Jetta GLS L4-1.9L DSL Turbo (ALH) (2001)
Valve Guide: Service and Repair
Special tools
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3121 Drift
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3120 Reamer and cutting fluid
Removing
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Clean and check cylinder head.
Note: Do not replace the valve guides in cylinder heads where the valve seats can no longer be reworked, or cylinder heads, which have already
been machined to the minimum dimension.
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Press out worn valve guides using 3121 from camshaft side (valve guides with shoulder - service version - from combustion chamber side).
Installing
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Press new guides in up to shoulder (lubricated with oil) from camshaft side in cold cylinder head using 3121 drift.
Note: When the valve guide shoulder makes contact, do NOT allow the pressure to exceed 2000 psi or the shoulder could break off.
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Ream out guides with 3120 hand reamer and plenty of cutting fluid.
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Rework valve seats.