Saturn 10448575 Motor Mount

Engine mounts are virtually trouble-free, unless a mount is cracked or worn, then it should be replaced to avoid causing damage to the drivetrain. During the check, the engine must be lifted somewhat to take the load off the mounts. To do this, lift the vehicle and supporting it on jack stands properly and placing the jack just below the engine oil pan with a large timber between the jack head and oil pan, try to raise the engine in such a way so as to unload some weight on the mounts without use of a jack. If the mounts become cracked, harden or separate, it sometimes can split down the centre; using rubber preservative or WD-40 may reduce the rate of deterioration. Insert a large screwdriver or prybar between the mount plates and the engine or frame and look for any relative movement, which will cause the adapter to crack or break; before condemning the mounts check the tightness of the mount fasteners. To remove the mounts, unbend the cable from the negative terminal of the battery, then again, lift the car on jackstands and unscrew the nuts which connect the mount studs with the engine subframe. Engines must be lifted with an engine hoist from the top of the engine so as not to apply pressure to the oil pan, and the use of a jack is prohibited for this purpose; if a hoist is not present, the cast lugs on each side of the engine block must be used to support the weight of the engine during the change of the mount. This is done by raising the engine slightly until the mount can be unbolted from the block, then withdrawn from the vehicle. Installation is the reverse of this and for the mount bolts use non-hardening thread-locking compound and that the bolts should be tightened to the torque specified.