Engine Mounts 01.01 General Information General Description Three mounts support the engine and transmission, holding a total of almost 1800 lb (816 kg). Two of the engine mounts support the rear of the engine and transmission assembly. The third supports the front of the engine/transmission assembly. Each of the rear engine mounts is bolted to the in- side of the frame rail near the flywheel housing. These mounts support legs which are bolted to the flywheel housing. Caterpillar engines use a rear en- gine leg that rests flat on the mount. The front engine mount is an underslung crossmem- ber under the front of the engine. It supports a bracket that is bolted to the front of the engine.
To isolate the engine and transmission from road shock, and to isolate the vehicle frame from engine vibration, the engine mounts are sandwiched be- tween rubber isolator cushions (sometimes called restriction pads). Steel snubbers protect the cushions from wearing on the engine support brackets, and a single bolt runs through the mount, cushions, and snubbers to hold the assembly together and hold the engine on the mount. Business Class M2 Workshop Manual, Supplement 0, January 2002 050/1