TM-9-2815-210-34-2-2 LDS-465-1/LDS-465-2 Multifuel Engine Maintenance Manual Part 2
Page 270 of 968
TM 9-2815-210-34-2-2 FRAME 2 1. 2. 3. 4. 5. 6. 7. NOTE Do this frame for all six valve rotors (1) in cylinder head assembly. Draw a chalk mark across inner section (2) and outer section (3) of valve rotor (1) as shown. Put rotor (1) in a container of clean engine oil. Put short steel sleeve (4) on platform of spring tester (5) as shown. Take rotor (1) out of container of oil. Let excess oil drip off. Put rotor (1) on sleeve (4) with valve spring seat side down as shown. Put 3/4-inch hardened steel ball (6) on top of rotor (1) as shown. Work spring tester (5) to put a load of 260 pounds on ball (6) on top of valve rotor (1). Then let up load to 110 pounds. Do step 6 again 25 to 30 times. Check that marks on inner section (2) and outer section (3) of valve rotor (1) move apart as shown. If marks do not move apart, throw away valve rotor and get a new one. END OF TASK 4-251