Subaru Crosstrek Service Manual: Compression Inspection
MECHANICAL(H4DO) > Compression
INSPECTION
CAUTION:
After warming-up, engine becomes very hot. Be careful not to burn yourself during measurement.
1. Turn the ignition switch to OFF.
2. After warming-up the engine, turn the ignition switch to OFF.
3. Make sure that the battery is fully charged.
4. Check the starter motor for satisfactory performance and operation.
5. Remove the fuse of fuel pump from main fuse box.
6. Start the engine and run it until it stalls.
7. After the engine stalls, crank it for five more seconds.
8. Turn the ignition switch to OFF.
9. Remove all spark plugs. Spark Plug > REMOVAL">
10. Install the compression gauge to the spark plug hole.
NOTE:
When using a screw-in type compression gauge, the screw should be less than 25 mm (0.98 in) long.
11. Connect the battery ground terminal. NOTE">
12. Turn the ignition switch to ON.
13. Depress the accelerator pedal to full throttle.
14. Crank the engine by starter motor and read the value when the needle of the compression gauge becomes stable.
NOTE:
• Perform at least two measurements per cylinder, and make sure that the values are correct.
• If the compression pressure is out of standard, check or adjust the pistons, valves and cylinders.
Compression pressure (at 200 — 300 r/min):
Standard
1,050 — 1,400 kPa (11 — 14 kg/cm2, 152 — 203 psi)
Difference between cylinders
100 kPa (1 kg/cm2, 14 psi) or less
15. After inspection, install the related parts in the reverse order of removal.
Installation
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Connecting rod Specification
MECHANICAL(H4DO) > Connecting RodSPECIFICATIONRefer to “Cylinder Block” for removal and installation procedures of connecting rod. Cylinder Block > REMOVAL"> Cylinder Block ...
Other materials:
Inspection
LAN SYSTEM (DIAGNOSTICS) > CAN Communication Circuit CheckINSPECTION1. GROUND SHORT INSPECTIONWiring diagram:CAN communication system CAN Communication System > WIRING DIAGRAM">• Without BSD/RCTA• With BSD/RCTANOTE:Main wiring harness or related lines may be shorted to gro ...
Removal
EXTERIOR/INTERIOR TRIM > Roof SpoilerREMOVAL1. Disconnect the ground cable from battery. NOTE">2. Remove the trim panel - rear gate UPR. Rear Gate Trim > REMOVAL">3. Remove the roof spoiler assembly.(1) Disconnect the connector of high-mounted stop light.(2) Remove the caps, ...
Charge warning light
If
this light illuminates when the engine is
running, it may indicate that the charging
system is not working properly.
If the light illuminates while driving or does
not turn off after the engine starts, stop the
engine at the first safe opportunity and
check the alternator belt. If the ...
