It looks like there is a hole that the bolt would fit into.
Oct 26, 2011 at 2:41 AM
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MHPAUTOS
✓Experienced Mechanic
31,937 POSTS
Sounds like one of the valve body bolts, there will be others that look the same holding the valve body in place, just carefully try the bolt in the hole if it screws in by hand do it up but do not force it, let me know how it goes.