Skylark L4-144 2.4L DOHC VIN T SFI (1997)
10. Remove the fuel rail to the camshaft housing retaining bolts.
11. Remove the fuel rail from the cylinder head as follows:
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Cover the injector openings in the cylinder head.
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Cover the injector nozzles.
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Leave the fuel lines attached and the position fuel rail aside (on top of the master cylinder).
12. Disconnect, but do not remove from the vehicle, the timing chain housing at the intake camshaft housing.
13. Remove the camshaft housing cover to the camshaft housing retaining bolts.
NOTE: Use the reverse of the tightening procedure when loosening the camshaft housing to the cylinder head retaining bolts. Leave the two bolts
loosely in place in order to hold the camshaft housing while separating the camshaft cover from the housing.
14. Remove the camshaft housing to the cylinder head retaining bolts.
CAUTION: Tighten the bolts evenly in order to prevent the cover from binding on the dowel pins.
15. Push the cover off the housing by threading four of the housing to head retaining bolts into the tapped holes in the camshaft housing cover.
16. Remove the two loosely installed camshaft housing to head bolts.
17. Remove the cover and discard the gaskets.
18. Loosely reinstall one camshaft housing to cylinder head bolt in order to retain the housing during the camshaft and lifter removal.
19. Note the position of the chain sprocket dowel pin for reassembly. Remove the camshaft being careful not to damage the camshaft or the journals.
NOTE: The valve lifters are not serviceable. Replace faulty valve lifters. Coat the valve lifter with the Camshaft and Lifter Prelube GM P/N
12345501 or the equivalent. If the new lifters are installed, add the Engine Oil Supplement GM P/N 1052367, or the equivalent, to the engine oil.
20. Remove the valve lifters as follows:
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Keep the lifters in order to reinstall the lifters to the original locations.
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In order to minimize the lifter bleed down, perform the following procedure:
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Store the lifters upside down, opposite of the installed position, on a level surface.
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Store the lifters submerged in clean engine oil.
NOTE: Ensure that the alignment dowel pins are in the cylinder head prior to installing the camshaft housing.