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Home >> Cadillac >> 1999 >> DeVille Concours V8-4.6L VIN 9 >> Repair and Diagnosis >> Engine, Cooling and Exhaust >> Engine >> Timing Components >> Timing Chain >> Service and Repair >> Primary Camshaft Drive Chain Replacement

Primary Camshaft Drive Chain Replacement

Removal Procedure





1. Remove the engine assembly.
2. Remove the drive belt.
3. Remove the drive belt idler pulley.
4. Remove the drive belt tensioner.
5. Remove the engine front cover.
6. Remove the oil pump.
7. Remove the left side cam cover.
8. Remove the right side cam cover.
9. Align all timing marks first.
10. Remove three timing chain tensioners.
11. Remove the camshaft sprocket bolt from all four camshafts. Remove the sprockets.
12. Remove the secondary drive chains from around the intermediate shaft sprocket.
13. Remove the retaining bolt for the intermediate shaft sprocket.
14. Slide the gears and the primary drive chain off of the crankshaft and the intermediate shaft.
15. The intermediate shaft should not be removed unless wear is evident.

Installation Procedure





1. Retime the camshafts. Refer to Setting Camshaft Timing under Camshaft, Engine.
2. Install the oil pump.
3. Install the left side cam cover.
4. Install the right side cam cover.
5. Install the drive belt idler pulley.
6. Install the drive belt tensioner.
7. Install the drive belt.
8. Install the engine assembly.
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