[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Stretch bolts?
This is a multi-part message in MIME format.
------=_NextPart_000_006C_01C1FF37.BEBC9A40
Content-Type: text/plain;
charset="iso-8859-1"
Content-Transfer-Encoding: quoted-printable
Al-
My metalurgical background will allow me to give you an unequivical =
"yes" on reusing rod bolts. The 300deg F temps our bolts may see do =
not, repeat do not, affect the crystaline structure of iron-based alloys =
(i.e. steel). Only when you approach 1000deg F does steel alter its =
structure. =20
Have no fear, all our bolts have a lifetime that is far longer than =
yours and mine.......
That said, I fully agree with you on using new bolts during a build-up =
if you have the $ for new (and you'd better, otherwise you have no =
business rebuilding an engine....) You never know what the last guy did =
when he tightened them.....
Larry sandiego16V
----- Original Message -----=20
From: Allyn=20
To: Robbie Cotner ; scirocco-L@scirocco.org=20
Sent: Sunday, May 19, 2002 8:13 AM
Subject: Re: Stretch bolts?
im really not sure you would want to use rod bolts. with >100k on an =
engine those bolts have been heat cycled several hundred times. the more =
you heat cycle a part, the more it hardens. the more it hardens, the =
more brittle it gets. (the same argument goes for head bolts).
are the bolts still o.k. to use after >100k miles? probably. would i =
chance re-using rod bolts if i had the engine torn down to that level =
anyhow? nope.
Al
=20
Allyn Malventano, ETC(SS), USN
87 Rieger GTO Scirocco 16v (daily driver, 170k, rocco #6)
86 Kamei Twin 16V Turbo Scirocco GTX ('it has begun', rocco #7)
87 Jetta 8v Wolfsburg 2dr (daily driver, 260k, 0 rattles, original =
clutch, driveshafts, wheels :)
----- Original Message -----=20
From: Robbie Cotner=20
To: scirocco-L@scirocco.org=20
Sent: Sunday, May 19, 2002 12:20 AM
Subject: Re: Stretch bolts?
I wonder if you could reuse rod bolts too....=20
Rob(crosses fingers hoping he can save $$)=20
Captnbr@aol.com wrote:=20
<<we reused those headbolts and i never had one problem.>>>
I too reused my headbolts when i redid the head on my 16v. That =
was 6 years ago. No problems at all.
Brian 86 16v
98 Jetta GLX Vr6
_______________________________________________
Scirocco-l mailing list
Scirocco-l@scirocco.org
http://neubayern.net/mailman/listinfo/scirocco-l
-------------------------------------------------------------------------=
---
Do You Yahoo!?
Yahoo! Health - your guide to health and wellness
------=_NextPart_000_006C_01C1FF37.BEBC9A40
Content-Type: text/html;
charset="iso-8859-1"
Content-Transfer-Encoding: quoted-printable
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML><HEAD>
<META content=3D"text/html; charset=3Diso-8859-1" =
http-equiv=3DContent-Type>
<META content=3D"MSHTML 5.00.2614.3500" name=3DGENERATOR>
<STYLE></STYLE>
</HEAD>
<BODY bgColor=3D#ffffff>
<DIV><FONT face=3DArial size=3D2>Al-</FONT></DIV>
<DIV><FONT face=3DArial size=3D2> My metalurgical background will =
allow me to=20
give you an unequivical "yes" on reusing rod bolts. The 300deg F =
temps our=20
bolts may see do not, repeat do not, affect the crystaline structure of=20
iron-based alloys (i.e. steel). Only when you approach 1000deg F =
does=20
steel alter its structure. </FONT></DIV>
<DIV><FONT face=3DArial size=3D2>Have no fear, all our bolts have a =
lifetime that is=20
far longer than yours and mine.......</FONT></DIV>
<DIV> </DIV>
<DIV><FONT face=3DArial size=3D2>That said, I fully agree with you on =
using =20
new bolts during a build-up if you have the $ for new (and you'd better, =
otherwise you have no business rebuilding an engine....) You never =
