other Help - How do I get these out?

[laundromatt]

Hi everyone - I purchased an exhaust manifold from a member on this forum, and need to get these two bolts (studs?) out.  Any advice?  

 

I'm familiar with using easy-outs, though I haven't tried them myself.  Would a repair shop be able to help with this?

[Buckeye]

I think you should you screw the studs in and take them out from the face of the flange instead of taking them out from back side of the flange. isn't that how the new should go get screwed in?

[PaulTWinterton]

You or a shop should be able to remove those without too much grief.

 

Drill most of the material out and use an easy-out to remove the rest.  Start with a punch to mark the center.  Then use a smallish drill bit and finish with a larger drill bit, but don't go TOO big and damage the manifold itself.  A drill press is ideal, but I'm sure you could use a hand-held drill as well.

[Kidasters]

Spray with penetrating oil.  Drill them from that side as well (the inside).  They might also just "push" out while you are drilling.

[TobyB]

Heat them and smack them a few times, too.  Just to try to loosen them up...

 

I have had a hard time getting these little boogers out- they're much harder than the casting.

 

+1 for carefully drilling the center, then using bigger and bigger bits.  Reverse bits are neat for this,

but a regular bit might just spin it right on through.

 

Good luck!

 

t

[evil02]

If your nervous, a machine shop would pop those out pretty cheap, should be way less than $50..

 

 

[Healey3000]

You'll also have to cut off the head side studs because those nuts won't come off.  A Dremel with a cutoff wheel works great for that.

[tahoedon]

Heat, penetrating oil, tapping. Repeat several times. Be patient. I have had things like this soaking for weeks and still had no luck. Some people recommend a mixture of atf and acetone as a penetrant. When using the ez out be very careful with how much torque you are putting on it. If it breaks in the hole things get much worse (how do I know?). Very often I end up drilling the stud out and retapping the hole.