TM 5-3805-262-203-7. COOLING SYSTEM TROUBLESHOOTING (CONT)MALFUNCTIONTEST OR INSPECTIONCORRECTIVE ACTION1. ENGINE OVERHEATS (Cont).Step 13. Allow engine to cool and remove radiator cap.Rinse radiator cap with clear water and install on cap adapter andpressure tester as shown .NOTEI t m a y b e n e c e s s a r ys t a l l r a d i a t o r c a ptimes to ensure tightt o r e i n -s e v e r a ls e a l.Operate pressure testerpump and watch meterr e a d i n g a t i t s h i g h e stpoint. Cap release pres-sure should be 6-1/2 to7-1/2 pounds, and shouldremain steady for at least30 seconds.a. If radiator cap pressure is 6-1/2 to 7-1/2 pounds, and remainssteady for at least 30 seconds before dropping, go to step 14below.b. If radiator cap pressure is not 6-1/2 to 7-1/2 pounds, or ifp r e s s u r e d r o p s r a p i d l y , r e p l a c e r a d i a t o r c a p.Step 14. Remove radiator cap.Remove engine left and rightside panels if not alreadyremoved (page 9-14).Remove alternator drive belts(page 5-4).Drain coolant from radiator tojust below upper radiator hoseport (page 4-69).Disconnect upper radiator hosefrom thermostat housing (page4-74). Remove thermostat housing andthermostats (page 4-89).3-57
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