MTU Detroit Diesel 183 Series Technical Publication page 583

Task Description
Distributor housing and cover plate cleaning and repair
Clean components with cold cleaner and brush.
Use only a soft brush to avoid damaging the plates and sealing faces.
To remove lime scale deposits, use lime scale remover which does not attack metal surfaces.
(e.g. Porodox from Henkel or Euron 1308 from Hoechst, concentration from 5% to 10%).
Check all mating faces, sealing faces and bores in distributor housing, cover plate for wear and damage; rub down
with emery cloth or an oilstone if necessary.
Check thread for ease of movement; rechase if necessary or replace insert as required.
Check thread of socket-head screws, pins and nuts for coolant cooler for ease of movement; replace as necessary.
Installation
Raw water inlet elbow removal
Grease elbow (1), raw water inlet, and sleeve (2) with petroleum jelly and insert in coolant distributor housing.
Secure elbow with screws (3) and washers (4) on distributor housing.
Secure sleeve and elbow with screws (5) and washers (6) together.
Install clamping screw (7) in distributor housing, screw plug (16) with new sealing ring (17) in elbow (1).
Raw water outlet elbow removal
Grease elbow (8), raw water outlet, with petroleum jelly and insert in coolant distributor housing.
Secure elbow with screws (9, 10, 11) and washers (12, 13).
20080/1 E 98-12
Group 20
Subgroup 2570b
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