Quantcast FIGURE   3-65.   Hot   Plug   Depression

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ARMY TM 9-2815-254-24 AIR FORCE TO 38G1-94-2 FIGURE   3-65.   Hot   Plug   Depression c. Inspect combustion chamber as follows: (1)   Remove  carbon  adhering  to  inside  of  combustion  chamber.  Use  care  not  to  damage  hot  plug  fitting  posi- tions. (2)   Inspect combustion chamber, hot plug hole, and hot plug machined faces for cracks and other damage. (3)   lf cracks or other damage are found, cylinder heed must be replaced. Be absolutely certain there are no scratches or protrusions on  combus- tion chamber surfaces which will be in contact with hot plug after it is installed. These flaws will prevent hot plug from seating correctly. d. Inspect hot plugs for excessive wear and other damage. Replace hot plugs if any of these conditions are found. e. Check valve stem and valve guide clearance as follows. (1)   With valve and valve guide in cylinder head, set a dial indicator at zero on valve stem, refer to FIGURE 3-66. (2)   Move valve heed from side to side and reed dial indicator. Note highest reading. 3-116


 


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