I was taking my top end apart today and when i was loosening the 6 nuts that hold the head on one of the studs broke. I have the vito's 240BBK. Will a stud for a stock cylinder fit in the BB cylinder? also how do i get the old broken stud out?
broken head stud
- Thread starter blasterboy32
- Start date
Ouch. I can't say for sure if you can use a stock stud with a Vito's kit (I think it will work), but I can say that you'll have to be VERY careful when removing the old broken stud.
First off, where did the stud break? Did it snap off flush with the top of the cylinder, or is there enough sticking out to grab with a pair of vise-grips?
If there's a piece to grab ahold of, you'll need heat. That stud is held in place with threadlocker and it will be best to get the aluminum around the stud hot with a propane or MAPP Gas torch prior to attempting to remove the stud. Clamp a pair of vise-grips to the stud, carefully heat the area around it with the torch, and work the vise-grips back and forth to attempt to break the stud free. If you're patient and work slowly, you'll get it out after awhile.
If, however, the stud is snapped off flush with the jug, Id take the jug off the engine and use a drill press to drill out the broken half. There are other ways, but a drill press is accurate and won't go in crooked as long as you secure the cylinder properly. After you've got the stud drilled out to almost the diameter of the hole in the cylinder, you can either drill it out all the way and use a Helicoil to repair the threads, or you can unscrew the last nub with heat and an Easy-Out. Personally, I hate Easy-Outs. They are brittle and will snap easily if over-torqued.
Good luck with the fix! If you're not experienced with removing broken bolts/studs, you might be better off taking the jug to a machine shop to have the work done. Its worth paying somebody a little extra when compared to possibly damaging your cylinder beyond repair if you screw it up by trying it yourself. No offense.
First off, where did the stud break? Did it snap off flush with the top of the cylinder, or is there enough sticking out to grab with a pair of vise-grips?
If there's a piece to grab ahold of, you'll need heat. That stud is held in place with threadlocker and it will be best to get the aluminum around the stud hot with a propane or MAPP Gas torch prior to attempting to remove the stud. Clamp a pair of vise-grips to the stud, carefully heat the area around it with the torch, and work the vise-grips back and forth to attempt to break the stud free. If you're patient and work slowly, you'll get it out after awhile.
If, however, the stud is snapped off flush with the jug, Id take the jug off the engine and use a drill press to drill out the broken half. There are other ways, but a drill press is accurate and won't go in crooked as long as you secure the cylinder properly. After you've got the stud drilled out to almost the diameter of the hole in the cylinder, you can either drill it out all the way and use a Helicoil to repair the threads, or you can unscrew the last nub with heat and an Easy-Out. Personally, I hate Easy-Outs. They are brittle and will snap easily if over-torqued.
Good luck with the fix! If you're not experienced with removing broken bolts/studs, you might be better off taking the jug to a machine shop to have the work done. Its worth paying somebody a little extra when compared to possibly damaging your cylinder beyond repair if you screw it up by trying it yourself. No offense.
thanks for the help. i guess ill call my local machine shop tomorrow and see how much it will be to have it removed
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