Inspect all rubber-cushioned mounts for cracks and other damage. Look for interference or contact between metal components. Inspect all mounting brackets for cracks and damaged bolt holes. Inspect the mounting cap screw to make sure it is not too long, which will not provide enough preload on the mount. Replace any damaged parts as necessary.… Read More »
Use a hoist or lifting fixture to support the engine. NOTE: When removing the engine mount fasteners, note the location of any shims or spacers used. Remove the cap screws from the engine mounts. NOTE: Certain applications will require loosening of the rear engine mount fasteners to allow removal of the front engine support bracket.… Read More »
Some vibration exists in all piston type engines, due to the pulsating power inputs and reciprocating components. Some of these vibrations are internal to the engine and are compensated, or balanced, by opposing forces within the engine structure. These are generally not of interest to vibration isolation designs. The vibrations that are offset or balanced… Read More »
Heat the new ring gear for 20 minutes in an oven preheated to 127°C [261 °F]. The ring gear must be installed so the bevel on the teeth is toward the crankshaft side of the flywheel. Install the ring gear.
Use the brass drift pin to drive the ring gear from the flywheel.
Rear Gear Train NOTE: Before installing the flywheel housing, make sure any locating dowel rings are in the same position as when the flywheel housing was removed. NOTE: The sealant called for in the following step can appear different than what was originally used to build the engine. Apply a 1.5 to 2.0 mm [0.06… Read More »
For wet flywheel housings, apply pipe sealant, Part Number 3375066, to any threaded plugs previously removed. Install and tighten the plugs. Refer to Procedure 017-007 in Section 17. Install the access plate and new gasket. Install the cap screws and tighten. Torque Value: 24 N•m [ 212 in-lb] NOTE: If a gasket was not previously… Read More »
Attach the dial indicator gauge, Part Number 3376050, to the crankshaft. Use mounting tool, Part Number ST1325, to attach the dial indicator to the crankshaft as illustrated. NOTE: The dial indicator can be mounted by any method that holds the extension bar of the indicator rigid, so it does not sag. If the bar sags… Read More »
Face alignment is determined by calculating the total indicator reading (TIR}. Attach the dial indicator gauge, Part Number 3376050, to the crankshaft. Use mounting tool, Part Number ST1325, to attach the dial indicator to the crankshaft as illustrated. NOTE: The dial indicator can be mounted by any method that holds the extension bar of the… Read More »
NOTE: Follow this step only if the flywheel housing (or rear gear housing for rear gear train engines) is being replaced or if troubleshooting a vibration/alignment issue. It is not necessary to measure bore alignment or face alignment when installing the original flywheel housing unless the dowel rings were removed during a previous repair. Install… Read More »