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Re: [TR] TR torque method

To: list Triumph <triumphs@autox.team.net>
Subject: Re: [TR] TR torque method
From: Chris Simo <ccsimonsen@gmail.com>
Date: Sun, 6 Mar 2016 08:29:28 -0500
Delivered-to: mharc@autox.team.net
Delivered-to: triumphs@autox.team.net
References: <012a01d17664$b675ddc0$23619940$@flash.net> <CANzE1bEkvm9tV4oU=3Qhp6WSxsX04BuMpfq5Wj-ST_5vJz8R9A@mail.gmail.com> <001701d1767f$e1c91170$a55b3450$@flash.net> <CANhzkePwx8pJs-mxP7q9yjEreAUXu+DV2RNJJU9tsU5yMM-JvQ@mail.gmail.com>
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>
> There's many methods/opinions on how to check torque after heat cycling
> the engine.  Some head fasteners are one time torque and stretch the
> fastener during installation. Other's like our head hardware can be reused
> multiple times.
>
> For what it's worth,  I don't back off the nuts for the sole reason of
> fear of breaking the head gasket seal. It's a fear - not sure its
> validated.  I give a pull on each of the nuts with the torque wrench at the
> specified torque.  - Last engine rebuild, I got some movement on most of
> the nuts.  My 2 cents.
>
> Update - , my reused Payen head gasket on my TR4 is going on 4 years with
> no problems.  I did coat both sides with copper spray before installation -
> your results may vary. Speaking of which... I should order a spare
> headgasket :)
>

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<div dir=3D"ltr"><div class=3D"gmail_extra"><div class=3D"gmail_quote"><blo=
ckquote class=3D"gmail_quote" style=3D"margin:0 0 0 .8ex;border-left:1px #c=
cc solid;padding-left:1ex"><div dir=3D"ltr">There&#39;s many methods/opinio=
ns on how to check torque after heat cycling the engine.=C2=A0 Some head fa=
steners are one time torque and stretch the fastener during installation. O=
ther&#39;s like our head hardware can be reused multiple times.<div><br></d=
iv><div>For what it&#39;s worth, =C2=A0I don&#39;t back off the nuts for th=
e sole reason of fear of breaking the head gasket seal. It&#39;s a fear - n=
ot sure its validated.=C2=A0 I give a pull on each of the nuts with the tor=
que wrench at the specified torque. =C2=A0- Last engine rebuild, I got some=
 movement on most of the nuts.=C2=A0 My 2 cents.</div><div><br></div><div>U=
pdate - , my reused Payen head gasket on my TR4 is going on 4 years with no=
 problems.=C2=A0 I did coat both sides with copper spray before installatio=
n - your results may vary. Speaking of which... I should order a spare head=
gasket :)</div></div>
</blockquote></div><br></div></div>

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