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Home >> Lincoln >> 1998 >> Continental V8-4.6L DOHC VIN V >> Repair and Diagnosis >> Powertrain Management >> Tune-up and Engine Performance Checks >> Compression Check >> Testing and Inspection >> Compression Test
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Compression Test

AllData Editors Note - Ford does not provide a cranking pressure specification, only an acceptable range.

1. Make sure the oil in the crankcase is of the correct viscosity and at the proper level. Make sure battery is properly charged. Operate the vehicle until the engine is at normal operating temperature. Turn the ignition switch OFF. Remove all sparkplugs.
2. Install a compression gauge such in the No. 1 cylinder.
3. Install an auxiliary starter switch in the starting circuit. Use the auxiliary starter switch, with the ignition switch off, to crank the engine a minimum of five compression strokes and record the highest reading. Note the approximate number of compression strokes required to obtain the highest reading.
4. Repeat the test on each cylinder, cranking the engine approximately the same number of compression strokes.
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