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Sorry, I am out here. This guy wants to play till the engine is shot.
=20
=20
=20
-----Original-Nachricht-----
Betreff: RE: [Healeys] Spark plug gap
Datum: 2023-05-04T12:45:37+0200
Von: "simon.lachlan@alexarevel.plus.com"=20
<simon.lachlan@alexarevel.plus.com>
An: "josef-eckert@t-online.de" <josef-eckert@t-online.de>
=20
=20
=20
Thanks for that. I=E2=80=99ll certainly bear it in mind. Likewise, I=E2=80=
=99ll keep a=20
close eye on my engine=E2=80=99s temperature. The latter is quite well prot=
ected=20
with a modern rad, all the correct baffles, 5 blade fan plus electronic=20
fan. But, as I said, I=E2=80=99ll keep an eye on it.
Someone mentioned that he used =E2=80=9CIridium=E2=80=9D plugs from NGK. I =
googled=20
them=E2=80=A6.horribly expensive. Can they be worth it in our old cars?
Simon
=20
From: josef-eckert@t-online.de <josef-eckert@t-online.de>
Sent: 04 May 2023 07:06
To: simon.lachlan@alexarevel.plus.com; Healey, Forum=20
<healeys@autox.team.net>
Subject: AW: [Healeys] Spark plug gap
=20
For me, i prefer Champion plugs plugs to NGK, but that=C2=B4s a matter of t=
aste.=20
I think both, Champion and NGK, are of similar quality. Matter of taste, as=
=20
I wrote. But NOT the car manufacturer determines the plug gap, its the plug=
=20
manufacturer. Definitely the car manufacturer takes this for his specs in=
=20
the workshop manual.
There is to much hype about plugs anyway. I am working as a professional,=
=20
Elecrtonics and Elecrtrcian engineer, at a big classic car parts supplier=
=20
here in Europe and I never go away from the given plug gap as set by the=20
plug manufacturer. Austin-Healey engines are not high tech, they are=20
tractor engines and can take a lot of misfit, but anyway BMC knew at the=20
time what=C2=B4s best to do with them, even its printed 60 or 70 years ago.
Some people try to adjust the fuel mixture with a CO-tester. You can do=20
that, but it doesn=C2=B4t give best results for road use, especially in hot=
ter=20
climates and high above sea level.
When you are very good in engine engineering and have all the tools you can=
=20
try to find some more horsepower in your engine, but you always pay that=20
with some more heat produced, which is not at all good for our old BMC=20
engines.
=20
Josef
=20
=20
=20
-----Original-Nachricht-----
Betreff: RE: [Healeys] Spark plug gap
Datum: 2023-05-04T00:06:58+0200
Von: "simon.lachlan@alexarevel.plus.com
simon.lachlan@alexarevel.plus.com
=20
=20
=20
You may be right. Not sure.
Actually I thought that the gap was determined by the car=E2=80=99s manufac=
turer ie=20
one could expect to find the same plug in two different cars and to find=20
that the recommended gap was not the same for each car.
Likewise, the BMC manual suggests Champion plugs at 0.024=E2=80=9D to 0.026=
=E2=80=9D and=20
that was some 60+ years ago. I=E2=80=99ve always been told that Champion pl=
ugs=20
aren=E2=80=99t the best in the world and I=E2=80=99m sure that a modern NGK=
can stand a=20
little more heat than the Champions that were around 60 years ago.
Anyhow, I=E2=80=99ll keep an eye on them. I=E2=80=99m a pretty tame driver =
so there won=E2=80=99t=20
be undue stress under the bonnet.
Simon
=20
Sent: 03 May 2023 20:56
To: simon.lachlan@alexarevel.plus.com
Subject: AW: [Healeys] Spark plug gap
=20
Spark plugs are designed and tested to be used with the gap given by the=20
producer of the spark plug.
When you widen the gap the plug gets hotter as it is designed for and the=
=20
electrode can melt or wear very fast.
Its a very short win you gain modifying them.
I never understand why people think they are better engineers and know=20
better than the designers of the system they use.
=20
Josef
=20
=20
=20
=20
-----Original-Nachricht-----
Betreff: [Healeys] Spark plug gap
Datum: 2023-05-03T21:39:57+0200
Von: "Simon Lachlan via Healeys" <healeys@autox.team.net
=20
=20
=20
I run my MkII BT7 on NGK BP6ES which were recommended by some of the wise=
=20
ones on this list.
