1D
Compression Check
Check compression pressure on all 4 cylinders as follows:
1) Warm up engine.
2) Stop engine after warming up.
NOTE:
After warming up engine, place transmission gear shift lever in “Neutral” and set parking brake and block drive wheels.
3) Disconnect negative (–) cable at battery.
4) Remove injector cover (1).
5) Remove all glow plugs referring to Glow Plug Removal and Installation:K9K .
6) Disconnect ECM connectors.
7) Install special tool (dummy heater plug) into glow plug hole.
Special Tool
(A) : 09917–78120
(B) : 09912–57821
8) Connect negative (–) cable at battery.
9) Disengage clutch (1) (to lighten starting load on engine).
10) Crank engine with fully charged battery and read highest pressure on compression gauge.
Compression pressure specification
Max. difference between any two cylinders: 300 kPa (3.0 kg/cm², 42.6 psi)
11) Carry out Steps 7) to 10) on each cylinder to obtain 4 readings.
12) Disconnect negative (–) cable at battery.
13) After checking, install glow plugs referring to Glow Plug Removal and Installation:K9K .
14) Install injector cover (1).
15) Connect ECM connectors.
16) Connect negative (–) cable at battery.