Alero L4-144 2.4L DOHC VIN T SFI (2000)
9. Remove the exhaust camshaft housing to the cylinder head bolts.
10. Remove the exhaust camshaft housing.
11. Remove the camshaft housing gasket.
12. Remove the spark plug.
13. Using a suitable adapter, apply air pressure to the cylinder.
14. Compress the valve spring. Use the J 5892-D and the J 36588.
15. Disassemble the following components:
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The valve keys
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The retainer
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The spring
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The valve seal using J 36017
The rotator (intake)
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The valve spring seat (exhaust)
16. Assemble the following components: