Has anybody had this problem ? Broken exhuast manifold bolts ? One on each head. I am hoping to drill and ez-out and or retap the holes with out removing heads. motor is out of the car to fix oil leaks and new headers and new clutch for starters lol

 

Should not be a problem to fix with the motor out of the car and heads on; You have the right idea and you might not have to retap the holes.

 

I had to deal with the same issue when I was putting the "new" engine in my car. Used an ez-out and it was pretty much an easy job. never had to retap the holes or anything.

 

ok thanks for the info. I got to get them out. My headers coming tomorrow LOL

 

Well one of the two broken exhaust bolt came out with not problem
But the other one is not being kind to me the bolt did not brake off flush
I used my carbide with die gringer to try and make it flush so I could get starit and centered I can't get any drill bits to drill into broken bolt now
I really don't want to remove head any help with ideas is welcome

 

Is there any of it sticking out of the head at all?

 

not sure photo comes out

 

u can email it to me at gatorheads3@yahoo.com

 

ok photo's sent and posted in my album the z28 project

 

That is in a bad spot ....... if the bits you have will not drill it, you may have to get a better bit. I don't see another way of getting it out other than drilling it and using an easy out at this point. I would also douse it with PB Blaster so when you do get it drill it will come right out.

 

Have you tried a masonry bit?

 

i have tried new and sharpen drill bits that is have on hand i have been using the blaster

 

no did not think of tring the masonry drill bits didnt think they would be any better but what do i have to loss but a couple of bucks for 1

 

If you have access to a welder, and enough of the stud is sticking out, you can put a nut on the stud and weld the stud to the inside of the nut. Then just remove the stud with a wrench.

 

I seen the pics, it is broke off into the head.


OP you may have to buy a hardened bit, carbide or the lieks to get that out.