Skylark L4-144 2.4L DOHC VIN T SFI (1997)
19. Remove the camshaft housing and gasket.
20. Inspect the camshaft bearing surfaces and the camshaft lobes for the damage. Replace if necessary. Check for:
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Wear
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Galling
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Gouges
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Overheating or discoloration
21. Measure the camshaft housing bearing surface bore diameter. If out of specification, replace the camshaft housing.
Installation
TOOL REQUIRED
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J 36660 Torque Angle Meter
NOTE: Ensure that the camshaft housing alignment dowel pins are in the cylinder head prior to installing the housing.
1. Install the camshaft housing to the cylinder head with a new gasket. Sealer is unnecessary.
2. Loosely install one camshaft housing to the cylinder head bolt in order to hold the housing in place.
NOTE: Used lifters must be returned to their original position in the camshaft housing. If the camshaft is being replaced, the lifters must also be
replaced.
3. Install the lifters into the lifter bores.
CAUTION: The camshaft lobes and the journals must be adequately lubricated or serious engine damage will occur upon start up.
4. Lube the camshaft lobes and the journals with the Camshaft and Lifter Prelube GM P/N 12345501 or the equivalent.
5. Install the camshaft in the same position as when removed. The timing chain sprocket dowel pin should be straight up and line up with the
centerline of the lifter bores.
6. Install the new camshaft housing to the orange camshaft housing cover seals into the cover. Sealer is unnecessary.
7. Remove the bolt holding the housing in place.
8. Apply pipe sealant GM P/N 1052080 or the equivalent to the camshaft housing and the cover retaining bolt threads.
