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Ed Iskedarian cut the cam on my car 45 years ago. He called it a hot street
cam. I lost the info about it years ago.
Ira Erbs
Portland, OR
typos and artifacts are the fault of my phone
On Thu, Aug 22, 2019, 9:56 PM WILLIAM B LAWRENCE <ynotink@msn.com> wrote:
> A high lift cam means that the valves come off the seat earlier and land
> back on the seat later than standard. That limits the valve's dwell time on
> the seat, which is critical to heat transfer from the valve to the seat.
> Greater clearance is the compromise to extend valve life. Isky specifies
> 0.018" for my cam. If you know the source of the cam I would go back to
> them for the spec.
>
> I have the OA6, OA7, and OA8 needles and have tried them all. I found
> that, at least at this altitude (5,000-6,000 feet), the standard OA7s give
> the best results.
>
> Bill Lawrence
> BN1 #554
> ------------------------------
> *From:* Healeys <healeys-bounces@autox.team.net> on behalf of Steven
> Kingsbury via Healeys <healeys@autox.team.net>
> *Sent:* Thursday, August 22, 2019 1:56 AM
> *To:* healeys@autox.team.net <healeys@autox.team.net>
> *Subject:* [Healeys] Valve Clearances for an M
>
> OK folks, I know the setting for valve clearances on a 100 is 0.012, but
> when a hotter cam gets put in to a 100 with larger carbs and different
> pistons, does it stay 0.012? I am going to check all of the clearances on
> the set up as it sits now before I do any adjusting of anything, but
> thought I would run this by everyone before I touch or move anything.
> Thanks in advance.
> And just as an update, I got the OA6 Rich needles in now, I brought
> both jets up in the carbs evenly and then let them back down 12 flats each,
> so I've now got a base line to work with. I am re-installing the alternator
> conversion that was Mickey Moused into position with the Moss/AH Spares
> kit, which is quite nice nice and then I also just got a Snap On timing
> light so I can set the advance accurately. It's coming along, slowly, but
> that's okay, I'm in no big hurry, I just want it right as I plan on driving
> the wheels off of this car.
> Thanks again for any information you might pass along!
> Steven Kingsbury
> Hopped Up BN1
> _______________________________________________
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>
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<div dir=3D"auto">Ed Iskedarian cut the cam on my car 45 years ago. He call=
ed it a hot street cam. I lost the info about it years ago.=C2=A0<br><br><d=
iv data-smartmail=3D"gmail_signature">Ira Erbs<br>Portland, OR<br>typos and=
artifacts are the fault of my phone</div></div><br><div class=3D"gmail_quo=
te"><div dir=3D"ltr" class=3D"gmail_attr">On Thu, Aug 22, 2019, 9:56 PM WIL=
LIAM B LAWRENCE <<a href=3D"mailto:ynotink@msn.com";>ynotink@msn.com</a>&=
gt; wrote:<br></div><blockquote class=3D"gmail_quote" style=3D"margin:0 0 0=
.8ex;border-left:1px #ccc solid;padding-left:1ex">
<div dir=3D"ltr">
<div style=3D"font-family:Calibri,Helvetica,sans-serif;font-size:12pt;color=
:rgb(0,0,0)">
A high lift cam means that the valves come off the seat earlier and land ba=
ck on the seat later than standard. That limits the valve's dwell time =
on the seat, which is critical to heat transfer from the valve to the seat.=
Greater clearance is the compromise
to extend valve life. Isky specifies 0.018" for my cam. If you know t=
he source of the cam I would go back to them for the spec.</div>
<div style=3D"font-family:Calibri,Helvetica,sans-serif;font-size:12pt;color=
:rgb(0,0,0)">
<br>
</div>
<div style=3D"font-family:Calibri,Helvetica,sans-serif;font-size:12pt;color=
:rgb(0,0,0)">
I have the OA6, OA7, and OA8 needles and have tried them all. I found that,=
at least at this altitude (5,000-6,000 feet), the standard OA7s give the b=
est results.</div>
<div style=3D"font-family:Calibri,Helvetica,sans-serif;font-size:12pt;color=
:rgb(0,0,0)">
<br>
</div>
<div style=3D"font-family:Calibri,Helvetica,sans-serif;font-size:12pt;color=
:rgb(0,0,0)">
Bill Lawrence</div>
<div style=3D"font-family:Calibri,Helvetica,sans-serif;font-size:12pt;color=
:rgb(0,0,0)">
BN1 #554</div>
<div id=3D"m_1452382738263015681appendonsend"></div>
<hr style=3D"display:inline-block;width:98%">
<div id=3D"m_1452382738263015681divRplyFwdMsg" dir=3D"ltr"><font face=3D"Ca=
libri, sans-serif" style=3D"font-size:11pt" color=3D"#000000"><b>From:</b> =
Healeys <<a href=3D"mailto:healeys-bounces@autox.team.net"; target=3D"_bl=
ank" rel=3D"noreferrer">healeys-bounces@autox.team.net</a>> on behalf of=
Steven Kingsbury via Healeys <<a href=3D"mailto:healeys@autox.team.net"=
target=3D"_blank" rel=3D"noreferrer">healeys@autox.team.net</a>><br>
<b>Sent:</b> Thursday, August 22, 2019 1:56 AM<br>
<b>To:</b> <a href=3D"mailto:healeys@autox.team.net"; target=3D"_blank" rel=
=3D"noreferrer">healeys@autox.team.net</a> <<a href=3D"mailto:healeys@au=
tox.team.net" target=3D"_blank" rel=3D"noreferrer">healeys@autox.team.net</=
a>><br>
<b>Subject:</b> [Healeys] Valve Clearances for an M</font>
<div>=C2=A0</div>
</div>
<div>
<div>OK folks, I know the setting for valve clearances on a 100 is 0.012, b=
ut when a hotter cam gets put in to a 100 with larger carbs and different p=
istons, does it stay 0.012? I am going to check all of the clearances on th=
e set up as it sits now before I
do any adjusting of anything, but thought I would run this by everyone bef=
ore I touch or move anything. Thanks in advance.</div>
<div>=C2=A0=C2=A0=C2=A0And just as an update, I got the OA6 Rich needles in=
now, I brought both jets up in the carbs evenly and then let them back dow=
n 12 flats each, so I've now got a base line to work with. I am re-inst=
alling the alternator conversion that was Mickey Moused
into position with the Moss/AH Spares kit, which is quite nice nice and th=
en I also just got a Snap On timing light so I can set the advance accurate=
ly. It's coming along, slowly, but that's okay, I'm in no big h=
urry, I just want it right as I plan on driving
the wheels off of this car.</div>
<div>=C2=A0=C2=A0=C2=A0Thanks again for any information you might pass alon=
g!</div>
<div>Steven Kingsbury=C2=A0</div>
<div>Hopped Up BN1=C2=A0 =C2=A0=C2=A0</div>
</div>
</div>
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