Jaguar X-Type Sedan and Estate (Wagon). Service manual — part 129

Published: 11-May-2011

Engine System - General Information - Piston Ring End Gap

General Procedures

1.

CAUTION: Do not mix up the piston rings. Install the piston rings

in the same position and location.

Using the Feeler Gauge, measure the piston ring gap.

The values given in the specification refer to a gauge ring used
during production.

Published: 11-May-2011

Engine System - General Information - Piston Ring-to-Groove Clearance

General Procedures

1. NOTE: The piston ring must protrude from the piston groove. To
determine the piston ring clearance, insert the Feeler Gauge right to the
back of the groove, behind the wear ridge.

Using the Feeler Gauge, measure the piston ring clearance.

Published: 11-May-2011

Engine System - General Information - Valve Seat Inspection

General Procedures

General Equipment

Valve seat width scale

1. Measure the width of the valve seat.

Measure the valve seat width using the

Valve seat width scale

.

If the value is not to specification rework the valve seat.

Published: 11-May-2011

Engine System - General Information - Valve Spring Free Length

General Procedures

1. Using a vernier gauge, measure the free length of each valve spring.

Verify the length is within specification.