Steps 121-134

Camshaft













Removal

NOTICE: During engine repair procedures, cleanliness is extremely important. Any foreign material, including any material created while cleaning gasket surfaces, that enters the oil passages, coolant passages or the oil pan may cause engine failure.

NOTE: The engine comes equipped with either a roller primary timing chain or an inverted tooth primary timing chain.

121. Remove the 2 bolts and the primary timing chain tensioner.





122. Remove the primary timing chain tensioner arm.





123. Remove the 2 bolts and the lower LH primary timing chain guide.





124. Remove the primary timing chain.





LH camshafts

125. Compress the LH secondary timing chain tensioner and install a suitable lockpin to retain the tensioner in the collapsed position.





126. NOTE: The VCT bolt and the exhaust camshaft bolt must be discarded and new ones installed. However, the exhaust camshaft washer is reusable.

Remove and discard the LH VCT assembly bolt and the LH exhaust camshaft sprocket bolt.

- Remove the LH VCT assembly, secondary timing chain and the LH exhaust camshaft sprocket as an assembly.





127. NOTE: When the Camshaft Holding Tool is removed, valve spring pressure will rotate the LH camshafts approximately 3 degrees to a neutral position.

Remove the Camshaft Holding Tool from the LH camshafts.





128. NOTICE: The camshafts must remain in the neutral position during removal or engine damage may occur.

Verify the LH camshafts are in the neutral position.





129. NOTE: Cylinder head camshaft bearing caps are numbered to verify that they are assembled in their original positions.

Remove the bolts and the LH camshaft bearing caps.

- Remove the LH camshafts.





RH camshafts

130. Compress the RH secondary timing chain tensioner and install a suitable lockpin to retain the tensioner in the collapsed position.





131. NOTE: The VCT bolt and the exhaust camshaft bolt must be discarded and new ones installed. However, the exhaust camshaft washer is reusable.

Remove and discard the RH VCT assembly bolt and the RH exhaust camshaft sprocket bolt.

- Remove the RH VCT assembly, secondary timing chain and the RH exhaust camshaft sprocket as an assembly.





132. Remove the Camshaft Holding Tool from the RH camshafts.





133. NOTICE: The camshafts must remain in the neutral position during removal or engine damage may occur.

Rotate the RH camshafts counterclockwise to the neutral position.





134. NOTE: Cylinder head camshaft bearing caps are numbered to verify that they are assembled in their original positions.

Remove the bolts and the RH camshaft bearing caps.

- Remove the RH camshafts.