Genuine Saturn LS1 Variable Timing Sprocket

Saturn LS1 Variable Timing Sprocket Parts Questions & Experts Answers

• Sprocket,Camshaft
  90537632
  Q: How do you remove and install timing belt and Sprocket on V6 engine for Saturn LS and LS1?

  A: To start, unplug the cord from the negative terminal of the battery and remove the timing belt cover. Set engine at TDC for cylinder number one, then turn crankshaft counter-clockwise to 60 degrees before TDC, and pull out spark plugs. Now put on crankshaft locking tool on its place and turn in a direction clockwise until it stands against water pump pulley flange. This places engine at TDC number 1. Next, use tools to hold camshaft sprockets in place while also loosening timing belt tensioner, upper timing belt guide pulleys and lower timing belt guide pulleys so that you may release belt tension. Take off timing belt with camshaft sprockets if necessary. Inspect teeth of sprocket, timing belts; check how camshafts play axially in slots; make sure that there is no wear or damage on the Timing Belt Tensioner; and change any defective part. Ensure that we examine water pump too for its condition as well as clean up our working area around Timing Belt thoroughly together with the sprocket's teeth being washed by lacquer thinner. If we had removed them reinstall Timing Belt Sprockets ensuring their keys are still intact; position mark on these sprockets depending upon which side of keyways they are located into install Crank Shaft Locking Tool over there after removing marks from Teeth of these Pulleys (note: each tooth corresponds to some number). Take off Crank Shaft Locking Tool only after checking whether all Timing Marks coincide perfectly or not Remove crankshaft lock tool depending on engine type following either Engines Before 578511 instructions or Engines After 578512 ones For Engines before 578511 mark time belt guide pulleys positions and fit time belt over camshafts gears ,lower guide pulley and crankshaft gear using a wedge to keep everything stationary Install Time Belt around Tensioner , rear camshafts sprockets and below upper timing belt guide pulley; afterwards adjust positions of these pulleys correctly and tighten the Timing Belt properly. Recheck alignment marks, remove crankshaft lock tool and turn engine to make sure that everything is aligned Tighten pulleys and torque tensioner bolt again. Check all alignment marks Install time belt cover and connect battery back up For Engines after 578512 use tools to check camshaft timing marks Install time belt around rear camshafts sprockets/tensioner/upper timing belt guide pulley/front camshafts sprockets using a gauge that fits on them if necessary; As you rotate them, please don't forget to fully tension it Remove crankshaft lock tool , turn engine to verify alignment, recheck crankshaft & camshaft marks Install time belt cover and connect battery back up Remaining installation steps are just removal process in reverse.
• Sprocket,Water Pump
  90537298
  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.