Examination
When checking, the engine should be raised slightly to take the weight off the brackets.
Raise the vehicle and support it securely on jack stands, then place a jack under the engine crankcase. Place a large block of wood between the crankcase and jack, then lift the engine up a little to take the load off the brackets.
Attention: Do not stand under the engine when its weight is only supported by the jack!
Check the rubber feet of the brackets to see if the rubber has cracked, hardened, or come loose from the metal parts. Sometimes the rubber breaks right down the middle.
Check for relative movement between bracket plates and motor or frame (use a large screwdriver or pry bar to try to move the brackets). If movement is detected, lower the engine and tighten the bracket bolts.
Protective compound should be applied to the rubber mounts to prevent degradation of the rubber.
Replacing engine mounts
engine mounts
1 - central beam;
2 - front support;
3 - rear support;
4 - right support;
5 - left support.
Disconnect the negative cable from the battery, then raise the vehicle and securely support it on stands (if it hasn't already been done).
Turn away bolts and nuts, disconnect an arm from the central beam.
Raise the engine slightly with a jack or winch. Turn away bolts between support and the engine, remove support.
Reinstallation is carried out by performing the above steps in reverse order. Use a special hardener on the threads of the bracket bolts, and tighten the bolts securely.
Remember that the front and rear hubs are different shapes.
I - front bushing;
II - rear hub.