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Steven
Our BN2 has =E2=80=9CM=E2=80=9D mods using a different cam grind then the f=
actory M grind (Delta Cams) and 10:1 compression. The stock head compressio=
n chamber was cleaned up a bit and the ports slightly smoothed. I had to fi=
nd the right carb needles to make the rev range smoother and to provide con=
sistent performance. Took a bit of trail and error. Also had to play with t=
he static timing but did not have to re curve the distributor. I run a few =
more degrees than stock but that has a lot to due with the cam grind. Susp=
ect that if the spark plugs fire at 0 RPM to 2500 and from 3200 up, its pro=
bably not a plug or distributor problem. The variable is the control of fue=
l and the mentioned potential problem areas (needles, damper springs and oi=
l in the pots) have a lot to due with controlling the mixture.=20
Perry
Sent from Mail for Windows 10
From: i erbs
Sent: Saturday, August 10, 2019 8:26 PM
To: Steven Kingsbury
Cc: Ahealey help
Subject: Re: [Healeys] Four cylinder woes
Distributor advance or vaccum leak issues.=C2=A0
Ira Erbs
Portland, OR
typos and artifacts are the fault of my phone
On Sat, Aug 10, 2019, 2:04 PM Steven Kingsbury via Healeys <healeys@autox.t=
eam.net> wrote:
To start off, my car, an early BN1, #598 was burned up in the Paradise fire=
and I just bought another BN1 to replace it. The new car has been hot rodd=
ed up a bit. Cam, bigger carbs and different pistons so it has a way differ=
ent compression ratio and has been in this configuration for over ten years=
I believe. Was told it runs like the wind and came from a reliable and tru=
st worthy person. Well I'm having problems with the car. Up to 2500 RPM, it=
runs great! When I can get it up to 3200 RPM it runs great again, it's the=
2500 to 3200 range where I'm having problems.
=C2=A0=C2=A0=C2=A0It feels like it's starving for fuel, or it has too much =
fuel, it hesitates, feels like it's not running on all cylinders, and gener=
ally like a bucking bronco, but then at 3200 or so, she smooths right out a=
nd flies!
=C2=A0=C2=A0=C2=A0I was told the carbs were set up a little rich. I leaned =
them out one flat at a time and no difference until they got too lean and w=
ouldn't run well at all. So I took them back to original setting positions.=
=C2=A0
=C2=A0=C2=A0=C2=A0I've checked all gaps, they're all right. Pulled plugs wh=
en getting home and they are all fine, a little brown and all even looking.=
New condenser, new coil, changed to new plugs, I have not checked the timi=
ng yet, but with the way it runs below 2500 and above 3000, it seems to be =
just fine.
=C2=A0=C2=A0=C2=A0I am getting the car up in the air Monday as I have new t=
ires to replace the old ones and will do a static timing check at that time=
. My old four cylinder was a breeze to set up and ran smooth through all re=
vs. What am I missing with an engine set up like an M? Why would things go =
south between 2500 and 3000 and run fine below and above?
=C2=A0=C2=A0=C2=A0All suggestions are welcome and I do have a new fuel pump=
on order, so fire away. I've been doing things one step at a time to not i=
ntroduce new problems, but this is the only problem that is consistent.
