I think i need the helicoil removal tool.
-Maybe/maybe not. What you're thinking is the "removal tool" is probably the installation tool. How did you install the coil itself? Did you use ordinary hand tools or something made to do the job? Did you break off the tang or is it still attached to the bottom of the coil?
I have a sharpe pick but it isnt giving me anything to grab.
Where on the coil are you attempting to pry? Top or bottom and why? From your photo the topmost end of the coil appears to be here;
-The tip of the arrow I've added is not a generalized location, it is pointed at the very end (as near as I can tell) that would need to be pried out from the threads you tapped for the coil. This should allow enough to grab with a pair of needle nosed pliers to unwind the coil out of the hole without damaging the newly tapped threads. Do NOT attempt this until you read the rest of my post (and others if you wish to) and make a decision on what to attempt next. You may/may not need to extract the coil currently installed.
-Yeah I understand why you did this freehand instead of removing the head for the drill press. Before any further attempts to correct this you can either:
1) Plod ahead with your own judgement and methods (not advisable from what I've seen)
2) Pull the head and take it to a qualified machine shop, shouldn't be more expensive than an hour of shop rate plus the gasket cost
3) Follow some advice from the collective here and attempt to work through this.
-If you decide to go with option #3 there's some info that's needed for all of us (including the OP) to digest before deciding on a course of action. The OP is using a type of shoulder bolt and that means the shoulder has to contact the surface of the head.
1) How long is the threaded portion of that shoulder bolt?
2) How long was the coil?
3) How much of a gap is there currently between the bottom of the shoulder and the surface of the head?
4) How did you
@vdotmatrix set the twist drill to stop at the desired depth?
-Further info needed about the coil installation:
1) What did you use to install the coil itself?
2) Is the tang at the bottom of the coil still there? If you did break the coil what did you use to do this?
-If the tang is still there it's possible that this is preventing the shoulder bolt from bottoming on the head. Breaking off the tang is standard procedure and easy to do with the correct installation tool, that's what it's for. You should be advised that it's possible to have problems even with the installation tool, it doesn't take much to deform the thread form of the coil or interrupt the thread pitch. Those can cause the shoulder bolt to not easily go in all the way. If the tang has been removed and the bolt doesn't bottom on the head it's likely that the above mentioned deformation has occurred. Is the coil still useful? Yes, the bolt threads can possibly push the heli coil threads back into the correct form/pitch but you'll need to exercise caution here. I would (if I were you) use a torque wrench and not exceed what the factory spec calls for. If that doesn't allow the bolt shoulder to bottom on the head then you'll need to pull the coil and insert a new coil. I've installed hundreds of them but still had to extract a coil to replace with a new one now and then, it's not a rare thing to happen. If you do need to replace the coil make darn sure the tapped hole is completely/thoroughly cleaned out and ZERO chips/crud remains. Use brake cleaner and compressed air to blow EVERYTHING out that doesn't belong there. Even a tiny piece of debris can/will force the heli coil to collapse inward and impede the shoulder bolt from bottoming. Yeah, it's that important.
-As
@david3921 has posted, if the tang is still attached it may be obstructing the shoulder bolt. If so, try removing the tang with the installation tool to avoid disrupting the thread pitch. This would be the simplest correction provided that the other conditions have been met. Most corrections are an IF>THEN sort of flow of action. If you decide to pull the existing coil to install a new one use your pick at the top end of the coil as I've depicted in the attached photo. Pry enough of the end into the center of the hole to grab with pliers and use and unwinding motion to extract it. I'll apologize for the exceedingly long post but this should have been a fairly simple repair. The fact that it hasn't, coupled with some of the other info posted indicates that the OP hasn't enough prior experience with this and needs a better understanding of what should be done at each step. Not trying to be overly critical or throw rocks but the results speak for themselves here. I would advise the OP to post the proposed course of action for the collective here to advise BEFORE attempting anything. The added downtime should mean little, it's the beginning of Winter and hope this isn't the primary transportation for the OP. If it is your DD then do say so.
-If
@vdotmatrix decides instead to pursue either of the first two options then I'll wish you good luck.
