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Exploded view of the timing belt assembly-2.7L engine
Before servicing the vehicle, refer to the Precautions section.
Remove or disconnect the following:
Using a 16mm wrench, rotate the tensioner arm clockwise about 14 degrees and remove the drive belt.
Power steering pump pulley, idler pulley, tensioner pulley and crankshaft pulley
Upper and lower timing covers
Timing belt tensioner
Rotate the crankshaft clockwise and align the timing mark to set the No. 1 cylinder to Top Dead Center (TDC). Make sure the timing marks of the camshaft sprocket and cylinder head cover should align with each other.
If reusing the belt, mark the direction of rotation on the belt to ensure proper belt installation.
Unbolt the tensioner and remove the belt.
Hold the flange of the camshaft with a wrench, unfasten the sprocket bolts and remove the sprockets.
Install or connect the following:
Idler pulley on the water pump boss
Idler pulley to the roll pin that is pressed in the water pump boss
Tensioner arm and plain washer to the block
Tensioner pulley to the tensioner arm
Camshaft sprockets and align the timing marks. Tighten the bolts to 65-80 ft. lbs. (90-110 Nm).
Compress the tensioner and install a set pin to keep the plunger in position.
Tensioner and tighten the bolt to 14-20 ft. lbs. (20-27 Nm)
Align the sprocket timing marks and install the belt in the following order:
Camshaft sprocket on the left hand side
Water pump pulley
Camshaft sprocket on the right hand side
Remove the tensioner set pin.
Adjust the timing belt tension as follows:
Rotate the crankshaft 2 turns clockwise and measure the projected length of the auto tensioner at TDC after being installed for 5 minutes.
The projected length should be 6-8mm. Make sure the timing marks are in their specified positions or remove and reinstall the belt.
Upper and lower timing belt covers
Correct timing marks alignment with the timing belt installed-2.7L engine
Remove the set pin from the auto tensioner-2.7L engine
The projected length of the auto tensioner at Top Dead Center (TDC) should be 6-8mm-2.7L engine
Does not have to be marked. The timing marks are as shown. You are not reusing the old belt, do not have to mark.
Rear left would be number 1. You want to get a stick that can fit into the spark plug hold and rest on the piston, put it in and mark where it comes out. Masure the rest and make sure they are all the same. I am sure once you align the bottom timing mark (crankshaft) you will have them all exactly the same.
2003 Jetta left rear window blue plastic part of the