Seals and Gaskets: Service and Repair

CAUTION: When removing the oil pans, oil pump assembly and timing chain from engine, first remove the camshaft position sensor (PHASE) and the crankshaft position sensors (REF)/(POS) from the assembly. Be careful not to damage sensor edges.

VALVE OIL SEAL
1. Remove LH ornament cover.
2. Remove RH and LH ignition coils.
3. Remove EGR guide tube.
4. Remove intake manifold collector supports and intake manifold collector (RH cylinder head only).
5. Remove RH and LH rocker covers from cylinder head.
6. Remove camshaft position sensor (PHASE) and crankshaft position sensors (REF)/(POS).
7. Remove oil pan.
8. Remove timing chain.
9. Remove camshaft brackets and camshaft.
10. Remove valve lifters and shims.
11. Remove valve spring with Tool.
12. Reinstall any parts removed in reverse order of removal.

Before removing valve spring, fix valve as follows:
Method A: Piston concerned should be set at TDC to prevent valve from falling.





Method B: Remove spark plug, then install air hose adapter into spark plug hole and apply air pressure to hold valves in place. Apply a pressure of 490 kPa (5 kg/cm2, 71 psi).





Method C: Install spark plug with suitable washer into spark plug hole from combustion chamber side.





13. Remove valve oil seal.





14. Apply engine oil to new valve oil seal and install it with Tool.

OIL SEAL INSTALLING DIRECTION





Install new oil seal in the direction shown in the figure.

FRONT OIL SEAL
1. Remove the following parts:
- Engine undercover
- Front RH wheel and engine side cover
- Drive belts
- Crankshaft position sensor (REF)
- Crankshaft pulley
Be careful not to damage sensor edge.





2. Remove front oil seal using a suitable tool.
Be careful not to scratch front cover.

3. Apply engine oil to new oil seal and install it using a suitable tool.

REAR OIL SEAL




1. Remove transaxle.
2. Remove flywheel or drive plate.
3. Remove oil pan.
4. Remove rear oil seal retainer.





5. Remove traces of liquid gasket using scraper.
- Remove old liquid gasket from the bolt hole and thread.





6. Apply liquid gasket to rear oil seal retainer.