How do you put a timing mark on a crankshaft?
Turn the crankshaft sprocket clockwise until the timing marks on the sprocket are aligned with the mark on the block at the 1 o’clock position. Make sure that the camshaft sprocket is aligned through the use of the small hole in the sprocket. The small hole should be straight up and you should see the mark on the cam bearing through the hole.
How do you replace timing seal on 4.3 car?
Loosen the fan pulley bolts, but do not remove them. Rotate the tensioner pulley toward the center of the engine, using the appropriate socket, to loosen tension on the belt. Lift the belt off the pulleys. Remove the fan pulley bolts and shroud as an assembly.
How do you change the timing on a car?
Support the engine with the floor jack and remove the right hand side motor mount and bracket. Raise the engine slightly and remove the timing belt cover and the crankshaft pulley bolt and the pulley. Turn the engine clockwise until the crankshaft timing marks are lined up.
How do you change the timing on a spark plug?
Loosen the distributor hold down bolt and turn distributor until the rotor is lined up with the mark you made in Step 3. Your timing is now set to zero degrees of mechanical timing. Replace the valve cover using a new gasket. Replace the spark plugs and spark plug wires using the marks from Step 1.
How do you install a timing gear on a Chevy?
In other words, the two indentations must point towards each other. Unfasten and remove the three bolts that secure the upper timing chain gear to the tip of the camshaft, then pull the upper timing chain gear off the camshaft and pull the chain off the bottom gear. Remove the bottom gear from the crankshaft with a gear puller tool.
How are timing gears connected to the crankshaft?
Connecting the timing gears is a single chain. The purpose of the gears and the chain is to ensure that the camshaft and the crankshaft rotate in unison. The timing gears are fairly durable, but the teeth on the gears can become worn. More frequently, the chain itself stretches.
How do you put timing chain on sprocket?
(If you are using a multi-indexed sprocket like the one on the left, be sure that the slot marked zero is the one you are aligning with the key on the crankshaft.) Place the timing chain onto the cam gear and then over the crankshaft gear as you slide the lower gear over the keyway and into place.
Where is the timing chain on a Chevy small block?
Slide the lower timing gear onto the tip of the crankshaft, then wrap the timing chain around the lower gear. Wrap the timing chain around the upper timing chain gear, then press the upper gear onto the tip of the camshaft. Note that a metal dowel on the camshaft slides through a hole next to the center of the upper gear.