Chevrolet 91176110 Sprocket,Camshaft Timing,LH (On Esn)

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While replacing and installing the timing belt, be very careful, as any error can lead to serious engine problems. If you don't have much experience in making such repairs, it is better not to risk and consult a good specialist. Never rotate the crankshaft counterclockwise and do not try to turn it using the camshaft sprocket bolt. More so, ensure that no bending, twisting or turning the timing belt inside out occurs; keep it away from oil, coolant or fuel. Do not use the timing belt tension to hold the camshaft or crankshaft while installing pulley bolts. The process involves discharging refrigerant and removing hose from suction pipe for models with AC system. Thereafter, disconnect negative battery cable, support vehicle on jackstands loosen locknuts and adjust valve adjustment screws on 8-valve engines set parking brake block rear wheels. Remove drive belts, fan, fan shroud, water pump pulley and crankshaft pulley bolts (if removing crankshaft center bolt follow specific instructions). Then remove timing belt cover only if reusing belt paint an arrow on it showing direction of rotation. Loosen tensioner pulley and bolt secure tensioner temporarily remove timing belt. In case remove crankshaft sprocket together with belt guide if you plan to replace camshaft oil seal remove camshaft sprocket and cover. Look at all parts carefully for signs of damage or wear. For installation make sure alignment of valve timing marks is correct then slip on timing belt while releasing tensioner. Rotate the crankshaft two complete revolutions retighten tensioner nut temporarily install crankshaft pulley turn another two full revolutions of crank shaft.Re-check valve timing marks alignment retighten tensioner bolt and nut re-install all remaining parts adjust valve clearances let sit overnight when cold for eight-valve engines proceed as required ensuring proper procedures are followed for a successful engine start up road test.

For the smaller timing chain and camshaft sprockets, align the crankshaft sprocket key, arrow mark on the idler sprocket, and knock pins on the camshafts. Install the small timing chain and sprockets, aligning the yellow plate with the arrow mark on the idler sprocket and dark blue plates with arrow marks on the camshaft sprockets.