Yes it does and depending on the engine some have more then one.
Install the timing chain over the exhaust camshaft sprocket around the coolant pump sprocket and around the crankshaft sprocket. Remove the alignment dowel pin from the intake camshaft. Use the J 39579 in order to rotate the intake camshaft sprocket counter clockwise enough to allow the timing chain to slide over the intake camshaft sprocket.
Release the J 39579. The length of the chain between the two camshaft sprockets will tighten. If properly timed, the intake camshaft alignment dowel pin will slide in easily.
If the dowel pin does not fully index, the camshafts are not timed correctly and the procedure must be repeated. Leave the alignment dowel pins installed. The keyway on the crankshaft and the mark on the cylinder block should be aligned with the slack removed from the chain between the intake camshaft sprocket and the crankshaft sprocket.
If the mark and the keyway are not aligned, move the chain one tooth forward or rearward. Remove the slack and recheck the marks.
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