Lexus 35106-33061 Pan Sub-Assy, Automatic Transaxle Oil

The manufacturer recommends removing the engine and transaxle assembly to perform this procedure. To begin, drain the engine oil. Next, remove the bolts and nuts securing Oil Pan No. 2 to the larger cast aluminum oil pan. If it is stuck, tap it loose with a rubber-tipped mallet or carefully cut the sealant with a putty knife and hammer. Remove the oil pump pickup tube/strainer assembly and then the bolts and nuts securing oil pan No. 1 to the engine block. Carefully pry the oil pan loose from the engine block, being cautious to only pry in the designated areas. Remove the O-rings from the bottom of the engine block and, if necessary, the sheet metal baffle plate. For installation, first install the baffle plate if it was removed. Clean the mating surfaces of the block and oil pan and ensure the threaded holes in the block are clean. Install new O-rings on the block and check the flange of the steel oil pan for distortion. Flatten and restore the gasket surface if needed. Inspect and clean the strainer before installing it with a new gasket. Apply RTV sealant to the upper oil pan flange and position the pan onto the block, tightening the fasteners in several steps. Apply RTV sealant to the flange of the No. 2 oil pan, position it on the upper oil pan, and install the bolts. The remainder of the installation is the reverse of removal. Add oil, install a new filter, run the engine, and check for leaks.

Disconnect the cable from the negative battery terminal. Set the parking brake and block the rear wheels. Raise the front of the vehicle and support it securely on jackstands. Remove the two plastic splash shields under the engine, if equipped. Drain the engine oil and remove the oil filter. Remove the oil dipstick. Remove the bolts and detach the oil pan. If it's stuck, pry it loose very carefully with a small screwdriver or putty knife. Don't damage the mating surfaces of the pan and block them, or oil leaks could develop. Use a scraper to remove all traces of old sealant from the block and oil pan. Clean the mating surfaces with brake system cleaner. Make sure the threaded bolt holes in the block are clean. Check the oil pan flange for distortion, particularly around the bolt holes. Remove any nicks or burrs as necessary. Inspect the oil pump pick-up tube thoroughly for cracks and a blocked strainer. If the pickup was removed, clean it thoroughly and install it now, using a new gasket. Tighten the nuts and bolts to the torque. Apply a 3/16-inch-wide bead of RTV sealant to the mating surface of the oil pan. Carefully position the oil pan on the engine block and install the oil pan-to-engine block bolts loosely. Working from the center out, tighten the oil pan-to-engine block bolts to the torque in three or four steps. The remainder of installation is the reverse of removal. Be sure to wait at least one hour before adding oil to allow the sealant to properly cure. Run the engine and check for oil pressure and leaks.

The manufacturer recommends removing the engine and transaxle assembly to perform this procedure. There are two oil pans: a lower oil pan that mounts to the upper oil pan and an upper sub-assembly oil pan that mounts to the engine block. Begin by draining the engine oil. Next, remove the bolts and nuts securing the smaller stamped steel oil pan to the larger cast aluminum oil pan. The smaller oil pan may be stuck due to RTV sealant; gently tap it loose with a rubber-lipped mallet or carefully cut the sealant with a putty knife and hammer, ensuring not to damage the mating surfaces. Remove the two oil pump pickup tube/strainer mounting nuts and the brace bolt, then take out the pickup/strainer assembly. Proceed to remove the bolts and nuts securing the larger oil pan to the engine block, and carefully pry it loose, only in the small cutout areas along the side. Remove the two O-rings from the bottom of the engine block, and if necessary, the sheet metal baffle plate can be taken out at this time. For installation, if the baffle plate was removed, reinstall it and tighten the fasteners to the specified torque. Use a scraper to eliminate all traces of old sealant from the block and oil pan, and clean the mating surfaces with brake system cleaner. Ensure the threaded holes in the block are clean, then install new O-rings, securing them with clean grease if needed. Check the flange of the steel oil pan for distortion around the bolt holes; if necessary, flatten it on a wood block with a hammer. Inspect the strainer for cracks or blockage, clean it with solvent, and install it with a new gasket, tightening the fasteners to the specified torque. Apply a 1/8-inch bead of RTV sealant to the upper oil pan flange, position the pan onto the block, and install the fasteners, tightening them from the center out to the specified torque. After installing the aluminum portion of the oil pan, apply a bead of RTV sealant to the flange of the smaller oil pan, position it on the upper oil pan, and install the bolts, tightening them from the center out to the specified torque. Finally, the remainder of the installation follows the reverse order of removal; add oil and install a new filter, then run the engine and check for leaks.

Remove the oil pan baffle plate, if equipped.