--===============5000227376277458500==
boundary="_D4BC2803-1B84-4425-9CC9-D0C548123B8B_"
--_D4BC2803-1B84-4425-9CC9-D0C548123B8B_
Content-Transfer-Encoding: quoted-printable
Hi Jim,
I have heard about experiences like those of your friend many many times.
I would suggest that the machinist who did your engine had previously encou=
ntered problems with bronze guides and hogged them out to provide lots of c=
learance.
As explained in my article there are penalties associated with doing that =
but excessive clearance does minimize the possibility of a catastrophic eng=
ine failure caused by the head of a valve going through a piston.
The thing is however that if it is necessary to make the clearances larger =
than those of the cast iron guides that you are replacing then why bother c=
hanging them at all.
Michael S
BN1 #174
-----Original Message-----
From: "healeymanjim" <healeymanjim@hansencc.net>
Sent: =E2=80=8E27/=E2=80=8E01/=E2=80=8E2016 11:13 p.m.
To: "healeys@autox.team.net" <healeys@autox.team.net>
Subject: [Healeys] bronze guides
i have had bronze guides now for about 18 years with no problem. friend ha=
d them put in his bj8 and we had to pull head=20
and take it back to machinist because of valves hanging up. still had a li=
ttle problem on one valve, but it eventually wore in. =20
appears to be a machinist problem on the ones i am familiar with.
_______________________________________________
Archive: http://www.team.net/archive
Healeys@autox.team.net
http://autox.team.net/mailman/listinfo/healeys
lter@gmail.com
--_D4BC2803-1B84-4425-9CC9-D0C548123B8B_
Content-Transfer-Encoding: quoted-printable
<html><head><meta http-equiv=3D"Content-Type" content=3D"text/html; charset=
=3Dutf-8"></head><body><div><div style=3D"font-family: Calibri,sans-serif; =
font-size: 11pt;">Hi Jim,<br>I have heard about experiences like those of y=
our friend many many times.<br>I would suggest that the machinist who did y=
our engine had previously encountered problems with bronze guides and hogge=
d them out to provide lots of clearance.<br> As explained in my article the=
re are penalties associated with doing that but excessive clearance does mi=
nimize the possibility of a catastrophic engine failure caused by the head =
of a valve going through a piston.<br>The thing is however that if it is ne=
cessary to make the clearances larger than those of the cast iron guides th=
at you are replacing then why bother changing them at all.<br>Michael S<br>=
BN1 #174</div></div><div dir=3D"ltr"><hr><span style=3D"font-family: Calibr=
i,sans-serif; font-size: 11pt; font-weight: bold;">From: </span><span style=
=3D"font-family: Calibri,sans-serif; font-size: 11pt;"><a href=3D"mailto:he=
aleymanjim@hansencc.net">healeymanjim</a></span><br><span style=3D"font-fam=
ily: Calibri,sans-serif; font-size: 11pt; font-weight: bold;">Sent: </span>=
<span style=3D"font-family: Calibri,sans-serif; font-size: 11pt;">=E2=80=8E=
27/=E2=80=8E01/=E2=80=8E2016 11:13 p.m.</span><br><span style=3D"font-famil=
y: Calibri,sans-serif; font-size: 11pt; font-weight: bold;">To: </span><spa=
n style=3D"font-family: Calibri,sans-serif; font-size: 11pt;"><a href=3D"ma=
ilto:healeys@autox.team.net">healeys@autox.team.net</a></span><br><span sty=
le=3D"font-family: Calibri,sans-serif; font-size: 11pt; font-weight: bold;"=
>Subject: </span><span style=3D"font-family: Calibri,sans-serif; font-size:=
11pt;">[Healeys] bronze guides</span><br><br></div>i have had bronze guide=
s now for about 18 years with no problem. friend had them put in his =
bj8 and we had to pull head <br>and take it back to machinist because of va=
lves hanging up. still had a little problem on one valve, but it even=
tually wore in. <br>appears to be a machinist problem on the ones i a=
m familiar with.<br>_______________________________________________<br>Supp=
ort Team.Net http://www.team.net/donate.html<br>Suggested annual donation&n=
bsp; $12.75<br>Archive: http://www.team.net/archive<br>Forums: http://www.t=
eam.net/forums<br><br>Healeys@autox.team.net<br>http://autox.team.net/mailm=
an/listinfo/healeys<br><br>Unsubscribe/Manage: http://autox.team.net/mailma=
n/options/healeys/michaelsalter@gmail.com<br><br></body></html>=
--_D4BC2803-1B84-4425-9CC9-D0C548123B8B_--
--===============5000227376277458500==
Content-Transfer-Encoding: 7bit
Content-Disposition: inline
_______________________________________________
Archive: http://www.team.net/archive
Healeys@autox.team.net
http://autox.team.net/mailman/listinfo/healeys
--===============5000227376277458500==--
|