Fig. 6 - Checking rotor shaft radial play.
Fig. 7 - Checking rotor shaft end play.
Checking rotor shaft radial play - turbine side
(Fig. 6)
Place a dial gauge through the related magnetic base in such a
way that feeler rests on the turbocharger rotor shaft as illustrated
in figure 6.
Set dial gauge to zero and press the hub first downward and then
upward taking the readings shown by the dial hand.
The difference in readings shall result in the rotor shaft radial play
and this shall not exceed 0.46 mm.
Checking rotor shaft end play (Fig. 7)
Fit the dial gauge through the related magnetic base in such a way
that feeler rests on the turbocharger rotor shaft end as illustrated
in figure.
Set dial gauge to zero and move the shaft first to the right and then
to the left taking readings shown by the dial hand.
The difference in both readings shall be the rotor shaft end play
and this shall not exceed 0.16 mm.
If the amount of axial or radial play exceeds the prescribed value,
remove the turbocharger and take it to a specialised service centre
for a general overhaul.
engine
intake and exhaust system
18
1
88
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