INSPECTION AND REPAIR (cont) - TM-5-1940-277-34

CYLINDER HEAD ASSEMBLY INSPECTION AND REPAIR INSTRUCTIONS (Continued) - TM-5-1940-277-34_305

CYLINDER HEAD ASSEMBLY INSPECTION AND REPAIR INSTRUCTIONS (Continued) - TM-5-1940-277-34_307

TM-5-1940-277-34 Boat Bridge Erection Twin Jet Aluminum Hull Model USCSBMK1 (1940-01-105-5728) Manual
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TM 5-1940-277-34 CYLINDER HEAD ASSEMBLY INSPECTION AND REPAIR INSTRUCTIONS (Continued) LOCATION ITEM ACTION REMARKS c. Regrind face Use lathe. if not unduly pitted or distorted. Minimum edge thickness 0.008 in. (0.79 mm). d. Replace valve guide if valve stem scuffed or scratched. 4. Valve spring (2) Valve spring (2) a. Inspect for Distortion, Broken ends. b. Test for Use spring resiliency. tester. Limits: Valve open - 163 lb. (73.94 kg) Valve closed - 65 lb. (29.48 kg). c. Replace spring if defect noted or not within resiliency. 5. Cylinder head Cylinder head a. Inspect for Use accurate (1) (1) warpage. straightedge and feeler gage. b. Inspect for Seal cooling cracks. passages, pres- surize and place head in heated water. 2-285

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