Volvo Penta TAD1630G Workshop Manual page 116

Service procedures - intake and exhaust systems Group 22
Measuring radial clearance
Place a rocking arm dial indicator with its measuring point on
the compressor wheel hub.
Press down the wheel at the same time as the rotor on the
opposite end of the shaft is pushed upwards. Set the indica-
tor to zero.
Pull the wheel upwards at the same time as the rotor at the
opposite end of the shaft is pushed downwards.
Radial clearance:
Max. (compressor side) 0.72 mm (0.028").
For TD164KAE max. 0.18 mm (0.007").
For TWD1620 and TID162 max. 0.15 mm (0.006").
IMPORTANT! Radial play shall be measured when the tur-
bine shaft is offset in parallel.
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