pulling bandaids !

left twist drill bit?

Tig a bolt to it, and once removed use a timesert if necessary.

you need a friend witha tig...youl never drill it, maybe could die grind with a carbide, but couldbe messy real quick...

If you want to remove the bolt with minimum damage to the case, I think I'd find a machine shop with EDM (electrical discharge machining) machine.

Is the hole tapped into the cam chest or is it blind. If it's tapped all the way through, you might be able to get it out "fairly" easily.

If I were gonna try it myself, I'd use the lifter block for a jig. Bolt it on with the three good bolts, use a piece of tubing to sleeve the bad hole in the lifter block, center the drill bit and slowly drill the center of the broken bolt out until what remains in the cases is relatively thin. Since the hole is already off center and looks to be in the threads, once you get the center drilled out you should be able to crush the remains of the bolt inward and remove it.

thank you for the responses ! Id love to be able to take it to a machine shop and have them do it . not in the budget right now . Larry , the threads do not go all the way through . Ill keep ya posted on progress !

1) If you have not done this before you will be way ahead to wait till you can afford a pro fix. It looks like it already has had enough amateur work. This can still be saved. But not likely by a amateur. The more you f it up the more it will cost in the end. 2) My .02 to remove it would be a fabbed 1/4x1x1 washer with a hole 1/2 the size of the bolt beveled out from that size then welded to the broken bolt and easyout with 3/32 Cronatron Eagle 3330. If you are a excellent welder that is the way I would go. If not #1 will be your best bet.

joe49 said:

1) If you have not done this before you will be way ahead to wait till you can afford a pro fix. It looks like it already has had enough amateur work. This can still be saved. But not likely by a amateur. The more you f it up the more it will cost in the end.

Click to expand...

I agree 100%

Ill have to agree with ya joe . I have done this job on cars before not on bikes . Thanks for the ideas .

Just remember there is always time to do over if you don't do it right the first time. But it may cost alot more the next time around. Just my $0.02 worth.

Larry T said:

Find a machine shop with EDM (electrical discharge machining) machine.
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Is the hole tapped into the cam chest or is it blind. If it's tapped all the way through, you might be able to get it out "fairly" easily.
You can drill though to the cam chest.

If I were gonna try it myself, I'd use the lifter block for a jig. Bolt it on with the three good bolts, use a piece of tubing to sleeve the bad hole in the lifter block, center the drill bit and slowly drill the center of the broken bolt out until what remains in the cases is relatively thin. Since the hole is already off center and looks to be in the threads, once you get the center drilled out you should be able to crush the remains of the bolt inward and remove it.

Click to expand...

^^^ If you can find a lifter block from a 77 and up would make this go much easier, they don't use the taper screws...

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