What are the timing marks

1994 CHEVROLET LUMINA
99,054 MILES • 3.1L • V6 • FWD • AUTOMATIC
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STEVENH1983
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Bought the car the man thought the engine was locked up, but the timing chain had broken. What are the timing marks and will this motor bend a value if chain breaks?
Sep 14, 2016 at 6:07 AM
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HMAC300
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no, it wont bend a valve. see picture for timing marks.
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Sep 14, 2016 at 7:08 AM