23 MPa

30.0 to 33.0 kgf/cm

2

427 to 469 psi

Allowable limit

2.35 MPa

24.0 kgf/cm

2

341 psi

Tightening torque

Injector clamp screw

24 to 27 N·m

2.4 to 2.8 kgf·m

18 to 20 lbf·ft

Cylinder head cover screw

6.86 to 11.3 N·m

0.700 to 1.15 kgf·m

5.06 to 8.33 lbf·ft

Injection pipe retaining nut

24.5 to 29.4 N·m

2.50 to 2.99 kgf·m

18.1 to 21.6 lbf·ft

(1) Compression Tester

(2) Glow Plug Adaptor

KiSC issued 03, 2016 A