Removing broken bolts
Submitted by tommytomato on Fri, 2009-02-27 16:08
I had removed the old steering cable last week and one of the bolts that hold the steering backet at the rear hull has broken ( well rusted ) how do you remove bolt it with out doing any damage to the rear section of the hull, can you drill it out ? any ideas please.
I got my cable to today a full kit so now I would like to fit it and get out and catch me some Squid before all you blokes catch them all, seen some good reports so far.
TT ( karl )
kane
Posts: 1752
Date Joined: 07/12/08
Theres several ways.....
Always worth a try is to get a small chisel and tap the remaining thread to try and unscrew now the tension is off the bolt due to it being broken they quite often come right out....having said that it looks quite rusty so it probably wont work, so
Get an easy out kit, drill a small hole in the centre of the remaining bolt, hammer or screw in the easy out depending what type you buy and unscrew.
Another option is a left hand drill bit, quite often the heat from drilling is enough to losen the thread and the friction from a left hand drill bit will screw it out.
If this fails you can get a drill the same size as the original, redrill the whole and re tap the thread.
Goooooone Fishin!
Gooooone Fishin!
carnarvonite
Posts: 8673
Date Joined: 24/07/07
Where abouts is the bolt
Where abouts is the bolt situated on the hull and does it go all the way through.
Some times it is easier to drill the bolt out and go all the way through and replace it with a 316 stainless bolt
PilbaraBrad
Posts: 3628
Date Joined: 16/05/07
Broken Bolts
mate you have a couple of options
if the bolt is ferous and your a good welder, you can grab a small diamater piece of pipe put it in the hole and weld on the inside of the pipe (to the broken stud) you can then use a set of stillsons and plenty of W40 to work it out
Alternativly you can drill out the center of the bole and get yourself a set of "easy outs" which are a specific tool used for extracting broken bolts, again use plenty of lube
Actually after looking at that, what is the female thread tapped into (glass or a stainless backing plate), I would just drill it out and then re tap it, if you have to go oversize you can always tap it and put in a heli coil to match the origional thread size. A helicoil is a female is basically a "reducer" for threads. It screws into a hole but has a hollow thread on the inside diameter, perfect for this type of thing
tommytomato
Posts: 416
Date Joined: 25/07/05
Thanks Guys for all the
Thanks Guys for all the tips
I've drilled the hole in the bolt, but now I have to buy some ( easy outs ) because I don't have any, got just about every other tool, You never stop buying Tools do ya
I'll have a look at bunnings in the morning
TT ( karl )
tommytomato
Posts: 416
Date Joined: 25/07/05
The bolts are out
The bolts are out now,
Thanks Mark
TT ( karl )
NOHA
Posts: 914
Date Joined: 24/06/07
No worries Karl.. Sometimes
No worries Karl.. Sometimes all it takes is a bigger hammer..
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Rick
Posts: 1115
Date Joined: 22/12/06
Squid
Should be able to get that steering sorted now TT and chase those squid
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tommytomato
Posts: 416
Date Joined: 25/07/05
Cant get the stainless
Cant get the stainless bolts, so whats better Zinc or Glav
TT ( karl )
PilbaraBrad
Posts: 3628
Date Joined: 16/05/07
TT
Get staino bolts mate, 316 is a good marine grade
dont use zinc or gal, just asking for trouble. Somone is going to sell them, bunnings will sell staino bolts mate
trust me, you need staino bolts
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