Mine was on an EVO.

Although I had plenty of fun developing the UDP for the Ralliart!

 

If all else fails, is have to re tap it? What size bolt did you replace it with?

 

same size...i think you misunderstood the procedure...by tapping, i meant chasing the threads...

 

Keith, he was able to save the original threads, and cleaned them up by chasing them with the tap.

 

Damn what the hell were you using to tighten them a breaker bar or impact gun.. Okay okay enough bashing this must suck I'm sure you are driving it on 3 bolts though right? I would cause i really need my car but of course I would have fixed it the day of.. If you can find a reverse drill bit your golden just punch a guide mark in the middle and it turns left and grabs it and turns the extractors and easy outs you have to put a lot of pressure for it to grab.. I drilled a bolt ONCE and chased it but it didn't turn out the way I wanted it to but it still worked

 

Yeah, I used an Impact gone that had like... 600 ft lb of torque or something like that. Well, that's what my friend told me it had.

 

This ^^ more often than not. I've fixed these things on cars and motorcycles.

Lots of heating and cooling cycles tend to make threaded joints fuse together (unless there was anti-seize compound on them). Sometimes an easy-out just acts like the bolt shank that broke off - you can't torque it enough to break the threads loose.

So here are options based on my experience, one of them will work:

1. what Crans said above

2. heat the pulley area with a torch then screw in the easy-out and try to extract broken piece

3. if the broken bolt has hardened and is difficult to drill into with a high speed bit, drill the broken piece out with a stellite bit and re-tap. Stellite is a material that retains its hardness at the high temperatures that soften/weaken bolt steel. The stellite bit's tip looks crude and dull like a concrete drill, but it is supposed to because that way it creates friction that heats the broken bolt until it's soft enough for the stellite to drill thru easily. I use this technique for exhaust header bolts that snap off flush with the head.

4. Into the broken bolt, drill a smaller hole than the original and re-tap for a smaller diameter bolt. This is much better than nothing. Use a grade 8 bolt and you'll be fine. Should be no balance issue because, overall, there is still the same amount of material there.

p.s. MitsuJoe was a pioneer for RA mods way back when, nice to see him looking in.

 

........ Are you messing around? Why would you use something that powerful on such small bolts?

 

Nope, Keith is legit.

 

lol. Yeah, I'm serious. Reason was because I didn't have any wrench or hand sockets and only had the gun and I had only 15 minutes to finish it at 2 in the morning and I wanted to do it quick. Didn't know it was going to snap.

 

Lmao well we learn from our mistakes right..

 

That's exactly it, when I hear about someone twisting wrenches on their cars, it makes me happy. Regardless of the outcome.

 

lol @ 600 ft-lb

Boeing C-17 Globemaster III....wheel nut torque: 250 ft-lb

 

yeh, and probably one cotter pin holding it all in place.

 

lol. I'm not sure how strong that impact gun was. I was just going by what my friend said. I don't even know if they make impact guns that strong. I'm not so tool savvy. It was one of those portable battery powered snap-on ones.