Nissan 350Z Workshop Maunual 2005 (15) PDF | Page 120

EM-120
CYLINDER HEAD
Revision: 2005 August 2005 350Z
CYLINDER HEAD PFP:11041
On-Vehicle Service ABS009YW
CHECKING COMPRESSION PRESSURE
1. Warm up engine thoroughly. Then, stop it.
2. Release fuel pressure. Refer to EC-94, "
FUEL PRESSURE RELEASE" .
3. Disconnect fuel pump fuse to avoid fuel injection during mea-
surement.
4. Remove engine cover with power tool. Refer to EM-18, "
INTAKE MANIFOLD COLLECTOR" .
5. Remove ignition coil and spark plug from each cylinder. Refer to EM-35, "
IGNITION COIL" and EM-36,
"SPARK PLUG (PLATINUM-TIPPED TYPE)" .
6. Connect engine tachometer (not required in use of CONSULT-ll).
7. Install compression tester with adapter onto spark plug hole.
? Use the adapter whose picking up end inserted to spark plug
hole is smaller than 20 mm (0.79 in) in diameter. Otherwise, it
may be caught by cylinder head during removal.
8. With accelerator pedal fully depressed, turn ignition switch to ?START? for cranking. When the gauge
pointer stabilizes, read the compression pressure and engine rpm. Perform these steps to check each cyl-
inder.
Compression pressure:
Unit: kPa (kg/cm
2
, psi) /rpm
CAUTION:
Always use a fully changed battery to obtain specified engine speed.
PBIC2058E
PBIC0900E
SBIA0533E
Standard Minimum Differential limit between cylinders
1,275 (13.0, 185) / 300 981 (10.0, 142) / 300 98 (1.0, 14) / 300

Nissan 350Z Workshop Maunual 2005 (15) Summary of Content

EM-120CYLINDER HEADRevision: 2005 August 2005 350ZCYLINDER HEAD PFP:11041On-Vehicle Service ABS009YWCHECKING COMPRESSION PRESSURE1. Warm up engine thoroughly. Then, stop it.2. Release fuel pressure. Refer to EC-94, "FUEL PRESSURE RELEASE" .3. Disconnect fuel pump fuse to avoid fuel injection during mea-surement.4. Remove engine cover with power tool. Refer to EM-18, "INTAKE MANIFOLD COLLECTOR" .5. Remove ignition coil and spark plug from each cylinder. Refer to EM-35, "IGNITION COIL" and EM-36,"SPARK PLUG (PLATINUM-TIPPED TYPE)" .6. Connect engine tachometer (not required in use of CONSULT-ll).7. Install compression tester with adapter onto spark plug hole. Use the adapter whose picking up end inserted to spark plughole is smaller than 20 mm (0.79 in) in diameter. Otherwise, itmay be caught by cylinder head during removal.8. With accelerator pedal fully depressed, turn ignition switch to START for cranking. When the gaugepointer stabilizes, read the compression pressure and engine rpm. Perform these steps to check each cyl-inder.Compression pressure:Unit: kPa (kg/cm2 , psi) /rpmCAUTION:Always use a fully changed battery to obtain specified engine speed.PBIC2058EPBIC0900ESBIA0533EStandard Minimum Differential limit between cylinders 1,275 (13.0, 185) / 300 981 (10.0, 142) / 300 98 (1.0, 14) / 300