OEM 2005 Chevrolet Cobalt Timing Chain

2005 Chevrolet Cobalt Parts Questions & Experts Answers

• Q: What tools are required to replace the timing chain, sprockets, or tensioner on 2005 Chevrolet Cobalt?

  A: The tools required to replace the Timing Chain, sprockets or tensioner include: tensioner tool (J 45027). Start with removal of Camshaft cover and lifting of vehicle. Then, take off the engine front cover and drop the vehicle. With a 24 mm open-end wrench turn the Camshaft clockwise, so that the no. 1 piston is facing about 60 degrees short of the top dead center. Then, remove the spark plugs for easier rotation and subsequently the Timing Chain Tensioner, fixed Timing Chain Guide access plug, fixed Timing Chain Guide, and upper Timing Chain Guide. Use a 24mm wrench to chain the tenths while you take away the exhaust Camshaft sprocket bolt and sprocket, then the Timing Chain Tensioner guide, intake Camshaft sprocket bolt and sprocket, the Timing Chain, through the top of the cylinder head. Spool off crankshaft sprockets, oil nozzle and bolt, balance shaft drive tensioner, adjuster balance shaft chain guide, small balance shaft drive chain guide, upper balance shaft drive chain guide. For the ease of removal of balance shaft drive chain, take care to have all slack between crankshaft and water pump sprockets. With installation, install upper balance shaft chain guide, tighten the screws into 10 nm (89 inch lbs.). Mount the balance shaft drive chain, attaining the colored links to the timing marks on the sprockets, the small balance shaft chain guide, the adjustable balance shaft drive chain guide and tightening their bolts to 10 nm (89 inch lbs). Turn the tensioner plunger by 90 degrees and squeeze it, then tuck a paper clip before installing the Timing Chain Tensioner and doing the bolts up to 10 nm (89 in lbs). It is required to take away the paper clip, install oil nozzle and bolt, tightening from 10 nm (89 inch lbs.), which includes the installation of sprocket for crankshaft in the position of a mark with the times 5 letterminutes. Lower Timing Chain through the cylinder head opening, making sure it is around the cylinder block bosses, installing the intake cam shaft sprocket with int diamond located in 2 o'clock position, then tighten a new sprocket bolt with hands. Route the Timing Chain around the crankshaft and intake Camshaft sprockets, matching the same colored links. Install the Timing Chain Tensioner guide and tighten its bolt to 10 nm (89 inch lbs.), and then install the exhaust Camshaft sprocket with the Timing Chain matching colored link at the exh triangle at the 10 o.clock posture. Turn the Camshaft slightly to line up the exhaust sprocket, tightening a new sprocket bolt by hand. Install the fixed Timing Chain Guide and apply the bolts with a torque of 10nm (89 inch lbs.), apply sealant at the Timing Chain Guide bolt access hole plug then tighten to 90 nm (59 ft. Lbs). Fit the Timing Chain upper guide and tighten its bolts to 10 nm (89 inch lbs). Examine the Timing Chain tension and, if necessary, replace it. Put on the mechanic's gloves and gown, and protect the area around the Timing Chain Tensioner assembly using the paper towels, then measure the Timing Chain Tensioner assembly simply by pressing its central lid down until the rubber indicates that it has reached maximum tension. Pelicula onlinegratis it should be 72 mm (2.83 inch), when compressed entirely. Otherwise, then extract it correctly according to the steps. Install and tighten the Timing Chain Tensioner to 75 nm (55 ft. Lbs.). I will then have the use of an appropriate tool in order to release the tensioner then with the help of a 24 mm wrench, i will hold the Camshaft and tighten the new Camshaft bolts to the 85 nm (63 ft. Lbs.) plus 30 degrees. Lastly, install the Camshaft cover, lift the vehicle, install the engine front cover, lower down vehicle, jump start the negative Battery Cable.