So today I noticed my exhaust blowing, could tell by the sound of bike. so I had a look and seen I snapped a bolt on my way home so set about cylinder head removal this evening, to drill the snapped bolt out! Went to drill it but my 12 tear old black and decker drill is gutless! and my drill bits are blunt! Will do it on friday at college where I can use the windy gun and get a wire brush drill thing onto the cyl head and clean the rust up
try using a stud extractor, use a liberal coat of penetrating oil first, leaving it to try and soak in...
give it to the engineering supervisor...he'll use it as a teeching subject to show students how to think outside the box and problem solve the situation
or overtighten a 20nm stud there usually soft enough to strike with a chisle to make a flat, throw in some wd and a screwdriver should pull it out, unless its wound into a blank hole there should be no pressure on it as the exhaust is removed.. if its rusted in then yes drilling a small hole/pin punching then using a DECENT stud extractor is the norm... i prefer to clamp a stud on, drill a smaller hole in the centre almost completly drilling it, then using a screwdriver to remove the hollow thread.. but yes take it to college, they will sort you out and a few others wioll learn, there also liable to deal with it if its a REAL pain in the ass (not legally, but they will do it whatever) shame its not ali as you can just blast a blob of weld on the stud and grab it with plires as it wont stick to the ali.. but cast melts QUICK when a welders around so a big no no
It seemed someone had copper greased the stud when putting it in so that helped, I used a center pop to make my mark used a little drill bit for a pilot hole and got the easy out in! came out a treat 5 minute job. I've finished my work shop practises so was just on my own!
looking for something to de coke my exhaust out let thing quite a bad build up couldn't scrape it out is there a drill attachment i can get? cheers?
I put my exhausts over a bonfire, bin style, let it burn then when its totally cooled down, usually next day just tip exhaust and it all comes out, only ever done this on a standard exhaust, doesn't mess exhaust up either, dunno if that helps :/
I'm going to bother with exhaust as the baffles and cat inside are knackered and rattling about inside exhaust so that wont help! but I'm gonna see if theres a small wire brush attachment at halfords for the outlet thing on head as there is a couple mil of buildup! cheers
will give that a blast for exhaust what about in the actual cylinder? like the bit that comes from barrel to exhaust! managed to scrape most of if the build up out with a scribe but not much of it!
