Genuine Saturn LS Timing Chain

Saturn LS Timing Chain Parts Questions & Experts Answers

• Chain Assembly, Timing
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  Q: How to remove and replace the timing chain and Sprocket in four cylinder engine for Saturn LS and LS1?

  A: Remove the negative cable in the battery terminal. Set the engine at TDC for cylinder number one. Drain the engine oil. Disconnect the drivebelt. Remove the drivebelt tensioner from the front cover. Take off engine front cover. Take off valve cover. Remove timing chain tensioner. Take off upper timing chain guide. Remove bolt in exhaust camshaft sprocket. The adjustable timing chain guide is being removed by us? Unscrew access bolt and remove fixed timing chain guide upper mounting bolt(s). Every part is important, including but not limited to a fixed timing chain guide lower mounting bolt(s)-remove this part(s). Remove intake camshaft sprocket bolt first. Remove timing chain through top of cylinder head. Slide off timing chain oiling nozzle and then take out timing chain drive sprocket from engine block . Everything should be cleaned with solvent and dried with compressed air before inspecting it. Chain tensioner inspection: excessive wear or other damage to be checked for here? What about their condition of deep grooves, excessive wear or other damage? The situation when you find out that it was worn so much or damaged beyond recognition is possible here as well as with chipped or broken teeth on crankshaft and camshaft sprockets or even their excessive wear (they might have been used already). There should not be any doubt as to any of them; they are doubtful parts that need to be replaced urgently, aren't they? If it has been rotated during this procedure, then make sure that it is number one piston at its top stroke during its rotation just after having rotated crankshaft once again in order to set it for TDC on first cylinder thus rotating its crankshaft slightly until TDC marks align up properly (this will allow you) before rotating your crankshaft again until you see "TDC" mark coming into sight when turning slowly over time without disengaging starter motor which is producing sound like it was starting up once again whereas it still remains motionless. Mount intake camshaft sprocket on camshaft. Install timing chain by lowering it from the top through the opening. Drape timing chain over crankshaft sprocket and engage plated link on chain with crankshaft sprocket timing mark. Put adjustable timing chain guide on its place. Mount exhaust camshaft sprocket on camshaft. Position fixed timing chain guide in its place. Get upper timing chain guide attached to engine block itself-this could be done by fixing it securely under its cover, which should be pushed back until reaching its original position after being released so as not to move while tightening nuts at all or fall off just like that. Install a wrench on the intake camshaft hex and tighten the intake camshaft bolt using a torque wrench. Install a wrench on the exhaust camshaft hex and tighten the exhaust camshaft bolt using a torque wrench. Install the timing chain tensioner(s). Place/Install the Timing chain oiling nozzle(s). Put some RTV sealant on threads and install Timing chain guide access plug(just) enough for securing it tightly into place till release of pressure(being loose), which will allow you to unscrew it easily whenever required since you have tightened too much already before letting anything out at all except releasing/loosening them completely until releasing/loosening them fully instead though because they might still keep everything else firmly held together afterwards despite loosening slightly beforehand somewhere along those lines without help coming from any other source whatsoever except ourselves including me once/if necessary assuming nobody else can do this job better than us here? Put valve cover on top of engine block and align holes of upper gasket (between cylinder head lower part) with studs so that leakage will not occur between them while tightening bolts/nuts down tightly without forgetting about special washers as well if available then remove these items too before tightening another four nuts holding it against its lower half? Attach engine front cover back onto engine block afterwards since there is only one way how you could possibly go wrong while placing it back inside its original position where it belongs once everything has been completed successfully for now on except lastly when reconnecting your battery again after which running your car's engine would be quite advisable especially if something like oil or even coolant leakage is noticed anywhere near them whatever they are.