Jeep 52125232AB Engine Mount Insulator

Engine mounts seldom require attention, but broken or deteriorated mounts should be replaced immediately to prevent damage or wear on driveline components. To check the mounts, raise the engine slightly to remove the weight from them. Begin by raising the vehicle and securely supporting it on jackstands, then position a jack under the engine oil pan with a large wood block in between to prevent damage. Carefully raise the engine just enough to relieve the weight from the mounts, and inspect them for cracks, hardened rubber, or separation from the metal backing, noting that rubber can sometimes split down the center. Check for any relative movement between the mount plates and the engine or frame using a large screwdriver or pry bar; if movement is detected, lower the engine and tighten the mount fasteners. Applying rubber preservative can help slow deterioration. For replacement, disconnect the cable from the negative terminal of the battery, raise the vehicle, and support it securely on jackstands if not already done. Place a floor jack under the engine with a wood block in between and raise the engine slightly to relieve the weight from the mounts. Remove the through-bolt from the engine mount and take the mount off the side of the engine block, ensuring not to disconnect more than one mount at a time unless during engine removal. Install the new engine mount assembly to the engine block and tighten the bolts securely. Slowly lower the engine while ensuring proper mount-to-frame alignment, then install the through-bolt and hand-tighten the nut. Completely lower the engine and securely tighten the through-bolt. If necessary, repeat the process for the motor mount on the other side of the engine, with the remainder of the installation being the reverse of removal.