OEM GMC Sierra 3500 Classic Timing Chain

GMC Sierra 3500 Classic Timing Chain Parts Questions & Experts Answers

• Timing Chain
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  Q: What tools are required to replace the timing chain and sprocket on LY6, L76, and L92 engines on GMC Sierra 3500 Classic?

  A: To change the Timing Chain and sprocket for ly6, l76, l92 engines, you need the following tools: en 46330 Timing Chain Tensioner retaining pin (EN 46330), j 8433 puller bar (J 8433), j 41478 crankshaft front oil seal installer (J 41478), j 41558 crankshaft sprocket remover (J 41558), j 41665 crankshaft balancer and sprocket installer (J 41665), j 41816-2 crankshaft end protector (J 41816-2), j 42386-a flywheel holding tool (J 42386-A), and j 45059 angle meter start by removing the Oil Pump and Starter motor which should ensure the teeths of j 42386-a cooperate with the engine flywheel. Mounting the j 42386-a with one m10-1.5 x 120 mm, one m10-1.5 x 45 mm bolt, while tightening both to 50 n.m (37 lb ft). Artefacts. Rotate the crankshaft sprocket so as to line the camshaft position actuator and crankshaft sprocket marks, then remove and discard the cmp actuator solenoid valve (234) and cmp actuator (235) as well as the Timing Chain (208). Loosen and isolate the cmp actuator and Timing Chain off the camshaft and use a strap of the actuator to the reluctor wheel with a tie strap. Remove Timing Chain tension bolts (231) and tensioner (232), remove the crankshaft sprocket (207) using the j 41816-2, j 41558, bolts,and j 8433. Taper the key into the crankshaft keyway and drive the key, install the crankshaft sprocket, and line up the sprocket keyway with keyway. The j 41478 and that of j 41665 to be used to install the crankshaft sprocket making it fully seated. Compress the Timing Chain Tensioner guide, installing the en46330 after that, then Timing Chain Tensioner with tightening up to 25 n.m (18 lb ft). Mount the cmp actuator to the locating pin of the camshaft, making sure the teeth of the sprocket and Timing Chain align, and the alignment marks are accurate. Change a new cmp actuator valve (234), which should be firmly threaded into the camshaft. Check the sprockets align, then remove the en 46330 and go to the cmp actuator solenoid valve, tighten it first to 65 n.m (48 lb ft) and then 90° more using the j 45059. Lastly, strip off the j 42386-a and bolts, and retighten the Starter motor and Oil Pump.