GM 24461834 Chain Assembly, Timing

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If you want to clear and inspect timing system components, start by disconnecting the negative battery terminal and removing the spark plugs, valve cover, oil pan, and drive belt. Remove the drive belt tensioner and engine front cover next before setting the No. 1 piston at TDC by lining up marks on the crankshaft sprocket with intake camshaft sprocket and exhaust camshaft sprocket. Remove timing chain tensioner, upper timing chain guide, adjustable timing chain guide. Then remove bolts on exhaust camshaft sprocket and intake camshaft sprocket discarding them while installing new ones for reassembly. Be careful when removing the timing chain through the top of cylinder head so as to avoid rotation of camshafts or crankshaft. Take out the timing chain drive sprocket and also remove the timing chain oiling nozzle from engine block. Every element should be checked for wear or damages and any that is in doubt replaced. Ensure that the crankshaft sprocket's timing mark is correctly positioned during installation while tightening a new bolt which secures an installation of an intake camshaft sprocket. Place back resetting "INT" end link on bright colored link at intake camshaft sprocket after lowering a timing in its place. A fixed link must be engaged onto crank shaft sprockets' times mark for adjustment chain guide to be mounted as well as a new bolted exhaust camshaft sprocket along with an upper one followed by an upper one too. Finally tighten all bolts according to torque values given for each of them. The suggested steps below are used in compressing a tensioner of a timing chain as it is installed into its place; apply RTV sealant to threads of a plug access to a timber guiding at a time plug access sealing application takes place/insertion is made; reinstall valve cover/engine front cover/ crank case refilled with fresh oil/attach battery/restart engine, check for leaks. The process should be handled by an expert because it can damage the engine in any error. Recheck tasks to ensure that timing marks are properly aligned before starting the engine.

Unplug the cable from the negative battery terminal and facing TDC for number one cylinder, drain the engine oil. Remove drivebelt. Remove of drivebelt tensioner from front cover. Remove the engine front cover. Remove valve cover. Remove timing chain tensioner. Take off upper timing chain guide. Remove exhaust camshaft sprocket bolt. Undo adjustable timing chain guide's access bolt and remove fixed timing chain guide upper mounting bolt at the same time unscrew fixed timing chain guide upper mounting bolt through access hole with screwdriver located on lower camchain housing.Remove intake camshaft sprocket boltly unscrew it out through top of head;timing retainer about head.Invert cylinder block and slide out loose link.Install on camshaft exhaust camshaft sprocket screwing three bolts with specified torque.Install lower timing chain guide.Screw in intake camshaft sprocket for fixing purpose only.Instal uppr fixe timin hain gui desiged t supot upp cha.A wrench should be put on the intake camshaft hex and then tighten intake camshaft bolt.A wrench, placed onto exhaust cahmshat hex will help to tightenthe exhauscshat bo.Istall thathian tnserfosiic over91ding thrugh aperuare.Depending on application, this may be required.Install cylinder heads torquing each head bolts gradually in four steps.Apply small amount of RTV sealant to threads before replacing valve cover.Replace engine plastic covers.Reattach battery terminal wires and check for any leaks.