MTU Detroit Diesel 183 Series Technical Publication page 148

Group 01
Subgroup 9751
Page 2
20080/1 E 98-12
Checking
Connect the corresponding long end of the water-
pressure gauge with the oil dipstick guide pipe and fill
the water-pressure gauge up to the "zero mark" with
water.
Start the engine and observe the water level in pressure
gauge.
There is overpressure in the cylinder crankcase if the
water column at the free end of the tube (left) is higher
than at the connected end (right) - ( maximum + 10 mm
water column).
The correct level is indicated as the difference between
the two water surfaces.
Task Description