Engine Alignment - PCM 2006 5.0L MPI Owner's Operation And Maintenance Manual

ENGINE MAINTENANCE - 11

ENGINE ALIGNMENT

CAUTION
Engine must be properly aligned, or vibration, noise
and damage to the transmission output shaft, oil seal,
and bearings may result.
IMPORTANT: For PCM Power-Plus and Walters
V-Drive applications, adjust the engine and
transmission mounts to achieve alignment.
The V-Drive mounts are for support of the V-
Drive unit and are not used to achieve proper
alignment.
REMOVE
MOUNT BOLTS
Figure 11-22 PCM V-Drive
V-DRIVE ALIGNMENT
The V-Drive support mounts must be removed
before performing the engine alignment.
• For the PCM V-Drive, loosen the trunnion bolt
on the mount, then remove the bolts used
to attach the mount to the CVD mounting
bracket. Slide the mount away from the
bracket. Refer to Figure 11-22.
• For the Walters V-Drive, loosen the trunnion
bolt on the mount, then remove the bolts used
to attach the mount to the V-Drive. Slide the
mount away from the V-Drive unit.
Perform the Engine Alignment as outline in the
following steps. When you have completed the
alignment you will need to re-install the mounts
onto the V-Drive unit. The V-Drive mounts may
need to be adjusted so there is no tension on
the mounting bolts as they are re-installed. Re-
tighten the trunnion bolts to complete the V-Drive
alignment.
46
TRUNNION
BOLT
L510010-06
ENGINE ALIGNMENT
IMPORTANT: Engine alignment MUST BE
RECHECKED with the boat in the water, fuel tanks full
and with a normal load on the boat. Engine must be
aligned so that the transmission and the propeller shaft
coupling center lines are aligned, and coupling faces
are parallel within 0.003 in. (0.07 mm). This applies
to installations with solid couplings, as well as fl exible
couplings.
1. Check the mating surfaces on the transmission
and the propeller shaft couplings. Make sure
they are clean and fl at (Figure 11-23).
Figure 11-23 Shaft Mating Surface Check
2. Center the propeller shaft in the shaft log as
follows: (Figure 11-24)
• Push down and then lift the propeller shaft as
far as it will move, then place the shaft in the
middle of the movement.
• Move the shaft to the port and then to the
starboard as far as the shaft will move,
then place the shaft in the middle of the
movement.
• With the propeller shaft in the middle of the
shaft log, align the engine to the shaft.