MTU Detroit Diesel 183 Series Technical Publication page 577

Task Description
Clean profile gaskets of plates, check for damage.
If gasket is damaged, replace respective channel plate.
Repair work may involve the manufacturer replacing the rubber, if necessary.
Check leak-off grooves (in rubber seals).
In unpressed condition, leak-off groove must be approx. 8 mm wide.
If leak-off groove is pressed together, it must be re-cut with a knife.
Check screw-on surfaces, sealing surfaces and bores on distributor housing and cover plate for wear and damage,
smooth with oilstone as necessary.
Check condition of threads; rechase threads if necessary.
Fit threaded inserts if necessary.
Check flanges, sleeves and elbows for wear, smooth with oilstone or emery cloth as necessary.
Check thread of studs and threaded pins for ease of movement.
Replace components as necessary.
Using the surface crack-testing method with red penetrant dye, check components for cracks; replace component if
cracks are found.
Replace O-rings.
Replace tab washers.
20080/1 E 98-12
Group 20
Subgroup 2570a
Page 7