V70 XC AWD L5-2.4L Turbo VIN 56 B5254T (1998)
Compression Check: Testing and Inspection
SPECIAL TOOLS
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Compression Tester No. 999 9689, or equivalent
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Starter Switch No. 115 8263, or equivalent
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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
Exhaust/Engine/Tools and Equipment/Tools For Engine Service and Repair
Distributor Ignition System (DI System)
WARNING:
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The DI system operates at high power and dangerous voltages in both low and high tension circuits.
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Dangerous voltages occur throughout the DI system, even in connectors etc.
NOTE: Measure compression with the engine hot and at wide open throttle
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Normal value B5234T and B5254T: 1.1-1.3 MPa (156-185 psi)
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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
rpm).
1. Remove:
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timing pick-up connector
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HT lead cover
Lock throttle open:
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Remove spark plugs and connect starter switch tool No. 115 8263, or equivalent.
Connect connector between alternator (+) and service output on control module.