Volvo Workshop Manuals
V70R AWD L5-2.3L Turbo VIN 52 B5234T6 (1998)
Powertrain Management > Tune-up and Engine Performance Checks > Compression Check > System Information > Technical Service Bulletins > Page 3107
Compression Check: Testing and Inspection
Compression Tester No. 999 9689, or equivalent
Starter Switch No. 115 8263, or equivalent
Extension L155 No. 115 8540, or equivalent
NOTE: For additional information on special tools and equipment used in this procedure, refer to Service and Repair. See: Engine, Cooling and
Distributor Ignition System (DI System)
The DI system operates at high power and dangerous voltages in both low and high tension circuits.
Dangerous voltages occur throughout the DI system, even in connectors etc.
NOTE: Measure compression with the engine hot and at wide open throttle
Normal value B5234T and B5254T: 1.1-1.3 MPa (156-185 psi)
Maximum deviation between cylinders: 0.2 MPa (28.4 psi)
NOTE: This applies when the engine is warm and the throttle fully open and the engine being turned by the starter motor at 4.2-5.0 rps (250-300
timing pick-up connector
HT lead cover
Lock throttle open:
Remove spark plugs and connect starter switch tool No. 115 8263, or equivalent.
Connect connector between alternator (+) and service output on control module.
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