OEM Cadillac DTS Timing Chain

Cadillac DTS Timing Chain Parts Questions & Experts Answers

• Timing Chain
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  Q: How to replace the primary cam gear and timing chain on Cadillac DTS?

  A: To replace the oem timing chain and sprockets, begin by removing the Oil Pump. Tie up the primary timing marks with the help of the j 39946 (Crankshaft Socket - 4.0L and 4.6L). Next, the secondary timing chains are to be removed at both the right and left sides. Then, remove the primary timing chain tensioner and the camshaft intermediate sprocket retaining bolt. Take off the main timing chain, crankshaft sprocket, and camshaft midpoint sprocket as a single unit. Cleaning and inspection of the camshaft timing drive components. For installation, bring the timing marks of the camshaft intermediate and crankshaft sprockets vertically. Mount the timing chain for the main camshaft to the drive sprockets in such a way the 1st piston is going to be at the top dead-center while the crankshaft keyway is at the 1 o'clock position. Align the crankshaft key to the drive sprocket using the j 39946, then assemble the primary timing chain, crankshaft sprocket, and the camshaft intermediate sprocket. To make the camshaft intermediate sprocket retaining bolt tight to 60 nm (44 lb ft). It is not until after the secondary timing chains are installed that the pin in which holds the tensioner ought to be removed. Mount the main drive tensioner chain and back the secondary timing chains on both sides. Do not be afraid to remove the pin from the primary timing chain tensioner release lever and make sure to have the primary timing marks aligned vertically when you reinstall the Oil Pump.