classic car forum header
Classic cars forum & vehicle restoration.
 FAQFAQ   SearchSearch   MemberlistMemberlist   UsergroupsUsergroups 
 ProfileProfile   Log in to check your private messagesLog in to check your private messages   Log inLog in 
How To Register     Posting Photographs     Privacy Policy     F/book facebook.com/oldclassiccar

Removing a sheared bolt.
Post new topic   Reply to topic    Classic cars forum & vehicle restoration. Forum Index -> General Restoration Advice
Author Message
Peter_L



Joined: 10 Apr 2008
Posts: 2634
Location: New Brunswick. Canada.

PostPosted: Sun Mar 07, 2021 3:44 pm    Post subject: Removing a sheared bolt. Reply with quote

I like the DIY "hole through a bolt idea" 4:18>

https://www.youtube.com/watch?v=dJfkCj3FWBs&t=199s
Back to top
View user's profile Send private message Send e-mail Visit poster's website
peter scott



Joined: 18 Dec 2007
Posts: 6611
Location: Edinburgh

PostPosted: Sun Mar 07, 2021 11:12 pm    Post subject: Reply with quote

Very sensible. Thanks for posting.

Peter
_________________
http://www.nostalgiatech.co.uk
1939 SS Jaguar 2 litre saloon
Back to top
View user's profile Send private message Visit poster's website
Peter_L



Joined: 10 Apr 2008
Posts: 2634
Location: New Brunswick. Canada.

PostPosted: Sun Mar 07, 2021 11:51 pm    Post subject: Reply with quote

peter scott wrote:
Very sensible. Thanks for posting.
Peter


So simple, I can't believe it took me half a century to learn this. Especially being able to get a drill bit to start on the top of a rough, sheared bolt. I wouldn't mind having to start a 1/8th and work upward.
Back to top
View user's profile Send private message Send e-mail Visit poster's website
alastairq



Joined: 14 Oct 2016
Posts: 1565
Location: East Yorkshire

PostPosted: Mon Mar 08, 2021 11:26 am    Post subject: Reply with quote

My experience of sheared bolts has been, they have sheared close enough to the top surface that there is very little of the bored thread showing. Yet, far enough down the hole to make tapping out hazardous ....[to the threads]

The only thing I might be wary of [considering my ability to make any drill wobble]....is the gradual enlargement of the bored hole in the cap bolt, as the drill turns inside?
_________________
Dellow Mk2, 1951 built, reg 1952.
Ford Mustang coupe, 1967, 6 cylinder auto.
Fiat 126 BIS
Cannon special [1996 registered. Built in 1950's]
----------------------------------------------
Ford Pop chassis, Ashley 1172 bodyshell, in pieces.
Back to top
View user's profile Send private message
Bitumen Boy



Joined: 26 Jan 2012
Posts: 1507
Location: Above the snow line in old Monmouthshire

PostPosted: Mon Mar 08, 2021 3:23 pm    Post subject: Reply with quote

alastairq wrote:
My experience of sheared bolts has been, they have sheared close enough to the top surface that there is very little of the bored thread showing. Yet, far enough down the hole to make tapping out hazardous ....[to the threads]

The only thing I might be wary of [considering my ability to make any drill wobble]....is the gradual enlargement of the bored hole in the cap bolt, as the drill turns inside?


I reckon you would have to consider the bored out bolt as a simple, disposable jig. Of course if you had a lathe to make your own as required that shouldn't really be an issue.
Back to top
View user's profile Send private message
Display posts from previous:   
Post new topic   Reply to topic    Classic cars forum & vehicle restoration. Forum Index -> General Restoration Advice All times are GMT + 1 Hour
Page 1 of 1

 
Jump to:  
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum
Forum T&C


php BB powered © php BB Grp.