The car has a =E2=80=9CSports=E2=80=9D coil and a 123Ignition distributor. =
DW fast road=20
cam=E2=80=A6etc
Now, talking of =E2=80=9Crecommended=E2=80=9D, the rolling road guys told m=
e to set the=20
plugs at 0.028=E2=80=9D and pooh-poohed anything bigger when I suggested th=
at I=E2=80=99d=20
heard of much greater gaps with my approximate setup.
So, I went with 0.028.
The other day, I decided to experiment and set my spare set at 0.032=E2=80=
=9D. Same=20
NGKs, no mileage on them..decent plugs. Anyhow, it made a very surprising=
=20
difference. All round performance is much enhanced.
Despite it=E2=80=99s 3:54 diff and 28% OD, it was never sluggish on our loc=
al=20
hills. But now it fairly zooms up them.
To be frank, all a bit of a surprise.
Not boasting=E2=80=A6just putting that out there in case anyone else is thi=
nking of=20
going up a few thou=E2=80=A6..
When I asked about gaps a few years back, some of the suggestions were near=
=20
0.040=E2=80=9D. Surely that a bit much?
Simon
=20
=20
=EF=BB=BF
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<html><head><meta http-equiv=3D"Content-Type" content=3D"text/html; charset=
=3DUTF-8"/><title></title></head><body><p style=3D"margin: 0px;"><span styl=
e=3D"font-family:arial,helvetica,sans-serif;font-size:10pt;color:#000000;te=
xt-decoration:none">Sorry, I am out here. This guy wants to play till the e=
ngine is shot.<br /></span></p>
<p style=3D"margin: 0px;"><span style=3D"font-family:arial,helvetica,sans-s=
erif;font-size:10pt;color:#000000;text-decoration:none"> </span></p>
<p style=3D"margin: 0px;"> </p>
<p style=3D"margin: 0px;"> </p>
<p style=3D"margin: 0px;">-----Original-Nachricht-----</p>
<p style=3D"margin: 0px;">Betreff: RE: [Healeys] Spark plug gap</p>
<p style=3D"margin: 0px;">Datum: 2023-05-04T12:45:37+0200</p>
<p style=3D"margin: 0px;">Von: "simon.lachlan@alexarevel.plus.com" <simo=
n.lachlan@alexarevel.plus.com></p>
<p style=3D"margin: 0px;">An: "josef-eckert@t-online.de" <josef-eckert@t=
-online.de></p>
<p style=3D"margin: 0px;"> </p>
<p style=3D"margin: 0px;"> </p>
<p style=3D"margin: 0px;"> </p>
<div style=3D"position: relative; color: #000000; font: 12px Arial,Helvetic=
a,sans-serif;">
<div class=3D"WordSection1">
<p class=3D"MsoNormal"><span style=3D"mso-fareast-language: EN-US;">Thanks =
for that. I’ll certainly bear it in mind. Likewise, I’ll keep a=
close eye on my engine’s temperature. The latter is quite well prote=
cted with a modern rad, all the correct baffles, 5 blade fan plus electroni=
c fan. But, as I said, I’ll keep an eye on it.</span></p>
<p class=3D"MsoNormal"><span style=3D"mso-fareast-language: EN-US;">Someone=
mentioned that he used “Iridium” plugs from NGK. I googled the=
m….horribly expensive. Can they be worth it in our old cars?</span><=
/p>
<p class=3D"MsoNormal"><span style=3D"mso-fareast-language: EN-US;">Simon</=
span></p>
<p class=3D"MsoNormal"><span style=3D"mso-fareast-language: EN-US;"> <=
/span></p>
<div>
<div style=3D"border: none; border-top: solid #E1E1E1 1.0pt; padding: 3.0pt=
0cm 0cm 0cm;">
<p class=3D"MsoNormal"><strong><span lang=3D"EN-US">From:</span></strong><s=
pan lang=3D"EN-US"> josef-eckert@t-online.de <josef-eckert@t-online.de&g=
t; <br /><strong>Sent:</strong> 04 May 2023 07:06<br /><strong>To:</strong>=
simon.lachlan@alexarevel.plus.com; Healey, Forum <healeys@autox.team.ne=
t><br /><strong>Subject:</strong> AW: [Healeys] Spark plug gap</span></p=
>
</div>
</div>
<p class=3D"MsoNormal"> </p>
<p style=3D"margin: 0px;"><span style=3D"font-size: 10.0pt; font-family: 'A=
rial',sans-serif; color: black;">For me, i prefer Champion plugs plugs to N=
GK, but that´s a matter of taste. I think both, Champion and NGK, are=
of similar quality. Matter of taste, as I wrote. But NOT the car manufactu=
rer determines the plug gap, its the plug manufacturer. Definitely the car =
manufacturer takes this for his specs in the workshop manual.</span></p>
<p style=3D"margin: 0px;"><span style=3D"font-size: 10.0pt; font-family: 'A=
rial',sans-serif; color: black;">There is to much hype about plugs anyway. =
I am working as a professional, Elecrtonics and Elecrtrcian engineer, at a =
big classic car parts supplier here in Europe and I never go away from the =
given plug gap as set by the plug manufacturer. Austin-Healey engines =
are not high tech, they are tractor engines and can take a lot of misfit, =
but anyway BMC knew at the time what´s best to do with them, even its=
printed 60 or 70 years ago.</span></p>
<p style=3D"margin: 0px;"><span style=3D"font-size: 10.0pt; font-family: 'A=
rial',sans-serif; color: black;">Some people try to adjust the fuel mixture=
with a CO-tester. You can do that, but it doesn´t give best results =
for road use, especially in hotter climates and high above sea level. </spa=
n></p>
<p style=3D"margin: 0px;"><span style=3D"font-size: 10.0pt; font-family: 'A=
rial',sans-serif; color: black;">When you are very good in engine engineeri=
ng and have all the tools you can try to find some more horsepower in your =
engine, but you always pay that with some more heat produced, which is not =
at all good for our old BMC engines.</span></p>
<p style=3D"margin: 0px;"> </p>
<p style=3D"margin: 0px;"><span style=3D"font-size: 10.0pt; font-family: 'A=
rial',sans-serif; color: black;">Josef</span></p>
<p style=3D"margin: 0px;"><span style=3D"font-size: 10.0pt; font-family: 'A=
rial',sans-serif; color: black;"> </span></p>
<p style=3D"margin: 0px;"> </p>
<p style=3D"margin: 0px;"> </p>
<p style=3D"margin: 0px;">-----Original-Nachricht-----</p>
<p style=3D"margin: 0px;">Betreff: RE: [Healeys] Spark plug gap</p>
<p style=3D"margin: 0px;">Datum: 2023-05-04T00:06:58+0200</p>
<p style=3D"margin: 0px;">Von: "<a href=3D"mailto:simon.lachlan@alexarevel.=
plus.com">simon.lachlan@alexarevel.plus.com</a>" <<a href=3D"mailto:simo=
n.lachlan@alexarevel.plus.com">simon.lachlan@alexarevel.plus.com</a>></p=
>
<p style=3D"margin: 0px;">An: "<a href=3D"mailto:josef-eckert@t-online.de";>=
josef-eckert@t-online.de</a>" <<a href=3D"mailto:josef-eckert@t-online.d=
e">josef-eckert@t-online.de</a>></p>
<p style=3D"margin: 0px;"> </p>
<p style=3D"margin: 0px;"> </p>
<p style=3D"margin: 0px;"> </p>
<div>
<div>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt: auto; mso-margin-bottom=
-alt: auto;"><span style=3D"font-size: 9.0pt; font-family: 'Arial',sans-ser=
if; color: black; mso-fareast-language: EN-US;">You may be right. Not sure.=
</span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt: auto; mso-margin-bottom=
-alt: auto;"><span style=3D"font-size: 9.0pt; font-family: 'Arial',sans-ser=
if; color: black; mso-fareast-language: EN-US;">Actually I thought that the=
gap was determined by the car’s manufacturer ie one could expect to =
find the same plug in two different cars and to find that the recommended g=
ap was not the same for each car.</span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt: auto; mso-margin-bottom=
-alt: auto;"><span style=3D"font-size: 9.0pt; font-family: 'Arial',sans-ser=
if; color: black; mso-fareast-language: EN-US;">Likewise, the BMC manual su=
ggests Champion plugs at 0.024” to 0.026” and that was some 60+=
years ago. I’ve always been told that Champion plugs aren’t th=
e best in the world and I’m sure that a modern NGK can stand a little=
more heat than the Champions that were around 60 years ago.</span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt: auto; mso-margin-bottom=
-alt: auto;"><span style=3D"font-size: 9.0pt; font-family: 'Arial',sans-ser=
if; color: black; mso-fareast-language: EN-US;">Anyhow, I’ll keep an =
eye on them. I’m a pretty tame driver so there won’t be undue s=
tress under the bonnet.</span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt: auto; mso-margin-bottom=
-alt: auto;"><span style=3D"font-size: 9.0pt; font-family: 'Arial',sans-ser=
if; color: black; mso-fareast-language: EN-US;">Simon</span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt: auto; mso-margin-bottom=
-alt: auto;"><span style=3D"font-size: 9.0pt; font-family: 'Arial',sans-ser=
if; color: black; mso-fareast-language: EN-US;"> </span></p>
<div>
<div style=3D"border: none; border-top: solid #E1E1E1 1.0pt; padding: 3.0pt=
0cm 0cm 0cm;">
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt: auto; mso-margin-bottom=
-alt: auto;"><strong><span lang=3D"EN-US" style=3D"font-size: 9.0pt; font-f=
amily: 'Arial',sans-serif; color: black;">From:</span></strong><span lang=
=3D"EN-US" style=3D"font-size: 9.0pt; font-family: 'Arial',sans-serif; colo=
r: black;"> <a href=3D"mailto:josef-eckert@t-online.de";>josef-eckert@t-onli=
ne.de</a> <<a href=3D"mailto:josef-eckert@t-online.de";>josef-eckert@t-on=
line.de</a>> <br /><strong><span style=3D"font-family: 'Arial',sans-seri=
f;">Sent:</span></strong> 03 May 2023 20:56<br /><strong><span style=3D"fon=
t-family: 'Arial',sans-serif;">To:</span></strong> <a href=3D"mailto:simon.=
lachlan@alexarevel.plus.com">simon.lachlan@alexarevel.plus.com</a>; <a href=
=3D"mailto:healeys@autox.team.net";>healeys@autox.team.net</a><br /><strong>=
<span style=3D"font-family: 'Arial',sans-serif;">Subject:</span></strong> A=
W: [Healeys] Spark plug gap</span></p>
</div>
</div>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt: auto; mso-margin-bottom=
-alt: auto;"><span style=3D"font-size: 9.0pt; font-family: 'Arial',sans-ser=
if; color: black;"> </span></p>
<p style=3D"margin: 0px;"><span style=3D"font-size: 10.0pt; font-family: 'A=
rial',sans-serif; color: black;">Spark plugs are designed and tested to be =
used with the gap given by the producer of the spark plug.</span></p>
<p style=3D"margin: 0px;"><span style=3D"font-size: 10.0pt; font-family: 'A=
rial',sans-serif; color: black;">When you widen the gap the plug gets hotte=
r as it is designed for and the electrode can melt or wear very fast.</span=
></p>
<p style=3D"margin: 0px;"><span style=3D"font-size: 10.0pt; font-family: 'A=
rial',sans-serif; color: black;">Its a very short win you gain modifying th=
em.</span></p>
<p style=3D"margin: 0px;"><span style=3D"font-size: 10.0pt; font-family: 'A=
rial',sans-serif; color: black;">I never understand why people think they a=
re better engineers and know better than the designers of the system they u=
se.</span></p>
<p style=3D"margin: 0px;"><span style=3D"font-size: 9.0pt; font-family: 'Ar=
ial',sans-serif; color: black;"> </span></p>
<p style=3D"margin: 0px;"><span style=3D"font-size: 10.0pt; font-family: 'A=
rial',sans-serif; color: black;">Josef </span></p>
<p style=3D"margin: 0px;"><span style=3D"font-size: 9.0pt; font-family: 'Ar=
ial',sans-serif; color: black;"> </span></p>
<p style=3D"margin: 0px;"><span style=3D"font-size: 10.0pt; font-family: 'A=
rial',sans-serif; color: black;"> </span></p>
<p style=3D"margin: 0px;"><span style=3D"font-size: 9.0pt; font-family: 'Ar=
ial',sans-serif; color: black;"> </span></p>
<p style=3D"margin: 0px;"><span style=3D"font-size: 9.0pt; font-family: 'Ar=
ial',sans-serif; color: black;"> </span></p>
<p style=3D"margin: 0px;"><span style=3D"font-size: 9.0pt; font-family: 'Ar=
ial',sans-serif; color: black;">-----Original-Nachricht-----</span></p>
<p style=3D"margin: 0px;"><span style=3D"font-size: 9.0pt; font-family: 'Ar=
ial',sans-serif; color: black;">Betreff: [Healeys] Spark plug gap</span></p=
>
<p style=3D"margin: 0px;"><span style=3D"font-size: 9.0pt; font-family: 'Ar=
ial',sans-serif; color: black;">Datum: 2023-05-03T21:39:57+0200</span></p>
<p style=3D"margin: 0px;"><span style=3D"font-size: 9.0pt; font-family: 'Ar=
ial',sans-serif; color: black;">Von: "Simon Lachlan via Healeys" <<a hre=
f=3D"mailto:healeys@autox.team.net";>healeys@autox.team.net</a>></span></=
p>
<p style=3D"margin: 0px;"><span style=3D"font-size: 9.0pt; font-family: 'Ar=
