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I have a similar cam to the Kent 266. I guess a larger gap would be better =
than too tight in any case, but I'll see wher they are at right now and the=
n try .015 for a start.=C2=A0=20
=20
On Saturday, October 31, 2015 3:15 PM, Michael Rowe via Spridgets <spr=
idgets@autox.team.net> wrote:
=20
=20
I=C2=A0used Minisport roller rockers bought cheap in the 2008-9 crash.=C2=
=A0 I no longer remember, but they probably are 1.5 (red),=C2=A0and I also=
=C2=A0used a "warm" Elgin cam that came in a box of parts.=C2=A0Where=C2=A0=
higher ratio rockers=C2=A0are to be used, the required valve clearance can =
then be assessed using this simple formula. For instance when using 1.5 roc=
kers, you obviously need to multiply the cam/follower clearance by 1.5. So =
0.010-in x 1.5 gives 0.015-in for standard/mild cams and 0.012-in x 1.5 giv=
es 0.018-in for race/more-modified cams. Interestingly, most re-profiled pe=
rformance cams generally have a suggested valve clearance of 0.016-in with =
standard ratio rockers. To assess required valve clearance where higher rat=
io rockers are used simply work it backwards and multiply by the higher rat=
io. This works out as 0.016-in divided by 1.25 =3D 0.0128, then x 1.5 =3D 0=
.0192" - or 0.019" at the valve.
----- Original Message ----- From: Michael MacLean To: Rick Fisk ; Micha=
el Rowe Cc: Spridgets Sent: Saturday, October 31, 2015 4:49 PM Subject: R=
e: [Spridgets] rocker clearance=20
How about when you have 1.5 rocker arms?=C2=A0 Drove the Bugeye around ye=
sterday.=C2=A0 Runs great, still blue smoke on acceleration on a recent reb=
uild.=C2=A0 At leat 1000 miles since rebuild.=C2=A0 I'm afraid the rings ne=
ver seated properly.=C2=A0 Not sure of the cylinder wall surface during the=
rebuild as I did not so that part of it.
Mike MacLean
=20
=20
On Saturday, October 31, 2015 1:26 PM, Rick Fisk via Spridgets <spridge=
ts@autox.team.net> wrote:
=20
The 0.029 in. spec is a whole different thing used when you are assembl=
ing the engine. =C2=A0If your engine is together and you just want to set t=
he valve clearance it should be 0.012 in. set cold.
Sent from my keyboard =20
On Oct 31, 2015, at 4:06 PM, Michael Rowe via Spridgets <spridgets@autox.te=
am.net> wrote:
=20
=20
New 1275 engine. Haynes says "Rocker clearance, timing only =3D=C2=A0=
0.029 in. My mechanic/tutor says, "that is twice what it should be." Bentle=
y says: Rocker clearance: Running (Standard) =3D 0.012 in. cold =C2=A0=C2=
=A0=C2=A0 =C2=A0=C2=A0=C2=A0 =C2=A0=C2=A0=C2=A0 =C2=A0=C2=A0=C2=A0 =C2=A0=
=C2=A0=C2=A0 =C2=A0=C2=A0=C2=A0 =C2=A0=C2=A0=C2=A0 =C2=A0=C2=A0=C2=A0 Runni=
ng (competition work) =3D 0.015 in. =C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=
=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=
=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 ti=
ming=C2=A0=C2=A0=C2=A0 =C2=A0=C2=A0=C2=A0 =3D 0.029 in. Online sites=C2=A0a=
gree on=C2=A0 =3D .012 in. cold. =C2=A0 So what is the 0.029 in. for? =C2=
=A0 Michael Rowe=20
------------------------
spridgets@autox.team.net
Archive: http://www.team.net/archive
chartermi.net
------------------------
spridgets@autox.team.net
Archive: http://www.team.net/archive
eer.mike@att.net
------------------------
spridgets@autox.team.net
Archive: http://www.team.net/archive
eer.mike@att.net
=20
------=_Part_277960_132215619.1446333309782
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<html><head></head><body><div style=3D"color:#000; background-color:#fff; f=
ont-family:times new roman, new york, times, serif;font-size:16px"><div id=
=3D"yui_3_16_0_1_1446328654136_6686" dir=3D"ltr">I have a similar cam to th=
