I have an HIO360-B1A with military log books. It is missing several of the case fasteners, mostly the 1/4'' ones. the oil sump bolts have a grade 5 symbol on the heads and some of thecase and accessory housing have no gradeor other markings. The parts manual calls out part numbered bolts and nuts of various legnths, but is there any acceptable substitutions?
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Lycoming engine case bolts
- Thread starter dapland
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wassbiplane
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