Where to go to get a rounded off bolt removed?
Where to go to get a rounded off bolt removed?
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Discussion

Luke-36

Original Poster:

69 posts

134 months

Tuesday 26th January 2021
quotequote all
I've managed to round off (destroy) a screw in the roof of my Elise, and I'm trying to find someone who can have a go at removing it. New roofs are currently £900+VAT so would like to avoid that at all costs smile

The bolt is fairly small - pic attached next to a tictac to give you an idea but its about 3mm wide. I'm under no illusion this could be a total ball ache but i've no idea where to take the thing for help. I've called a few local garages who won't go near it and still waiting to hear back from a few others.

Any idea what/who/where i can take the roof for help? I'm in Aylesbury.

Thanks
Luke

illmonkey

19,827 posts

228 months

Tuesday 26th January 2021
quotequote all
what is it? Bolt? Screw?

If it's a bolt, find a smaller socket, hammer it on and remove or a bolt extractor

underwhelmist

2,051 posts

164 months

Tuesday 26th January 2021
quotequote all
I don't think you uploaded a picture, that would help.

Drill it and use an easy-out, cut a slot in it with a Dremel and use a flat screwdriver, vice grips (mole grips)?

Boosted LS1

21,200 posts

290 months

Tuesday 26th January 2021
quotequote all
3mm wide? A tiny file should sort that.

Luke-36

Original Poster:

69 posts

134 months

Tuesday 26th January 2021
quotequote all
Sorry all my bad - here's the pics!




steveo3002

11,219 posts

204 months

Tuesday 26th January 2021
quotequote all
is it screwed into metal or plastic/fibre glass?

if its into metal a blob of weld would have it out ...2 mins work for someone with a welder

Luke-36

Original Poster:

69 posts

134 months

Tuesday 26th January 2021
quotequote all
steveo3002 said:
is it screwed into metal or plastic/fibre glass?

if its into metal a blob of weld would have it out ...2 mins work for someone with a welder
its into plastic unfortunately.

illmonkey

19,827 posts

228 months

Tuesday 26th January 2021
quotequote all
I'd be ttting a screwdriver into the head and undoing it. It's not going to be torqued up, so should be easy enough

steveo3002

11,219 posts

204 months

Tuesday 26th January 2021
quotequote all

archie456

521 posts

252 months

Tuesday 26th January 2021
quotequote all
Gently hammer a torx bit into it, it should come out easily.

Drive it fix it repeat

1,046 posts

81 months

Tuesday 26th January 2021
quotequote all
Apply a bit of reverse engineering, remove the car from the screw...

paintman

7,860 posts

220 months

Tuesday 26th January 2021
quotequote all
Your pic of the damaged fastener is blurred & isn't any use .

Is the fastener exactly as pictured next to the tictac?

Caddyshack

15,083 posts

236 months

Tuesday 26th January 2021
quotequote all
Where are you based?if local ish to Guildford I will get it out for you.

Just needs a tiny drill in the middle and get slowly bigger and then an easy out wound in. Normally they loosen off once drilled.

Some modern glues like epoxy ar so strong you could glue a good bolt to that one and just undo it.

Caddyshack

15,083 posts

236 months

Tuesday 26th January 2021
quotequote all
Caddyshack said:
Where are you based?if local ish to Guildford I will get it out for you. Edit to add: Sorry, missed the Aylesbury

Just needs a tiny drill in the middle and get slowly bigger and then an easy out wound in. Normally they loosen off once drilled.

Some modern glues like epoxy ar so strong you could glue a good bolt to that one and just undo it.

RobXjcoupe

3,390 posts

121 months

Tuesday 26th January 2021
quotequote all
Centre dot the middle of the screw and drill the head off leaving the stud, get a set of mole grips on the stud and unscrew. Once removed drill the plastic and fit a suitable threaded metal insert with a new 3mm thread within

Tin Hat

1,429 posts

239 months

Tuesday 26th January 2021
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dudleybloke

20,553 posts

216 months

Tuesday 26th January 2021
quotequote all
Tap it loose with a hammer and centrepunch or small chisel.
Once you've got it moving you can use pliers or fingers if lucky.

underwhelmist

2,051 posts

164 months

Tuesday 26th January 2021
quotequote all
archie456 said:
Gently hammer a torx bit into it, it should come out easily.
This gets my vote now we know it's a hex socket head.

edit: In my experience on old Japanese bikes, small hex socket-head (Allen?) bolts like this are a pain, they always get stuck and the head rounds out. Suzuki, I'm looking at you. When you get it out, smear the threads of its replacement with a bit of copper grease, should help to prevent it getting stuck again.

Edited by underwhelmist on Tuesday 26th January 23:05

underwhelmist

2,051 posts

164 months

Tuesday 26th January 2021
quotequote all
Drive it fix it repeat said:
Apply a bit of reverse engineering, remove the car from the screw...
Find a way to hold the screw still, then gently rotate the universe clockwise smile

Thebaggers

387 posts

163 months

Tuesday 26th January 2021
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Plan a. Tie some dental floss around it attach the other end to a door handle in the house. When you think the car isnt expecting it, in the slam the door.

Plan b. As it is in plastic, treat yourself to a new small good quality metal drill bit and then go for one of the left hand extractors the posters above have linked, or enlarge the hold slightly and tap a torq or star 12 point bit in there. Always start the drilling small and enlarge gradually until you can get purchase.

I wouldn't weld anything to it as it's in plastic that will get melty.