MTU Detroit Diesel 183 Series Technical Publication page 217

Task Description
20080/1 E 98-12
Position feeler gauge between inlet valve and rocker
arm and/or between exhaust valve and rocker arm.
Note
Valve clearance is set correctly if it is possible to pull
the gauge through with slight resistance.
Gauge 0.60 mm
Gauge 0.40 mm
Gauge retainer
If it is necessary to correct valve clearance, fit valve
setting wrench on adjusting screw, release locknut and
correct valve clearance. Tighten locknut, 50 Nm.
Valve setting wrench
Remove rotator No. 407 589 00 63 00 on gear case.
Group
Subgroup
Page
422 589 01 23 00
617 589 04 23 00
617 589 00 40 00
422 589 00 11 00
05
1122
3