Cylinder Head Cleaning And Inspection - Suzuki XL7 2007 Service Manual

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Table of Contents

NEVER reuse a valve stem oil seal.

8. Remove the valve stem oil seal using the EN 46116

and discard.

9. Repeat these procedures for the remaining valves.

10. Remove the cylinder head oil gallery expansion

11. Remove the cylinder head coolant threaded plugs.

Reference: "Cylinder Head Cleaning and Inspection: ".

Reference: "Valve Spring Inspection and Measurement:

Reference: "Valve and Seat Grinding: ".

Cylinder Head Cleaning and Inspection

Reference: "Cylinder Head Disassemble: ".

Special tool

EN 46122 Camshaft Position Actuator Check-Ball

Valve Remover/Installer

J 8001 Dial Indicator Set

J 8358 Carbon Removal Brush

J 28410 Gasket Remover

J 42096 Valve Guide Reamer

Cleaning Procedure

1. Remove any old thread sealant, gasket material or

sealant using J 28410.

2. Clean all cylinder head surfaces with non-corrosive

Refer to "Safety Glasses Caution: ".

3. Blow out all the oil galleries using compressed air.

4. Remove any carbon deposits from the combustion

chambers using the J 8358.

5. Clean any debris or build-up from the lifter pockets.

Visual Inspection

1. Inspect the cylinder head camshaft bearing surfaces

for the following conditions:

– Excessive scoring or pitting

– Discoloration from overheating

– Deformation from excessive wear

– If the camshaft bearing journals appear to be

scored or damaged, you must replace the cylinder

head. DO NOT machine the camshaft bearing

Engine Mechanical: