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introduced to supress interference with car radios, which I don=E2=80=99t =
have.
they do and the cars next to you at a red light will get interference
Ira Erbs
Milwaukie,OR
_______ _______
(______ \____1959 BN4____/ _______)
(_________________________)
BT7 engine and disk brakes
1967 MGB [image: MG]
A racing car is an animal with a thousand adjustments. Mario Andretti
Please excuse random auto corrects and misspelled words
On Sun, Mar 19, 2023 at 5:19=E2=80=AFAM m.g.sharp--- via Healeys <
healeys@autox.team.net> wrote:
> I do exactly what Bob does with my BT7 except I use a non-resistor plug =
=E2=80=93
> Champion N12YC and 0.028=E2=80=9D gap. I too use a Lucas Sports coil. I=
always
> thought the resistor plugs were to introduced to supress interference wit=
h
> car radios, which I don=E2=80=99t have, but I am happy to be corrected on=
that. I
> think plugs are unnecessarily changed too frequently. I remove them once
> in a while (every few years) and clean and check the gaps. I run them
> until they shows signs of deterioration. I have never had a plug fail me
> in the Healey.
>
>
>
> Mirek
>
>
>
> *From:* Healeys <healeys-bounces@autox.team.net> *On Behalf Of *Bob
> Spidell
> *Sent:* March 18, 2023 2:17 PM
> *To:* healeys@autox.team.net
> *Subject:* Re: [Healeys] Plugs
>
>
>
> I've run over 150K miles on Champion plugs with nary an issue (and will
> continue to do so); RN12YC for the BJ8 and whatever the recommended is fo=
r
> a 100M (RN10C?). With Pertronix Ignitors in both, I run slightly over
> 'book' value (0.025") at 0.028" and both run very well (I also run strand=
ed
> copper wire secondaries, so the 'R' is important, plus the plug caps have=
a
> resistor in them as well). My one-time auto shop teacher father maintaine=
d
> whatever spark was sufficient to ignite the mixture was adequate--mixture
> and compression took it from there--but a larger gap induces a 'hotter'
> spark which may be beneficial with leaner mixtures and at higher engine R=
PM
> (but has less margin as the electrode erodes). A larger gap requires the
> coil to produce more secondary voltage to jump the gap; a sports coil may
> be required to produce a consistent spark. 12K miles on plugs is fine in =
my
> experience--as long as the engine is in good nick--and they can be cleane=
d
> and re-gapped at least once. Sandblasting is a no-no as it will pit the
> ceramic insulator and can cause issues.
>
> I came across a YouTube video by David Vizard where he claims E3 Diamond
> 'Split Fire' plugs produced slightly better mileage; yep, E3 makes a plug
> for Big Healeys (6-cyl only, I think). I've heard rumors that counterfeit
> NGK plugs are in the market.
>
>
> On 3/18/2023 9:49 AM, Simon Lachlan via Healeys wrote:
>
> Here=E2=80=99s a can of worms that we haven=E2=80=99t delved into for a w=
hile=E2=80=A6.
>
> So, I=E2=80=99m trying to get all my ducks in a row for a short run abroa=
d. Car is
> a MkII BT7 with a DW fast road cam, 3 HD6s, big bore 6 branch and
> 123Ignition plus a so-called Sports Coil.
>
>
>
> 1. I was looking through my library of files on Healey topics and saw
> that we were all over the place on plug gaps=E2=80=A6..all the way up =
to 0.035=E2=80=9D. So
> what=E2=80=99s the opinion there??
> 2. And which plug? Seemed to be mostly between NGK=E2=80=99s BP6ES & B=
P5ES.
> Was a hold-out for their B8EGV 5627 but that was dismissed fairly
> vigorously by Jeremy Welch as being way OTT for normal road use.
> 3. And, I have 12,000 miles+++ as plug replacement mileage so long as
> they still look and perform OK. Any thoughts?