=C2=A0=C2=A0=C2=A0Thanks,
Steven Kingsbury
_______________________________________________
Archive: http://www.team.net/pipermail/healeys http://autox.team.net/archiv=
e
Healeys@autox.team.net
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--></style></head><body lang=3DEN-US link=3Dblue vlink=3D"#954F72"><div cla=
ss=3DWordSection1><p class=3DMsoNormal>Steven</p><p class=3DMsoNormal>Our B=
N2 has =E2=80=9CM=E2=80=9D mods using a different cam grind then the factor=
y M grind (Delta Cams) and 10:1 compression. The stock head compression cha=
mber was cleaned up a bit and the ports slightly smoothed. I had to find th=
e right carb needles to make the rev range smoother and to provide consiste=
nt performance. Took a bit of trail and error. Also had to play with the st=
atic timing but did not have to re curve the distributor. I run a few more =
degrees than stock but that has a lot to due with the cam grind. =C2=A0Susp=
ect that if the spark plugs fire at 0 RPM to 2500 and from 3200 up, its pro=
bably not a plug or distributor problem. The variable is the control of fue=
l and the mentioned potential problem areas (needles, damper springs and oi=
l in the pots) have a lot to due with controlling the mixture. </p><p class=
=3DMsoNormal>Perry</p><p class=3DMsoNormal><o:p> </o:p></p><p class=3D=
MsoNormal>Sent from <a href=3D"https://go.microsoft.com/fwlink/?LinkId=3D55=
0986">Mail</a> for Windows 10</p><p class=3DMsoNormal><o:p> </o:p></p>=
<div style=3D'mso-element:para-border-div;border:none;border-top:solid #E1E=
1E1 1.0pt;padding:3.0pt 0in 0in 0in'><p class=3DMsoNormal style=3D'border:n=
one;padding:0in'><b>From: </b><a href=3D"mailto:eyera3000@gmail.com";>i erbs=
</a><br><b>Sent: </b>Saturday, August 10, 2019 8:26 PM<br><b>To: </b><a hre=
f=3D"mailto:airtightproductions@icloud.com";>Steven Kingsbury</a><br><b>Cc: =
</b><a href=3D"mailto:healeys@autox.team.net";>Ahealey help</a><br><b>Subjec=
t: </b>Re: [Healeys] Four cylinder woes</p></div><p class=3DMsoNormal><o:p>=
</o:p></p><div><p class=3DMsoNormal style=3D'margin-bottom:12.0pt'>Di=
stributor advance or vaccum leak issues. </p><div><p class=3DMsoNormal=
>Ira Erbs<br>Portland, OR<br>typos and artifacts are the fault of my phone<=
/p></div></div><p class=3DMsoNormal><o:p> </o:p></p><div><div><p class=
=3DMsoNormal>On Sat, Aug 10, 2019, 2:04 PM Steven Kingsbury via Healeys <=
;<a href=3D"mailto:healeys@autox.team.net";>healeys@autox.team.net</a>> w=
rote:</p></div><blockquote style=3D'border:none;border-left:solid #CCCCCC 1=
.0pt;padding:0in 0in 0in 6.0pt;margin-left:4.8pt;margin-right:0in'><div><di=
v><p class=3DMsoNormal>To start off, my car, an early BN1, #598 was burned =
up in the Paradise fire and I just bought another BN1 to replace it. The ne=
w car has been hot rodded up a bit. Cam, bigger carbs and different pistons=
so it has a way different compression ratio and has been in this configura=
tion for over ten years I believe. Was told it runs like the wind and came =
from a reliable and trust worthy person. Well I'm having problems with the =
car. Up to 2500 RPM, it runs great! When I can get it up to 3200 RPM it run=
s great again, it's the 2500 to 3200 range where I'm having problems.</p></=
div><div><p class=3DMsoNormal> It feels like it's starving=
for fuel, or it has too much fuel, it hesitates, feels like it's not runni=
ng on all cylinders, and generally like a bucking bronco, but then at 3200 =
or so, she smooths right out and flies!</p></div><div><p class=3DMsoNormal>=
I was told the carbs were set up a little rich. I leaned =
them out one flat at a time and no difference until they got too lean and w=
ouldn't run well at all. So I took them back to original setting positions.=
</p></div><div><p class=3DMsoNormal> I've checked al=
l gaps, they're all right. Pulled plugs when getting home and they are all =
fine, a little brown and all even looking. New condenser, new coil, changed=
to new plugs, I have not checked the timing yet, but with the way it runs =
below 2500 and above 3000, it seems to be just fine.</p></div><div><p class=
=3DMsoNormal> I am getting the car up in the air Monday as=
I have new tires to replace the old ones and will do a static timing check=
at that time. My old four cylinder was a breeze to set up and ran smooth t=
hrough all revs. What am I missing with an engine set up like an M? Why wou=
ld things go south between 2500 and 3000 and run fine below and above?</p><=
/div><div><p class=3DMsoNormal> All suggestions are welcom=
e and I do have a new fuel pump on order, so fire away. I've been doing thi=
ngs one step at a time to not introduce new problems, but this is the only =
problem that is consistent.</p></div><div><p class=3DMsoNormal> =
Thanks,</p></div><div><p class=3DMsoNormal>Steven Kingsbury</p></div>=
<div><p class=3DMsoNormal><o:p> </o:p></p></div></div></blockquote></d=
iv><p class=3DMsoNormal style=3D'mso-margin-top-alt:0in;margin-right:0in;ma=
rgin-bottom:12.0pt;margin-left:4.8pt'>_____________________________________=
__________<br>Support Team.Net <a href=3D"http://www.team.net/donate.html"; =
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