e Kent 266. I guess a larger gap would be better than too tight in any case=
, but I'll see wher they are at right now and then try .015 for a start.&nb=
sp; <br></div><div id=3D"yui_3_16_0_1_1446328654136_6666"><span></span></di=
v> <br><div class=3D"qtdSeparateBR"><br><br></div><div style=3D"display: b=
lock;" class=3D"yahoo_quoted"> <div style=3D"font-family: times new roman, =
new york, times, serif; font-size: 16px;"> <div style=3D"font-family: Helve=
ticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif; font=
-size: 16px;"> <div dir=3D"ltr"> <font face=3D"Arial" size=3D"2"> On Saturd=
ay, October 31, 2015 3:15 PM, Michael Rowe via Spridgets <spridgets@auto=
x.team.net> wrote:<br> </font> </div> <blockquote style=3D"border-left: =
2px solid rgb(16, 16, 255); margin-left: 5px; margin-top: 5px; padding-left=
: 5px;"> <br><br> <div class=3D"y_msg_container"><div id=3D"yiv2869694541"=
><div>
<div><font face=3D"Arial">I used Minisport roller rockers bought cheap=
in the=20
2008-9 crash. I no longer remember, but they probably are 1.5=20
(red), and I also used a "warm" Elgin cam that came in a box of=
=20
parts.</font></div>
<div><font face=3D"Arial"></font> </div>
<div><span>Where <a rel=3D"nofollow" shape=3D"rect" target=3D"_blank" =
href=3D"http://www.spridgetmania.com/part/C-AHT436/Roller-Tipped-15-Ratio-R=
ockers-Aluminum">higher=20
ratio rockers</a> are to be used, the required valve clearance can the=
n be=20
assessed using this simple formula. For instance when using 1.5 rockers, yo=
u=20
obviously need to multiply the cam/follower clearance by 1.5. So 0.010-in x=
1.5=20
gives 0.015-in for standard/mild cams and 0.012-in x 1.5 gives 0.018-in for=
=20
race/more-modified cams. Interestingly, most re-profiled performance cams=
=20
generally have a suggested valve clearance of 0.016-in with standard ratio=
=20
rockers. To assess required valve clearance where higher ratio rockers are =
used=20
simply work it backwards and multiply by the higher ratio. This works out a=
s=20
0.016-in divided by 1.25 =3D 0.0128, then x 1.5 =3D 0.0192" - or 0.019" at =
the=20
valve.</span></div>
<div class=3D"yiv2869694541yqt8983054935" id=3D"yiv2869694541yqt87935"><blo=
ckquote dir=3D"ltr" style=3D"BORDER-LEFT:#000000 2px solid;PADDING-LEFT:5px=
;PADDING-RIGHT:0px;MARGIN-LEFT:5px;MARGIN-RIGHT:0px;">
<div style=3D"FONT:10pt arial;">----- Original Message ----- </div>
<div style=3D"FONT:10pt arial;BACKGROUND:#e4e4e4;"><b>From:</b>=20
<a rel=3D"nofollow" shape=3D"rect" title=3D"rrengineer.mike@att.net" ymai=
lto=3D"mailto:rrengineer.mike@att.net"; target=3D"_blank" href=3D"mailto:rre=
ngineer.mike@att.net">Michael=20
MacLean</a> </div>
<div style=3D"FONT:10pt arial;"><b>To:</b> <a rel=3D"nofollow" shape=3D"r=
ect" title=3D"refisk@chartermi.net" ymailto=3D"mailto:refisk@chartermi.net"=
target=3D"_blank" href=3D"mailto:refisk@chartermi.net";>Rick Fisk</a> ; <a =
rel=3D"nofollow" shape=3D"rect" title=3D"mdrowe@optonline.net" ymailto=3D"m=
ailto:mdrowe@optonline.net" target=3D"_blank" href=3D"mailto:mdrowe@optonli=
ne.net">Michael Rowe</a>=20
</div>
<div style=3D"FONT:10pt arial;"><b>Cc:</b> <a rel=3D"nofollow" shape=3D"r=
ect" title=3D"spridgets@autox.team.net" ymailto=3D"mailto:spridgets@autox.t=
eam.net" target=3D"_blank" href=3D"mailto:spridgets@autox.team.net";>Spridge=
ts</a> </div>
<div style=3D"FONT:10pt arial;"><b>Sent:</b> Saturday, October 31, 2015 4=
:49=20
PM</div>
<div style=3D"FONT:10pt arial;"><b>Subject:</b> Re: [Spridgets] rocker=20
clearance</div>
<div><br clear=3D"none"></div>
<div style=3D"BACKGROUND-COLOR:#fff;FONT-FAMILY:times new roman, new york=
, times, serif;COLOR:#000;FONT-SIZE:16px;">
