TM 5-2420-230-24-2
Section 1 - Cylinder Block - Group 1
Cylinder Block - Cleaning (1-03)
B Series Shop Manual
Page 1-13
Use clean solvent and a brush to clean the piston cooling
nozzle bores.
Use clean solvent and a brush to clean the main oil rifle
to overhead oil drilling.
Use clean solvent and a brush to clean the oil cooler oil
passages.
Gasket Scraper
Thoroughly clean all gasket sealing surfaces.
L-216