OEM 2009 Chrysler Aspen Timing Chain

2009 Chrysler Aspen Timing Chain Parts and Q&A

• Q: How to Replace a Timing Chain and Its Sprockets on 2009 Chrysler Aspen?

  A: To start, squeeze the tensioner piston while it is loose, until your hand touches the tensioner body, after which you release the ratchet pawl with a pin and slide the ratchet around 2 mm back from the tensioner body. Place Special Tool 8514 lock pin into the front hole of the tensioner and gradually open the vise to distribute tension to the lock pin. Make sure the main chain tensioner covers the oil pump, add bolts into the first two holes in the tensioner bracket and tighten them to 28 Nm (250 in. lbs.). Mopar(R) Lock N Seal the torx(R) bolt on the right side chain tensioner arm before installing it, tightening it to 28 Nm (250 in. lbs.,) followed by tightening the bolts on the left side chain guide to the same value. TLS Connect the arm on the left side chain tensioner using Lock N Seal and tighten the Torx bolt to 28 Nm (250 in. lbs.), then secure the chain guide on the right side using Lock N Seal and tighten the Torx bolt to the same pressure on the tightening tool. Place both secondary chains onto the idler sprocket, making certain that the visible plated links show through the space below, then use Special Tool 8429 to keep them secure. Place the first few double plated links on the timing mark on the idler sprocket and the first single plated link on the timing mark on the crankshaft sprocket at 6 o'clock. Apply clean oil to the idler shaft and bushings, fit all chains, crankshaft sprocket and idler sprocket in an assembly and use the block and cylinder head openings and fasten them with an elastic strap as you feed the other chains through. Rotate the camshafts a little while holding the chain to place the sprockets in line with the special plated links on the chain. Take away any excess oil from the camshaft sprocket bolt to ensure it isn't over-tightened, then join both sprockets to the camshafts while skipping any bolt tightening. Confirm that the plates on the links are placed where the sprocket marks point and that the camshaft sprocket "V8" marks are at 12 o'clock to make sure the plate beneath the left secondary chain tensioner is put in correctly. Put in the secondary chain tensioners and screw the bolts to 28 Nm (250 in. lbs.) most firmly. First, oil the washer, then tighten the bolt that secures the idler sprocket assembly to 34 Nm (25 ft. lbs.). When all the locking pins are removed, ensure you don't try to manually adjust the tensions, so you don't over-stretch the chains. Apply 122 Nm / 90 ft. lbs. of torque to each bolt of the left and right camshaft sprocket with Special Tool 6958 and Spanner with Adaptor Pins 8346. Make two full turns of the engine and ensure that the primary chain idler sprocket dot is at 12 o'clock, the primary chain crankshaft sprocket dot is at 6 o'clock and the "V8" marks on the secondary chain camshafts are also at 12 o'clock. Pour engine oil on each chain, check that the idler gear has no more than 0.25 mm (0.010 in.) of end play and replace it if the end play exceeds 0.25 mm (0.010 in.). Attach the timing chain cover, crankshaft damper and cylinder head covers, then smear Mopar(R) Thread Sealant with Teflon onto the large threaded access plug and tighten it into the right cylinder head to 81 Nm (60 ft. lbs.). Before you start the precharge, secure the oil fill housing, connect the left cylinder head access plug, power steering pump and fan shroud for the radiator and add coolant to the cooling system-finally, link the negative cable to the battery.