coolant leaking from exahst manifold bolt

1988 CHEVROLET SUBURBAN
V8 • 4WD • AUTOMATIC
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JPRENTICE31
  • MEMBER
  • 1 POST
i was drilling out a broken exhaust manifold bolt and drilled to far. now there is coolant leaking from bolt hole. how do i fix this problem? this is my only vehicle, i need to fix asap.
Jul 21, 2011 at 5:39 PM
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FACTORYJACK
  • ✓Experienced Mechanic
  • 4,159 POSTS
What is the condition of the hole itself? Are there threads remaining, or did those get drilled out?
Jul 21, 2011 at 7:14 PM
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DOCFIXIT
  • ✓Experienced Mechanic
  • 18,828 POSTS
Get a Heli-Coil kit for exhaust bolt size install per instructions. then coat bolt with #2 Permatex to seal water jacket
Jul 22, 2011 at 7:10 AM
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