AW: SER1 Long weekend fun!

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From: Ulrico Becker
Subject: AW: SER1 Long weekend fun!
Date: 09:55 on 12 Jun 2005
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Have you used a simple torque wrench or have you tmeasured the angle by
which they were tightened? This method is necessary in modern engines
because it eliminates all "waste of torque" due to friction inside of the
thread or of the bolt's base and the head casting. 
 
Ulrico

  _____  

Von: series1-host@xxxxxxxxx.xxx [mailto:series1-host@xxxxxxxxx.xxx] Im
Auftrag von Bruce Stewart
Gesendet: Sonntag, 12. Juni 2005 09:45
An: series1@xxxxxxxxx.xxx
Betreff: SER1 Long weekend fun!


Tis a long weekend here in Oz and of course our Series 1 (Disco) decided to
die
in the engine department. Head gasket at No4 let go into the coolant circuit
so
had a lovely compressor spraying coolant over everything via the cap.
 
There was something odd I noticed when I was undoing the cylinder head
bolts....
some were not very tight and others were!.....100K ago we bought the car
with a blown
head gasket, I pulled it down and had the head done up plus the turbo
kitted, new injectors
etc etc....has been fine since till now.....when I installed the head I
carefully followed the
instructions of torquing the head down then dial tensioning to the correct
figures....it was tight
as I recall splitting the side out of a Rothenburger socket!....
 
I can't work out why some bolts weren't that tight?....they of course may
have stretched....
any clues as to what happens here?
 
Cheers
Bruce from Bungendore......
 
 

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<DIV dir=3Dltr align=3Dleft><SPAN class=3D663375209-12062005><FONT =
color=3D#0000ff>Have=20
you used a simple torque wrench or have you tmeasured the angle by which =
they=20
were tightened? This method is necessary in modern engines because it =
eliminates=20
all "waste of torque" due to friction inside of the thread or of the =
bolt's base=20
and the head casting. </FONT></SPAN></DIV>
<DIV dir=3Dltr align=3Dleft><SPAN class=3D663375209-12062005><FONT=20
color=3D#0000ff></FONT></SPAN>&nbsp;</DIV>
<DIV dir=3Dltr align=3Dleft><SPAN class=3D663375209-12062005><FONT=20
color=3D#0000ff>Ulrico</FONT></SPAN></DIV><BR>
<DIV class=3DOutlookMessageHeader lang=3Dde dir=3Dltr align=3Dleft>
<HR tabIndex=3D-1>
<FONT face=3DTahoma size=3D2><B>Von:</B> series1-host@xxxxxxxxx.xxx=20
[mailto:series1-host@xxxxxxxxx.xxx] <B>Im Auftrag von </B>Bruce=20
Stewart<BR><B>Gesendet:</B> Sonntag, 12. Juni 2005 09:45<BR><B>An:</B>=20
series1@xxxxxxxxx.xxx<BR><B>Betreff:</B> SER1 Long weekend=20
fun!<BR></FONT><BR></DIV>
<DIV></DIV>
<DIV><FONT face=3DArial size=3D2>Tis a long weekend here in Oz and of =
course our=20
Series&nbsp;1 (Disco) decided to die</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>in the engine department. Head =
gasket&nbsp;at No4=20
let go into the coolant circuit so</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>had a lovely compressor spraying =
coolant over=20
everything via the cap.</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2>There was something odd I noticed when =
I was=20
undoing the cylinder head bolts....</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>some were not very tight and others =
were!.....100K=20
ago we bought the car with a blown</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>head gasket, I pulled it down and had =
the head done=20
up plus the&nbsp;turbo kitted, new injectors</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>etc etc....has been fine since till =
now.....when I=20
installed the head I carefully followed the</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>instructions of torquing the head down =
then dial=20
tensioning to the correct figures....it was tight</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>as I recall splitting the side out of a =

Rothenburger socket!....</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2>I can't work out why some bolts weren't =
that=20
tight?....they of course may have stretched....</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>any clues as to what happens =
here?</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2>Cheers</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>Bruce from =
Bungendore......</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2></FONT>&nbsp;</DIV></BODY></HTML>

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SER1 Long weekend fun!
Bruce Stewart 07:45 on 12 Jun 2005

AW: SER1 Long weekend fun!
Ulrico Becker 09:55 on 12 Jun 2005

Re: SER1 Long weekend fun!
Bruce Stewart 21:17 on 12 Jun 2005

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