How to repair the timing chain on a Chevy Sonic?

Apply a 2 mm (0.0787 in) bead of RTV sealant the areas shown above (1, 2). Install the engine front cover gasket (1). Install the two upper timing chain guide bolts (1) and tighten to 8 N•m (71 lb in). Install the upper timing chain guide (2). Install the timing chain (1) and crankshaft sprocket (2) together as a unit.

Where is the TDC on a 17mm camshaft?

Turn the camshaft, with the 17mm socket wrench and ratchet several times to achieve the position described below. The top-toothed pulley that is the camshaft pulley and is found in yellow, has two marks on edge of which corresponds to the TDC (Top Dead Center) and the other at Bottom Dead Center (BDC).

When do I need to synchronize the timing belt?

Engine synchronization is required when changing time band, when a rocker either intake or exhaust is changed when the valve seals are changed, when the flute rocker is changed when a change of rings is pistons, when the valve head gasket is changed, when intake or exhaust valves and their springs are changed, when the valve seats are rectified.

When does a cam line up with the crankshaft?

How does advancing or retarding a camshaft work?

Advancing or retarding the cam pushes the centerline of the camshaft to one side or the other of the crankshaft centerline. This changes the Timing of the valve opening and closing events, in relation to the position of the piston in the cylinder. How is it measured? Find the lobe centerline in relation to the piston’s position in the cylinder.

What happens when a cam is installed straight up?

When a cam is installed “straight-up,” the imaginary centerlines of the two shafts line up exactly. Advancing or retarding the cam pushes the centerline of the camshaft to one side or the other of the crankshaft centerline. This changes the Timing of the valve opening and closing events, in relation to the position of the piston in the cylinder.

How to design balance shaft timing gear alignment?

1. Install the balance shaft drive sprocket. 2. For the 1st design balance chain, install the balance shaft drive chain with the colored links lined up with the marks on the balance shaft drive sprockets and the crankshaft sprocket. There are three colored links on the chain. Two links are of matching colors, and one link is of a unique color.