<div id=3D"yiv2869694541yui_3_16_0_1_1446323015003_17729">How about when =
you have 1.5 rocker=20
arms? Drove the Bugeye around yesterday. Runs great, still bl=
ue=20
smoke on acceleration on a recent rebuild. At leat 1000 miles since=
=20
rebuild. I'm afraid the rings never seated properly. Not sure=
of=20
the cylinder wall surface during the rebuild as I did not so that part of=
=20
it.<br clear=3D"none"></div>
<div dir=3D"ltr" id=3D"yiv2869694541yui_3_16_0_1_1446323015003_17730">Mik=
e MacLean<br clear=3D"none"></div>
<div id=3D"yiv2869694541yui_3_16_0_1_1446323015003_17731"><span></span></=
div><br clear=3D"none">
<div class=3D"yiv2869694541qtdSeparateBR"><br clear=3D"none"><br clear=3D=
"none"></div>
<div class=3D"yiv2869694541yahoo_quoted" style=3D"DISPLAY:block;">
<div style=3D"FONT-FAMILY:times new roman, new york, times, serif;FONT-SI=
ZE:16px;">
<div style=3D"FONT-FAMILY:HelveticaNeue, Helvetica Neue, Helvetica, Arial=
, Lucida Grande, sans-serif;FONT-SIZE:16px;">
<div dir=3D"ltr"><font face=3D"Arial" size=3D"2">On Saturday, October 31,=
2015 1:26 PM,=20
Rick Fisk via Spridgets <<a rel=3D"nofollow" shape=3D"rect" ymailto=3D=
"mailto:spridgets@autox.team.net"; target=3D"_blank" href=3D"mailto:spridget=
s@autox.team.net">spridgets@autox.team.net</a>>=20
wrote:<br clear=3D"none"></font></div>
<blockquote style=3D"BORDER-LEFT:rgb(16,16,255) 2px solid;MARGIN-TOP:5px;=
PADDING-LEFT:5px;MARGIN-LEFT:5px;"><br clear=3D"none"><br clear=3D"none">
<div class=3D"yiv2869694541y_msg_container">
<div id=3D"yiv2869694541">
<div>
<div>The 0.029 in. spec is a whole different thing used when you are=20
assembling the engine. If your engine is together and you just wa=
nt to=20
set the valve clearance it should be 0.012 in. set cold.<br clear=3D"no=
ne"><br clear=3D"none">Sent from my keyboard</div>
<div class=3D"yiv2869694541yqt3461902488" id=3D"yiv2869694541yqt61360">
<div><br clear=3D"none">On Oct 31, 2015, at 4:06 PM, Michael Rowe via S=
pridgets=20
<<a rel=3D"nofollow" shape=3D"rect" ymailto=3D"mailto:spridgets@auto=
x.team.net" target=3D"_blank" href=3D"mailto:spridgets@autox.team.net";>spri=
dgets@autox.team.net</a>>=20
wrote:<br clear=3D"none"><br clear=3D"none"></div>
<blockquote type=3D"cite">
<div></div></blockquote></div></div>
<div class=3D"yiv2869694541yqt3461902488" id=3D"yiv2869694541yqt64797">
<style></style>
</div>
<div>
<div class=3D"yiv2869694541yqt3461902488" id=3D"yiv2869694541yqt61805">
<div><font face=3D"Arial">New 1275 engine.</font></div>
<div><font face=3D"Arial">Haynes says "Rocker clearance, timing only=20
=3D 0.029 in.</font></div>
<div><font face=3D"Arial">My mechanic/tutor says, "that is twice what i=
t should=20
be."</font></div>
<div><font face=3D"Arial">Bentley says:</font></div>
<div><font face=3D"Arial">Rocker clearance: Running (Standard) =3D 0.01=
2 in.=20
cold</font></div>
<div><font face=3D"Arial"> =20
&n=
bsp;=20
Running (competition work) =3D 0.=
015=20
in.</font></div>
<div><font face=3D"Arial"> &nb=
sp; =
=20
timing =3D 0.029 in.</font></div>
<div><font face=3D"Arial">Online sites agree on =3D .012 in.=
=20
cold.</font></div>
<div><font face=3D"Arial"></font> </div>
<div><font face=3D"Arial">So what is the 0.029 in. for?</font></div>
<div><font face=3D"Arial"></font> </div>
<div><font face=3D"Arial">Michael Rowe</font></div></div>
<blockquote type=3D"cite">
<div><span>------------------------</span><br clear=3D"none"><span></=
span><br clear=3D"none"><span><a rel=3D"nofollow" shape=3D"rect" ymailto=3D=
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<div class=3D"yiv2869694541yqt3461902488" id=3D"yiv2869694541yqt21911">=
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