>
>
>
> Thanks, Simon
>
>
>
>
> _______________________________________________
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>
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>
>
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<div dir=3D"ltr">=C2=A0introduced to supress interference with car radios, =
which I don=E2=80=99t have. they do and the cars next to you at a red light=
will get interference<br clear=3D"all"><div><div dir=3D"ltr" class=3D"gmai=
l_signature" data-smartmail=3D"gmail_signature"><div dir=3D"ltr"><div><div =
dir=3D"ltr"><div><div dir=3D"ltr"><div><div dir=3D"ltr"><div><div dir=3D"lt=
r"><div><div dir=3D"ltr"><div><div dir=3D"ltr"><div dir=3D"ltr">Ira Erbs<di=
v>Milwaukie,OR</div><div><span style=3D"font-family:'Times New Roman=
9;,serif">=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_______</span><br style=3D"font-family:'Times New Roman',=
serif"><span style=3D"font-family:'Times New Roman',serif">=C2=A0 =
=C2=A0=C2=A0 (______ \____1959 BN4____/ _______)</span><br style=3D"font-fa=
mily:'Times New Roman',serif"><span style=3D"font-family:'Times=
New Roman',serif">=C2=A0 =C2=A0 =C2=A0 =C2=A0=C2=A0 (_________________=
________)</span></div><div>=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 BT7 engine an=
d disk brakes</div><div><br></div><div><br></div><div>1967 MGB =C2=A0<img s=
rc=3D"http://www.britishcarspecialists.com/assets/images/MG_emblem.jpg"; alt=
=3D"MG"></div><div><br></div><div><span style=3D"color:rgb(51,51,51);font-f=
amily:"Helvetica Neue",Helvetica,Arial,sans-serif;font-size:14px"=
>A racing car is an animal with a thousand adjustments. Mario Andretti</spa=
n><br></div><div>Please excuse random auto corrects and misspelled words</d=
iv></div></div></div></div></div></div></div></div></div></div></div></div>=
</div></div></div></div><br></div><br><div class=3D"gmail_quote"><div dir=
=3D"ltr" class=3D"gmail_attr">On Sun, Mar 19, 2023 at 5:19=E2=80=AFAM m.g.s=
harp--- via Healeys <<a href=3D"mailto:healeys@autox.team.net";>healeys@a=
utox.team.net</a>> wrote:<br></div><blockquote class=3D"gmail_quote" sty=
le=3D"margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);paddi=
ng-left:1ex"><div class=3D"msg-3326828798158193674"><div lang=3D"EN-CA" sty=
le=3D"overflow-wrap: break-word;"><div class=3D"m_-3326828798158193674WordS=
ection1"><p class=3D"MsoNormal">I do exactly what Bob does with my BT7 exce=
pt I use a non-resistor plug =E2=80=93 Champion N12YC and 0.028=E2=80=9D ga=
p.=C2=A0 I too use a Lucas Sports coil.=C2=A0 I always thought the resistor=
plugs were to introduced to supress interference with car radios, which I =
don=E2=80=99t have, but I am happy to be corrected on that.=C2=A0 =C2=A0I t=
hink plugs are unnecessarily changed too frequently.=C2=A0 I remove them on=
ce in a while (every few years) and clean and check the gaps.=C2=A0 I run t=
hem until they shows signs of deterioration.=C2=A0 I have never had a plug =
fail me in the Healey.<u></u><u></u></p><p class=3D"MsoNormal"><u></u>=C2=
=A0<u></u></p><p class=3D"MsoNormal">Mirek<u></u><u></u></p><p class=3D"Mso=
Normal"><u></u>=C2=A0<u></u></p><div><div style=3D"border-right:none;border=
-bottom:none;border-left:none;border-top:1pt solid rgb(225,225,225);padding=
:3pt 0cm 0cm"><p class=3D"MsoNormal"><b><span lang=3D"EN-US">From:</span></=
b><span lang=3D"EN-US"> Healeys <<a href=3D"mailto:healeys-bounces@autox=
.team.net" target=3D"_blank">healeys-bounces@autox.team.net</a>> <b>On B=
ehalf Of </b>Bob Spidell<br><b>Sent:</b> March 18, 2023 2:17 PM<br><b>To:</=
b> <a href=3D"mailto:healeys@autox.team.net"; target=3D"_blank">healeys@auto=
x.team.net</a><br><b>Subject:</b> Re: [Healeys] Plugs<u></u><u></u></span><=
/p></div></div><p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p><p class=3D"M=
soNormal" style=3D"margin-bottom:12pt">I've run over 150K miles on Cham=
pion plugs with nary an issue (and will continue to do so); RN12YC for the =
BJ8 and whatever the recommended is for a 100M (RN10C?). With Pertronix Ign=
itors in both, I run slightly over 'book' value (0.025") at 0.=
