Camshaft, Lifters and Push Rods: Service and Repair
Camshafts, Tappet and Shim Removal and InstallationCAUTION:
^ Keep working table, tools and hands clean while overhauling.
^ Use special care to handle aluminum parts so as not to damage them.
^ Do not expose removed parts to dust. Keep them always clean.
Removal
1. Remove 2nd timing chain.
2. Loosen camshaft housing bolts in such order as indicated in figure and remove them.
3. Remove camshaft housings.
4. Remove camshafts.
5. Remove tappets with shims.
Installation
1. Apply engine oil around tappet (1) and shim, and then install tappets with shims to cylinder head.
NOTE: When installing shim, make sure to direct shim No. side toward tappet.
2. Match match mark (1) on crank timing sprocket and mating surface of cylinder block (3) and lower crankcase (2) as shown in figure.
At this time, make sure that arrow mark (4) on idler sprocket (5) at the position as shown in figure.
3. Install camshafts.
Apply oil to sliding surface of each camshaft and camshaft journal then install them by aligning match marks on cylinder head and camshafts as shown in figure.
4. Install camshaft housing pins (3) as shown in figure.
5. Check position of camshaft housings.
Embossed marks are provided on each camshaft housing, indicating position and direction for installation. Install housings as indicated by these marks.
6. After applying oil to housing bolts, tighten them temporarily first. Then tighten them by following numerical order in figure.
Tighten a little at a time and evenly among bolts and repeat tightening sequence two or three times before they are tightened to specified torque.
Tightening torque
Camshaft housing bolt a: Tighten 11 Nm (1.1 kgf-m, 8.0 ft. lbs.) by the specified procedure
7. Turn crankshaft clockwise then align crankshaft timing sprocket key (1) with timing mark (2).
8. Install 2nd timing chain.
9. Install timing chain cover.
10. Install cylinder head cover.
11. Install oil pan.
12. Install engine assembly to vehicle.
13. Check valve lashes.