Question 1

How to Service and Repair the Timing Chain,Variable Timing Sprocket and Timing Chain Tensioner on Chevrolet Malibu?

Accepted Answer

Open the front cover of the engine to change the timing chain, sprockets or tensioner. Position the #1 Piston at top dead center (#4 firing position) and align the mark on the camshaft sprocket with the timing mark on the bottom of the timing chain dampener . Take of the camshaft sprocket bolt and after the camshaft sprocket follow by the timing current and the timing chain dampener. If the sprocket is not easy to remove, you can gently tap the bottom edge of it using the plastic mallet to knock it loose. Use the j 5825- a (Crankshaft Gear Puller). Pull off the crankshaft sprocket. For installation, apply the j 38612 (Crankshaft Sprocket Installer) to install a crankshaft sprocket with a prelude gm p/n 1052365 or an equivalent on the crankshaft sprocket thrust surface. Install the timing chain dampener and bolt with a torque of 21 nm (15 ft. Lbs.). Line up the crankshaft timing mark with the timing mark at the top of the timing chain dampener . While supporting the camshaft sprocket with timing chain hanging toward the bottom, fit the timing chain to the crankshaft gear. Set the timing mark on the camshaft gear with the timing mark on top of timing chain dampener and make sure the dowel in the camshaft fits the dowel hole in the camshaft sprocket. Mount the camshaft sprocket on the camshaft with the help of the mounting bolt, oil the crankshaft and camshaft sprocket using engine oil and tighten the camshaft sprocket bolt to 140 nm (103 ft. Lbs.). At last, replace the engine front cover.

Question 2

How to replace the camshaft timing chain, sprocket, and tensioner on Chevrolet Malibu?

Accepted Answer

The repair process for changing a Camshaft Timing Chain starts with the removal of the number 1 cylinder's Spark Plug followed by turning the Crankshaft to a clockwise direction until the number 1 Piston gets to top dead center (TDC) on the exhaust stroke. Start by taking off both the Camshaft cover and the engine front cover. First detach upper Timing Chain guide bolts and guide while also extracting the tensioner unit to release tension from the chain. Use a 24 mm wrench to hold the exhaust Camshaft during the procedure after you remove the Timing Chain Tensioner. The exhaust Camshaft actuator bolt needs to be discarded before you extract the actuator from the Camshaft and Timing Chain. After you extract the Timing Chain Tensioner guide bolt with its guide remove the fixed Timing Chain guide access plug together with its guide bolts and guide. When working on the intake Camshaft actuator maintain the steps exactly like the exhaust Camshaft actuator but use the top of the cylinder head to extract the Timing Chain then remove the Timing Chain Crankshaft sprocket. For a balance shaft Timing Chain or sprocket replacement the technician must unfasten the balance shaft drive chain tensioner bolts while also removing the tensioner and the adjustable and small balance shaft drive chain guides. Proper installation of the balance shaft drive sprocket requires correct balance shaft timing to prevent engine vibration. The balance shaft drive chain undergoes installation with timed colored links facing the timing marks on both sprockets before installing the upper and smaller chain guides followed by the adjustable guide and tightening all components to torque specs. Reset the Timing Chain Tensioner through plunger compression followed by securing it with a paper clip. Mount the balance shaft drive chain tensioner correctly while double-checking that the intake and exhaust Camshaft notches maintain proper alignment. Before assembly place the Timing Chain drive sprocket so its timing mark faces the proper orientation then position the intake Camshaft actuator with its timing mark matching the colored link. Guide the Timing Chain along the Crankshaft sprocket pathway while keeping both colored links and timing marks in sequence. Fit the fixed Timing Chain guide onto the assembly while installing its bolts next add the upper Timing Chain guide and torque it to the indicated value. Before installing the Timing Chain Tensioner assembly technician needs to reset the Timing Chain Tensioner and inspect the seal for damage and ensure the threaded hole remains clean. Start by releasing the Timing Chain Tensioner then apply torque to the intake and exhaust Camshaft actuator bolts using the angle meter to reach a specified torque measure along with an additional angular measurement. Installation of the Timing Chain oiling nozzle is followed by applying sealant to the Timing Chain guide bolt access hole plug which should be installed and tightened to specification before reinstalling both engine front and Camshaft covers along with the number 1 cylinder Spark Plug.

OEM Chevrolet Malibu Timing Chain

14 Timing Chains found

Chevrolet Malibu Timing Chain Part Number: 10166352

Chevrolet Malibu Timing Chain Part Number: 55569250

Chevrolet Malibu Timing Chain Part Number: 12672278

Chevrolet Malibu Timing Chain Part Number: 12637744

Chevrolet Malibu Timing Chain Part Number: 12637743

Chevrolet Malibu Timing Chain Part Number: 12627107

Chevrolet Malibu Chain Part Number: 12626983

Chevrolet Malibu Timing Chain Part Number: 24506090

Chevrolet Malibu Timing Chain, Green Line Part Number: 24461834

Chevrolet Malibu Chain Part Number: 12636528

Chevrolet Malibu Timing Chain Part Number: 24574447

Chevrolet Malibu Camshaft Gear, Green Line Part Number: 12604864

Chevrolet Malibu Timing Chain Part Number: 12600850

Chevrolet Malibu Drive Chain Part Number: 24575147

Chevrolet Malibu Timing Chain

Chevrolet Malibu Timing Chain Parts and Q&A

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