know=20
what the last guy did when he tightened them.....</FONT></DIV>
<DIV> </DIV>
<DIV><FONT face=3DArial size=3D2>Larry sandiego16V</FONT></DIV>
<BLOCKQUOTE=20
style=3D"BORDER-LEFT: #000000 2px solid; MARGIN-LEFT: 5px; MARGIN-RIGHT: =
0px; PADDING-LEFT: 5px; PADDING-RIGHT: 0px">
<DIV style=3D"FONT: 10pt arial">----- Original Message ----- </DIV>
<DIV=20
style=3D"BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: =
black"><B>From:</B>=20
<A href=3D"mailto:amalventano1@comcast.net"=20
title=3Damalventano1@comcast.net>Allyn</A> </DIV>
<DIV style=3D"FONT: 10pt arial"><B>To:</B> <A =
href=3D"mailto:robw_z@yahoo.com"=20
title=3Drobw_z@yahoo.com>Robbie Cotner</A> ; <A=20
href=3D"mailto:scirocco-L@scirocco.org"=20
title=3Dscirocco-L@scirocco.org>scirocco-L@scirocco.org</A> </DIV>
<DIV style=3D"FONT: 10pt arial"><B>Sent:</B> Sunday, May 19, 2002 8:13 =
AM</DIV>
<DIV style=3D"FONT: 10pt arial"><B>Subject:</B> Re: Stretch =
bolts?</DIV>
<DIV><BR></DIV>
<DIV><FONT face=3DArial size=3D2>im really not sure you would want to =
use rod=20
bolts. with >100k on an engine those bolts have been heat cycled =
several=20
hundred times. the more you heat cycle a part, the more it hardens. =
the more=20
it hardens, the more brittle it gets. (the same argument goes for head =
bolts).</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>are the bolts still o.k. to use after =
>100k=20
miles? probably. would i chance re-using rod bolts if i had the engine =
torn=20
down to that level anyhow? nope.</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>Al</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT> </DIV>
<DIV><FONT face=3DArial size=3D2>Allyn Malventano, ETC(SS), USN<BR>87 =
Rieger GTO=20
Scirocco 16v (daily driver, 170k, rocco #6)<BR>86 Kamei Twin 16V Turbo =
Scirocco GTX ('it has begun', rocco #7)<BR>87 Jetta 8v Wolfsburg 2dr =
(daily=20
driver, 260k, 0 rattles, original clutch, driveshafts, wheels=20
:)<BR></FONT></DIV>
<BLOCKQUOTE=20
style=3D"BORDER-LEFT: #000000 2px solid; MARGIN-LEFT: 5px; =
MARGIN-RIGHT: 0px; PADDING-LEFT: 5px; PADDING-RIGHT: 0px">
<DIV style=3D"FONT: 10pt arial">----- Original Message ----- </DIV>
<DIV=20
style=3D"BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: =
black"><B>From:</B>=20
<A href=3D"mailto:robw_z@yahoo.com"; title=3Drobw_z@yahoo.com>Robbie =
Cotner</A>=20
</DIV>
<DIV style=3D"FONT: 10pt arial"><B>To:</B> <A=20
href=3D"mailto:scirocco-L@scirocco.org"=20
title=3Dscirocco-L@scirocco.org>scirocco-L@scirocco.org</A> </DIV>
<DIV style=3D"FONT: 10pt arial"><B>Sent:</B> Sunday, May 19, 2002 =
12:20=20
AM</DIV>
<DIV style=3D"FONT: 10pt arial"><B>Subject:</B> Re: Stretch =
bolts?</DIV>
<DIV><BR></DIV>
<P>
<P> I wonder if you could reuse rod bolts too....=20
<P>Rob(crosses fingers hoping he can save $$)=20
<P><B><I><A =
href=3D"mailto:Captnbr@aol.com";>Captnbr@aol.com</A></I></B> wrote:=20
<BLOCKQUOTE=20
style=3D"BORDER-LEFT: #1010ff 2px solid; MARGIN-LEFT: 5px; =
PADDING-LEFT: 5px"><<<FIRST=20
16v. <br>we reused those headbolts and i never had one=20
problem.>>><BR><BR>I too reused my headbolts when i redid =
the=20
head on my 16v. That was 6 years ago. No problems at =
all.<BR><BR>Brian 86=20
16v<BR>98 Jetta GLX=20
=
Vr6<BR><BR>_______________________________________________<BR>Scirocco-l =
mailing=20
=
list<BR>Scirocco-l@scirocco.org<BR>http://neubayern.net/mailman/listinfo/=
scirocco-l</BLOCKQUOTE>
<P><BR>
<HR SIZE=3D1>
<B>Do You Yahoo!?</B><BR><A=20
href=3D"http://rd.yahoo.com/welcome/*http://health.yahoo.com";>Yahoo! =
Health</A> - your guide to health and=20
wellness</BLOCKQUOTE></BLOCKQUOTE></BODY></HTML>
------=_NextPart_000_006C_01C1FF37.BEBC9A40--