Rounded bolts

strangeman · Posted: Sun Jun 03, 2007 10:19 am Post subject: Rounded bolts

OK, here goes. What do you guys use for a last resort when you have a bolt that is frozen and the head is rounded?

sr71cbx · Posted: Sun Jun 03, 2007 12:26 pm Post subject:

Steve Adams · Posted: Sun Jun 03, 2007 8:20 pm Post subject:

If this is a screw that has frozen and you have rounded out the inside, I have drilled them with a small drill bit and used lots of PB blaster and an easy-out. If this is a bolt, I have soaked bolt with large quantities of PB Blaster, applied heat, screamed loudly and used a socket that has that is designed for removing stripped out bolts if there is enough head left for it to grip. These come in different sizes and are commonly available at most well stocked auto parts stores.

Good luck,

Steve

Steve Searles · Posted: Mon Jun 04, 2007 5:47 am Post subject: Frozen bolts

Many methods. In order: My small vise grips sometimes works, of course the tried and true chisel on the edge of the head and tap with hammer in direction of turn. All of this while soaked in PB BLASTER. That stuff is awesome. I just has a case bolt in my CBX want to stay due to galvanic reaction. Damn, had to drill it out , pick it with a chisel till the remains came out and retap. Bummer but got it.

Chad · Posted: Tue May 13, 2008 8:29 am Post subject:

I am dealing with a lot of bad fasteners on my new CB360. I had success with the Craftsman Bolt Out kit. I think it was $20 at Sears. Basically, I hammered the special socket on the bolt and then hammered on the socket wrench till it freed up. Took some patience and sweat.

http://www.flickr.com/photos/slidell4life/2483108981/sizes/m/

jimw · Posted: Wed Jun 25, 2008 1:21 pm Post subject:

The Craftsman Bolt Out kit sounds like an interesting item.

Otherwise, start with hard hits of a hammer on the head to try to crack whatever is holding it. Then you can use a file to try to improve the flats. Use 6 point sockets rather than 12. Try to turn it both ways, not just CCW. When the head finally just breaks off, bring out the drill.... When a frozen nut is the problem instead of a bolt, a nut splitter takes care of that fast. Ouch.

bB2NER · Posted: Fri Nov 05, 2010 3:10 am Post subject:

I just dealt with this issue with my CB400T oil filter bolt. I had to grind a slot in the head with the cutting wheel and die grinder. The I took a 1/2 inch drive slotted socket (like a giant flat head screw driver) on a half inch ratchet. Placed the bike on the center stand. Used a floor jack with a piece of wood in the lift cradle, placed the tool into the slot and brought the jack up to hold it in place. Managed to get it to break loose after jacking it up some more using the weight of the bike to hold the tool in place. I could have also used the impact tool with a hammer if this method failed.

skungheeney · Posted: Fri Jan 07, 2011 8:18 am Post subject:

Always remember, steel bolts and srews will weld themselves to aluminium cases, best to undo bolts and screws and pack with lots of grease.

H2Lou · Posted: Fri Jan 07, 2011 8:28 am Post subject:

kingzero · Posted: Fri Jan 07, 2011 9:41 am Post subject: Stripped bolts

If the bolt in question is one of many holding two components together then remove all non stuck bolts from the assembly and grind the head off the stripped bolt. Separate the pieces and work the stud out of the case using lots of PB Blaster and patience.
Bob

challenger · Posted: Sat Jan 08, 2011 7:05 pm Post subject:

Three direct applications of a BFH to the offending bolt followed by a firm grasp with small vise-grips and unscrew the stubborn bolt. Then replace ALL bolts/screws with either HEX head or ALLEN head screws.

Works for me EVERY time with no problem.

Petercheez13 · Posted: Wed Mar 02, 2011 10:18 am Post subject:

you can find extactor kits at most hardware stores they come in dif sizes and u basically drill it and then pull it out ive have to do it to case bolts on a few old bikes, make sure u know what size to replace it with before u destroy it though. i got my kit at ACE for 15 bucks and it beats chizeling and scratching everything with pliers or what have you