why do the rocker arm bolts keep coming loose?

2000 PONTIAC BONNEVILLE
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ARMANDOCAMPA
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  • 1 POST
2000 pontiac bonneville that i changed the cylinder heads on and now the rocker arm bolts keep coming loose why is that? i have already tried lock tight
Aug 21, 2012 at 4:18 PM
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HMAC300
  • ✓Experienced Mechanic
  • 48,601 POSTS
the threads may be worn out. and the spring pressure from the valves make them do that. they may have come out hard ans trippedthe aluminum away
Aug 21, 2012 at 4:52 PM
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