Subject: Re: [Healeys] retorquing cylinder head nuts

From: Oudesluys <[email-masked]>
Date: Sat, 16 May 2015 09:24:38 +0200

When re-torquing bolts/nuts I always break them loose by loosening them 
the smallest angle possible before I re-tighten them.
Kees Oudesluijs

Bob Haskell schreef op 16-5-2015 om 3:33:
> Listers,
> When retorquing cylinder head, should one loosen the nut being retorqued first? Not completely loose, but I would think that a nut could be under torqued, but would take more than the spec torque to break it loose.
>
> Cheers,
>
> Bob Haskell
> '60 AH3000 BT7 (big project)
> '62 AH3000 BT7 (smaller project)
> '64 Mini Cooper (small project - by definition)
> '68 BMW 1600 (first car - project)
> '80 MBG LE (running?)
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From: Richard Ewald <[email-masked]>
Date: Mon, 18 May 2015 07:09:59 -0700

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Yes you must loosen a nut/bolt before torquing.  It makes more torque to
break the nut/bolt loose than it does to keep it turning.

On Fri, May 15, 2015 at 6:33 PM, Bob Haskell <[email-masked]>
wrote:

> Listers,
> When retorquing cylinder head, should one loosen the nut being retorqued
> first? Not completely loose, but I would think that a nut could be under
> torqued, but would take more than the spec torque to break it loose.
>
> Cheers,
>
> Bob Haskell
> Unsubscribe/Manage:
> http://autox.team.net/mailman/options/healeys/[email-masked]
>
>

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<div dir=3D"ltr">Yes you must loosen a nut/bolt before torquing.=C2=A0 It m=
akes more torque to break the nut/bolt loose than it does to keep it turnin=
g.</div><div class=3D"gmail_extra"><br><div class=3D"gmail_quote">On Fri, M=
ay 15, 2015 at 6:33 PM, Bob Haskell <span dir=3D"ltr">&lt;<a href=3D"mailto=
:[email-masked]" target=3D"_blank">[email-masked]</a>&gt;=
</span> wrote:<br><blockquote class=3D"gmail_quote" style=3D"margin:0 0 0 .=
8ex;border-left:1px #ccc solid;padding-left:1ex">Listers,<br>
When retorquing cylinder head, should one loosen the nut being retorqued fi=
rst? Not completely loose, but I would think that a nut could be under torq=
ued, but would take more than the spec torque to break it loose.<br>
<br>
Cheers,<br>
<br>
Bob Haskell<br>
&#39;60 AH3000 BT7 (big project)<br>
&#39;62 AH3000 BT7 (smaller project)<br>
&#39;64 Mini Cooper (small project - by definition)<br>
&#39;68 BMW 1600 (first car - project)<br>
&#39;80 MBG LE (running?)<br>
_______________________________________________<br>
nk">http://www.team.net/donate.html</a><br>
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</blockquote></div><br></div>

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From: richard mayor <[email-masked]>
Date: Tue, 19 May 2015 00:25:12 +0000

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I back off the nut about 1/8th of a turn before re-torquing.=20

Date: Mon=2C 18 May 2015 07:09:59 -0700
From: [email-masked]
To: [email-masked]
CC: [email-masked]
Subject: Re: [Healeys] retorquing cylinder head nuts

Yes you must loosen a nut/bolt before torquing.  It makes more torque to br=
eak the nut/bolt loose than it does to keep it turning.
On Fri=2C May 15=2C 2015 at 6:33 PM=2C Bob Haskell <[email-masked]=
> wrote:
Listers=2C
=0A=
When retorquing cylinder head=2C should one loosen the nut being retorqued =
first? Not completely loose=2C but I would think that a nut could be under =
torqued=2C but would take more than the spec torque to break it loose.
=0A=

=0A=
Cheers=2C
=0A=

=0A=
Bob Haskell
=0A=
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=0A=
=0A=
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=0A=
=0A=
=0A=
=0A=
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=0A=
[email-masked]
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=0A=

=0A=
[email-masked]
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=0A=

=0A=

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<body class=3D'hmmessage'><div dir=3D'ltr'>I back off the nut about 1/8th o=
f a turn before re-torquing. <br><br><div><hr id=3D"stopSpelling">Date: Mon=
=2C 18 May 2015 07:09:59 -0700<br>From: [email-masked]<br>To: rcha=
[email-masked]<br>CC: [email-masked]<br>Subject: Re: [Healeys]=
 retorquing cylinder head nuts<br><br><div dir=3D"ltr">Yes you must loosen =
a nut/bolt before torquing.&nbsp=3B It makes more torque to break the nut/b=
olt loose than it does to keep it turning.</div><div class=3D"ecxgmail_extr=
a"><br><div class=3D"ecxgmail_quote">On Fri=2C May 15=2C 2015 at 6:33 PM=2C=
 Bob Haskell <span dir=3D"ltr">&lt=3B<a href=3D"mailto:rchaskell@earthlink.=
net" target=3D"_blank">[email-masked]</a>&gt=3B</span> wrote:<br><=
blockquote class=3D"ecxgmail_quote" style=3D"border-left:1px #ccc solid=3Bp=
adding-left:1ex=3B">Listers=2C<br>=0A=
When retorquing cylinder head=2C should one loosen the nut being retorqued =
first? Not completely loose=2C but I would think that a nut could be under =
torqued=2C but would take more than the spec torque to break it loose.<br>=
=0A=
<br>=0A=
Cheers=2C<br>=0A=
<br>=0A=
Bob Haskell<br>=0A=
'60 AH3000 BT7 (big project)<br>=0A=
'62 AH3000 BT7 (smaller project)<br>=0A=
'64 Mini Cooper (small project - by definition)<br>=0A=
'68 BMW 1600 (first car - project)<br>=0A=
'80 MBG LE (running?)<br>=0A=
_______________________________________________<br>=0A=
nk">http://www.team.net/donate.html</a><br>=0A=
Archive: <a href=3D"http://www.team.net/archive" target=3D"_blank">http://w=
ww.team.net/archive</a><br>=0A=
Forums: <a href=3D"http://www.team.net/forums" target=3D"_blank">http://www=
.team.net/forums</a><br>=0A=
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s/richard.ewald%40gmail.com" target=3D"_blank">http://autox.team.net/mailma=
n/options/healeys/[email-masked]</a><br>=0A=
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