MTU Detroit Diesel 183 Series Technical Publication page 84

Group 01
Subgroup 1205 General
Page 2
Note
If the compression pressure is less than 17 bar or the pressure difference between individual cylinders is greater
than 4 bar, remove the cylinder heads in order to check the valve seats and cylinder bores.
Remove compression pressure recorder and connector. Remove sealing ring from the sealing surface in the
cylinder head.
20080/1 E 98-12