ial',sans-serif; color: black;">An: "'Healeys'" <<a href=3D"mailto:heale=
ys@autox.team.net">healeys@autox.team.net</a>></span></p>
<p style=3D"margin: 0px;"><span style=3D"font-size: 9.0pt; font-family: 'Ar=
ial',sans-serif; color: black;"> </span></p>
<p style=3D"margin: 0px;"><span style=3D"font-size: 9.0pt; font-family: 'Ar=
ial',sans-serif; color: black;"> </span></p>
<p style=3D"margin: 0px;"><span style=3D"font-size: 9.0pt; font-family: 'Ar=
ial',sans-serif; color: black;"> </span></p>
<div>
<div>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt: auto; mso-margin-bottom=
-alt: auto;"><span style=3D"font-size: 9.0pt; font-family: 'Arial',sans-ser=
if; color: black;">I run my MkII BT7 on NGK BP6ES which were recommended by=
some of the wise ones on this list.</span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt: auto; mso-margin-bottom=
-alt: auto;"><span style=3D"font-size: 9.0pt; font-family: 'Arial',sans-ser=
if; color: black;">The car has a “Sports” coil and a 123Ignitio=
n distributor. DW fast road cam…etc</span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt: auto; mso-margin-bottom=
-alt: auto;"><span style=3D"font-size: 9.0pt; font-family: 'Arial',sans-ser=
if; color: black;">Now, talking of “recommended”, the rolling r=
oad guys told me to set the plugs at 0.028” and pooh-poohed anything =
bigger when I suggested that I’d heard of much greater gaps with my a=
pproximate setup.</span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt: auto; mso-margin-bottom=
-alt: auto;"><span style=3D"font-size: 9.0pt; font-family: 'Arial',sans-ser=
if; color: black;">So, I went with 0.028.</span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt: auto; mso-margin-bottom=
-alt: auto;"><span style=3D"font-size: 9.0pt; font-family: 'Arial',sans-ser=
if; color: black;">The other day, I decided to experiment and set my spare =
set at 0.032”. Same NGKs, no mileage on them..decent plugs. Anyhow, i=
t made a very surprising difference. All round performance is much enhanced=
.</span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt: auto; mso-margin-bottom=
-alt: auto;"><span style=3D"font-size: 9.0pt; font-family: 'Arial',sans-ser=
if; color: black;">Despite it’s 3:54 diff and 28% OD, it was never sl=
uggish on our local hills. But now it fairly zooms up them.</span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt: auto; mso-margin-bottom=
-alt: auto;"><span style=3D"font-size: 9.0pt; font-family: 'Arial',sans-ser=
if; color: black;">To be frank, all a bit of a surprise.</span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt: auto; mso-margin-bottom=
-alt: auto;"><span style=3D"font-size: 9.0pt; font-family: 'Arial',sans-ser=
if; color: black;">Not boasting…just putting that out there in case =
anyone else is thinking of going up a few thou…..</span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt: auto; mso-margin-bottom=
-alt: auto;"><span style=3D"font-size: 9.0pt; font-family: 'Arial',sans-ser=
if; color: black;">When I asked about gaps a few years back, some of the su=
ggestions were near 0.040”. Surely that a bit much?</span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt: auto; mso-margin-bottom=
-alt: auto;"><span style=3D"font-size: 9.0pt; font-family: 'Arial',sans-ser=
if; color: black;">Simon</span></p>
</div>
</div>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt: auto; mso-margin-bottom=
-alt: auto;"><span style=3D"font-size: 9.0pt; font-family: 'Arial',sans-ser=
if; color: black;"> </span></p>
</div>
</div>
<p class=3D"MsoNormal"> </p>
</div>
</div>=EF=BB=BF</body></html>
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_______________________________________________
Archive: http://www.team.net/pipermail/healeys
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http://autox.team.net/mailman/listinfo/healeys
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