Mazda Rotary Club

Cars by Model Type => 3rd generation RX-7's => Topic started by: jackaleks on July 05, 2009, 01:05:19 PM

Title: the world\'s most rounded bolt...
Post by: jackaleks on July 05, 2009, 01:05:19 PM
(http://img5.imageshack.us/img5/6232/cimg0626p.jpg)


yes, that did used to be the bolt that holds the strut to the wishbone. bloody thing just won\'d move! i\'ve tried everything from sockets with a breaker bar, grips, grips with a breaker bar, even a hammer and chisel!

i\'m about to make a couple of flat edges with a grinder and then attack it with a Stilson, but if that fails what else can i do? the only thing i can think of is cut the whole damn thing off and buy another linkage.
Title: the world\'s most rounded bolt...
Post by: RotaryMat on July 05, 2009, 01:26:55 PM
ow dear that\'s bad
Title: the world\'s most rounded bolt...
Post by: ro284 on July 05, 2009, 01:28:35 PM
Depends on the other end. is it a bolt? can you grind the head off and drift it out? as a last resort, good luck
Title: the world\'s most rounded bolt...
Post by: m1tch on July 05, 2009, 01:30:05 PM
You tried using a nut splitter? (basically cuts the nut in 1/2, its not like you can reuse it lol)
 
(http://www.pten.com/images/article/1192049172866_productSpotlight18.jpg)
Title: the world\'s most rounded bolt...
Post by: jackaleks on July 05, 2009, 02:19:17 PM
hmm, that nut splitter looks good, although i might just grind right through the ....... thing now.
 
no luck with the Stilson, that just chewed big holes into the nut.
Title: the world\'s most rounded bolt...
Post by: ozzyvelcro on July 05, 2009, 02:48:56 PM
I used this recently to remove a rounded off downpipe nut it worked a treat
http://www.machinemart.co.uk/shop/product/details/5-piece-bolt-grip-set
Title: the world\'s most rounded bolt...
Post by: jackaleks on July 05, 2009, 03:04:00 PM
well, looks like i\'ve been a bit overzealous with the grinding and gone into the thread :cool
 
does anyone know if you can replace the bolt in the linkage or do i need to buy a new one?
Title: the world\'s most rounded bolt...
Post by: Grizzly on July 05, 2009, 03:50:47 PM
Sure that side isn\'t captive?

I\'d be tempted to just grind it of with an Angle grinder and get a new bolt.
Title: the world\'s most rounded bolt...
Post by: steve garbutt on July 05, 2009, 04:00:28 PM
Quote from: ozzyvelcro;623084I used this recently to remove a rounded off downpipe nut it worked a treat
http://www.machinemart.co.uk/shop/product/details/5-piece-bolt-grip-set

As a mechanic i use these all the time and i they havent failed to shift a bolt yet :Thumbsup!
Title: the world\'s most rounded bolt...
Post by: DR SCHNITZEL on July 05, 2009, 04:12:26 PM
.... easy. as you said grind 2 edges into the rounded nut. then heat the thing up hot hot hot with a blowtorch. then get a spanner on it and it should slide off smooth.
Title: the world\'s most rounded bolt...
Post by: slingo on July 05, 2009, 07:21:52 PM
ive got a round spanner :Laugh
Title: the world\'s most rounded bolt...
Post by: grinder on July 05, 2009, 07:30:32 PM
our of interest - was you using a 6 sided socket ?
Title: the world\'s most rounded bolt...
Post by: batman on July 05, 2009, 11:24:15 PM
turbo socket they ll shift that easy
Title: the world\'s most rounded bolt...
Post by: jackaleks on July 06, 2009, 09:01:00 AM
Quote from: grinder;623152our of interest - was you using a 6 sided socket ?

i started out using a multi-sided socket and when that didn\'t work tried a flat sided socket...
 
then i tried grips and that didn\'t work (obviously). then i got out the hammer and chisel, then flattened it off with the grinder and used a Stilson which just chewed the nut to pieces.
 
got ....ed off and just attacked it with a grinder :rolleyes:. now i need a new stabiliser linkage!
 
thanks for the comments guys, i\'m pretty sure i know where i went wrong (i.e. everything!) so i should be set for any troublesome nuts at the front.
Title: the world\'s most rounded bolt...
Post by: grinder on July 06, 2009, 09:18:15 AM
im shocked a 6 sided one did that sort of damage - you would expect it to snap the bolt first !!
Title: the world\'s most rounded bolt...
Post by: jackaleks on July 06, 2009, 10:51:08 AM
i think the damage had already been done by the multi-sided socket/two foot long pole combo.
 
the picture at the top was taken after i\'d been at it with the hammer and chisel though :spank
Title: the world\'s most rounded bolt...
Post by: grinder on July 06, 2009, 11:31:17 AM
ahhhhhhhhhhhh that would make sense i suppose !!
Title: the world\'s most rounded bolt...
Post by: Adriansturgess on July 06, 2009, 02:20:55 PM
Would recommend a small squirt of WD40 and some mole grips (don\'t overdo the WD40 though) The bolt should then be quite re-useable methinks  :King
Title: the world\'s most rounded bolt...
Post by: David Nock (RIP) on July 06, 2009, 03:31:09 PM
If you can access the head of the nut simply drill a 1/16th or 1/8th hole down one side of the nut parallel to the axis (towards the strut) and split it off with a cold chisel. 1/16th or 1/8th drill depending on size of the nut. In other words break the nut like those tools above do.
Title: the world\'s most rounded bolt...
Post by: SmbFD3S on July 06, 2009, 04:52:50 PM
Used to happen all the time before i got a proper set of sockets with Hip Grip rather than Corner grip.  You can get anything off with a hip grip socket and have never rounded one off yet :D
Title: the world\'s most rounded bolt...
Post by: Archbish on July 07, 2009, 07:07:52 AM
when you put the replacement in, just do it up hand tight so it\'s easier to get off in future...




what???
Title: the world\'s most rounded bolt...
Post by: jackaleks on July 07, 2009, 09:22:05 AM
Quote from: Archbish;623727when you put the replacement in, just do it up hand tight so it\'s easier to get off in future...
 
 
 
 
what???

 
haha, torque values? what torque values?