Lexus 12372-20010 Insulator, Engine Mounting, LH(For Transverse Engine)

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Engine mounts seldom require attention, but broken or deteriorated mounts should be replaced immediately to prevent damage or wear on the driveline components. During the check, the engine must be raised slightly to remove the weight from the mounts. Raise the vehicle and securely support it on jackstands. Then, position a jack under the engine oil pan. Place a large block of wood between the jack head and the oil pan, and carefully raise the engine just enough to take the weight off the mounts. Do not position the wood block under the drain plug. Check the mounts to see if the rubber is cracked, hardened, or separated from the metal plates. Sometimes, the rubber will split right down the center. Check for relative movement between the mount plates and the engine or frame. Use a large screwdriver or pry bar to attempt to move the mounts. If movement is noted, lower the engine and tighten the mount fasteners. Apply rubber preservative to the mounts to slow down deterioration. Disconnect the negative battery cable from the battery. Then, raise the vehicle and securely support it on jackstands if not already done. Support the engine. To remove the right engine mount, remove the nut and withdraw the through-bolt from the frame bracket. Remove the mount-to-bracket nuts and detach the mount. To remove the rear engine mount, pull the rubber plugs from the chassis to access the three nuts. To remove the front engine mount, remove the nut holding the insulator to the engine bracket, then remove the three bolts holding the insulator to the chassis. Installation is the reverse of removal. Use thread locking compound on the mount bolts/nuts and be sure to tighten them securely. For transaxle mount replacement, follow the same procedure.

The rear mount on V6 models has a different engine mounting bracket that cradles the insulator. It is retained by a through-bolt to the chassis bracket.