REMOVAL & INSTALLATION
This is a one piece seal and can be replaced without removal of the oil pan or crankshaft.
- Remove the transaxle assembly as outlined in the Transaxle removal procedures in .
- Remove the six flywheel attaching bolts and the flywheel (automatic).
- If equipped with a (manual) transaxle, remove the pressure plate and disc.
- Pry out the rear main seal.
- Clean the block and crank-shaft-to-seal mating surfaces.
- Lubricate the outside of the seal for ease of installation and press into the block with your fingers.
- Install the seal with a Seal Installer tool No. J34924-A or equivalent.
- Install the flywheel and torque the bolts to the specification in the Torque Specifications chart in the beginning of the section.
- Install the transaxle assembly.
- Remove the engine and mount it on a suitable stand as outlined in the Engine removal procedures in this section.
- Remove the oil pan and oil pump assembly.
- Remove the front cover, then lock the chain tensioner with a pin, but do not force.
- Rotate the crankshaft until the timing marks on the cam and crank sprockets align.
- Remove the camshaft bolt, cam sprocket and timing chain.
- Rotate the crankshaft to the horizontal position.
- Remove the rod bearing nuts, caps and bearings.
Mark each component so not to mix up bearing caps or bearing.
- Remove the crankshaft and the old oil seal.
- Apply a light coat of Assembly Lube® or equivalent to the outside of the seal.
- Install the new seal and tool in the rear area of the crankshaft.
- Install the crankshaft and tool in the engine.
- Position the seal tool so that the arrow points toward the cylinder block and remove the tool.
- Put a light coat of oil on the crankshaft journals.
- Seal the rear main bearing split line surface with G.M. 1052726 or equivalent.
- Install the connecting rod and crankshaft caps and torque to the specifications in the Torque Specifications chart in the beginning of this section.
- Install the oil pump assembly as torque the bolts to 30 ft. lbs. (41 Nm).
- Install the camshaft sprocket and timing chain cover, oil pan and install the engine into the vehicle as outlined in the Engine installation procedures.
- Refill the engine with engine oil, coolant and transaxle fluid. Start the engine and check for leaks.
If equipped with an manual transaxle, remove the pressure plate and the clutch.
- Remove the flywheel from the crankshaft.
- Using a small prybar, pry the rear oil seal from the housing.
When prying the oil seal from the housing, be careful not to damage the machined surfaces.
- Using the seal installation tool J-34686, lubricate the new oil seal lip and slide it onto the installation (dust lip side against the tool) until it seats against the tool.
- Align the installation tool's dowel pin with the dowel pin hole in the crankshaft. Torque the mounting screws to 2-5 ft. lbs.
- Turn the "T" handle and push the seal into the housing, until it bottoms out against the housing.
- Loosen the "T" handle until it comes to a stop. Remove the mounting screws of the installation tool.
- Check the seal and make sure that it is squarely seated in the bore.
- Install the flywheel and torque to specifications in the Torque Specifications in this section.
- Install the transaxle as outlined in the Transaxle installation procedures in .
- Refill the engine with engine oil. Start the engine and check for oil leaks.