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mushroomed valve stems
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  1. 99-03 7.3 Motor Problems
    2000 with 210,000. Bought with broken #5 piston, appears to have had a bad injector that bled into cylinder and cracked the piston. Cylinder continued to fire as evidenced by the hole in piston and underside of the piston both exhibiting some aluminum melting. Bored .020, new Ford Master...
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