028" and both run very well (I also run stranded copper wire secondari=
es, so the 'R' is important, plus the plug caps have a resistor in =
them as well). My one-time auto shop teacher father maintained whatever spa=
rk was sufficient to ignite the mixture was adequate--mixture and compressi=
on took it from there--but a larger gap induces a 'hotter' spark wh=
ich may be beneficial with leaner mixtures and at higher engine RPM (but ha=
s less margin as the electrode erodes). A larger gap requires the coil to p=
roduce more secondary voltage to jump the gap; a sports coil may be require=
d to produce a consistent spark. 12K miles on plugs is fine in my experienc=
e--as long as the engine is in good nick--and they can be cleaned and re-ga=
pped at least once. Sandblasting is a no-no as it will pit the ceramic insu=
lator and can cause issues. <br><br>I came across a YouTube video by David =
Vizard where he claims E3 Diamond 'Split Fire' plugs produced sligh=
tly better mileage; yep, E3 makes a plug for Big Healeys (6-cyl only, I thi=
nk). I've heard rumors that counterfeit NGK plugs are in the market.<br=
><br><br><span><u></u><u></u></span></p><div><p class=3D"MsoNormal">On 3/18=
/2023 9:49 AM, Simon Lachlan via Healeys wrote:<u></u><u></u></p></div><blo=
ckquote style=3D"margin-top:5pt;margin-bottom:5pt"><p class=3D"MsoNormal"><=
span style=3D"font-size:12pt;font-family:"Times New Roman ,serif"=
,serif">Here=E2=80=99s a can of worms that we haven=E2=80=99t delved into f=
or a while=E2=80=A6.</span><u></u><u></u></p><p class=3D"MsoNormal"><span s=
tyle=3D"font-size:12pt;font-family:"Times New Roman ,serif",serif=
">So, I=E2=80=99m trying to get all my ducks in a row for a short run abroa=
d. Car is a MkII BT7 with a DW fast road cam, 3 HD6s, big bore 6 branch and=
123Ignition plus a so-called Sports Coil.</span><u></u><u></u></p><p class=
=3D"MsoNormal"><span style=3D"font-size:12pt;font-family:"Times New Ro=
man ,serif",serif">=C2=A0</span><u></u><u></u></p><ol style=3D"margin-=
top:0cm" start=3D"1" type=3D"1"><li class=3D"m_-3326828798158193674MsoListP=
aragraph" style=3D"margin-left:0cm"><span style=3D"font-size:12pt;font-fami=
ly:"Times New Roman ,serif",serif">I was looking through my libra=
ry of files on Healey topics and saw that we were all over the place on plu=
g gaps=E2=80=A6..all the way up to 0.035=E2=80=9D. So what=E2=80=99s the op=
inion there??</span><u></u><u></u></li><li class=3D"m_-3326828798158193674M=
soListParagraph" style=3D"margin-left:0cm"><span style=3D"font-size:12pt;fo=
nt-family:"Times New Roman ,serif",serif">And which plug? Seemed =
to be mostly between NGK=E2=80=99s BP6ES & BP5ES. Was a hold-out for th=
eir B8EGV 5627</span><span style=3D"font-size:12pt">=C2=A0 but that</span><=
span style=3D"font-size:12pt;font-family:"Times New Roman ,serif"=
,serif"> was dismissed fairly vigorously by Jeremy Welch as being way OTT f=
or normal road use.</span><u></u><u></u></li><li class=3D"m_-33268287981581=
93674MsoListParagraph" style=3D"margin-left:0cm"><span style=3D"font-size:1=
2pt;font-family:"Times New Roman ,serif",serif">And, I have 12,00=
0 miles+++ as plug replacement mileage so long as they still look and perfo=
rm OK. Any thoughts?</span><u></u><u></u></li></ol><p class=3D"m_-332682879=
8158193674MsoListParagraph"><span style=3D"font-size:12pt;font-family:"=
;Times New Roman ,serif",serif">=C2=A0</span><u></u><u></u></p><p clas=
s=3D"m_-3326828798158193674MsoListParagraph"><span style=3D"font-size:12pt;=
font-family:"Times New Roman ,serif",serif">Thanks, Simon</span><=
u></u><u></u></p><p class=3D"MsoNormal"><span><u></u>=C2=A0<u></u></span></=
p></blockquote><p class=3D"MsoNormal"><span><u></u>=C2=A0<u></u></span></p>=
</div></div>_______________________________________________<br>
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Archive: <a href=3D"http://www.team.net/pipermail/healeys"; rel=3D"noreferre=
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_______________________________________________
Archive: http://www.team.net/pipermail/healeys
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