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My BJ8 was rebuilt 2 summers ago with 20 over on the cylinders. For =
break in I would drive the car at 40 to 50 mph on the Tamiami Trail with =
few stops for 40 miles. I had the speedo rebuilt for the next 500 miles =
and moved the needle to 60 mph. During these first trips, the fuel =
consumption was 12 mpg approximately. When I left Florida, I checked =
the fuel consumption, and it was between 14/15 mpg US Gallon with 2500 =
miles on the speedo. In owning this vehicle for 40 years never got much =
over 15 mpg on long trips. Nevertheless, will continue to watch the =
consumption next winter. Oh by the way, I use unleaded and no pinging.
=20
Bob Begani
=20
From: Healeys <healeys-bounces@autox.team.net> On Behalf Of David Nock =
via Healeys
Sent: Sunday, July 3, 2022 1:59 PM
To: llennep@verizon.net
Cc: healeys@autox.team.net
Subject: Re: [Healeys] fuel consumption
=20
If your fuel problem started after the engine rebuild, there is a =
problem in the rebuild. A new engine may get a little lower fuel mileage =
at first but after the first hundred miles or so the engine is what it =
is going to be.
=20
I would recommend checking the ignition timing, carb needles, float =
levels, and valve adjustments. If you increased the compression 10:1 =
then there may be the reason.=20
=20
I would double check the cam timing. It is very easy to set wrong, and =
can be compensated for by advancing the timing. But you will have =
limited power and poor fuel economy.
=20
David Nock
British Car Specialists
=20
=20
On Jul 3, 2022, at 9:51 AM, llennep--- via Healeys =
=20
Thanks Bob. Useful info.
=20
Sent: Sun, Jul 3, 2022 11:17 am
Subject: Re: [Healeys] fuel consumption
A friend and I used to take a long road trip--up to 5,000 miles--in my =
BJ8 every year for over 20 years. He checked our mileage at every fuel =
stop--useful if your gas gauge goes on the fritz--and I checked the =
odometer against the roadside markers (it was spot on). Through three =
engines the mileage stayed very nearly the same: 15MPUSG in stop-and-go =
city driving, best I got was 25 on 'slow' (55MPH), flat highway driving =
(eastern Oregon, when the troopers used to enforce it) and at freeway =
speeds (70-75MPH) I got around 18. When I went from the 3.9 rear end to =
a 3.54 I expected a mileage 'bonus,' but at most I got a tenth or two =
better MPG.
29.6 miles per USG is extraordinary; these conversations come around =
every few years and no on ever claimed much more than I was getting.=20
On 7/2/2022 8:48 PM, m.g.sharp@sympatico.ca =
Hi listers, As you might recall, I just had the engine rebuilt on my =
BT7 last year. I only have 670 miles on it so far. My fuel consumption =
seems exceptionally high. I have just checked on one fill up, and need =
to repeat to be more certain, but on the last tank I got an awful 10.1 =
miles to the Imperial Gallon (14.8 miles/US gal). I used to get about =
double that.
I have checked the tune on the carbs using the usual method and checked =
it with a quick plug check (I have yet to do a proper plug chop), and =
if anything I think I am running a bit on the lean side. The exhaust =
seems good, just rich when the choke is on, however the engine does =
=E2=80=9Chunt=E2=80=9D a little when at idle. It runs beautifully =
otherwise. No fuel leaks at all.
=20
My questions: 1) what are others getting for fuel consumption? And 2) =
any thoughts on how to improve it?
=20
Thank all - Mirek
=20
_______________________________________________
Archive: http://www.team.net/pipermail/healeys =
http://autox.team.net/archive/healeys
http://autox.team.net/mailman/listinfo/healeys
http://autox.team.net/mailman/options/healeys/llennep@verizon.net
_______________________________________________
Support <http://team.net/> Team.Net <http://www.team.net/donate.html> =
Archive: <http://www.team.net/pipermail/healeys> =
http://www.team.net/pipermail/healeys =
<http://autox.team.net/archive/healeys> =
http://autox.team.net/archive/healeys
<http://autox.team.net/mailman/listinfo/healeys> =
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<http://autox.team.net/mailman/options/healeys/healeydoc@sbcglobal.net> =
http://autox.team.net/mailman/options/healeys/healeydoc@sbcglobal.net
=20
David Nock
British Car Specialists
Stockton Ca (209) 948-8767
Specializing in parts, repairs and the restorations on all British Cars =
since 1957
www.britishcarspecialists.com <http://www.britishcarspecialists.com>=20
=20
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vlink=3Dpurple style=3D'word-wrap:break-word'><div =
class=3DWordSection1><p class=3DMsoNormal><span =
style=3D'font-size:16.0pt;font-family:"Arial",sans-serif'>My BJ8 was =
rebuilt 2 summers ago with 20 over on the cylinders. For break in I =
would drive the car at 40 to 50 mph on the Tamiami Trail with few stops =
for 40 miles.=C2=A0 I had the speedo rebuilt for the next 500 miles and =
moved the needle to 60 mph.=C2=A0 During these first trips, the fuel =
consumption was 12 mpg approximately. =C2=A0When I left Florida, I =
checked the fuel consumption, and it was between 14/15 mpg US Gallon =
with 2500 miles on the speedo.=C2=A0 In owning this vehicle for 40 years =
never got much over 15 mpg on long trips.=C2=A0=C2=A0 Nevertheless, will =
continue to watch the consumption next winter.=C2=A0 Oh by the way, I =
use unleaded and no pinging.<o:p></o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'font-size:16.0pt;font-family:"Arial",sans-serif'><o:p> </o:=
p></span></p><p class=3DMsoNormal><span =
style=3D'font-size:16.0pt;font-family:"Arial",sans-serif'>Bob =
Begani<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'font-size:16.0pt;font-family:"Arial",sans-serif'><o:p> </o:=
p></span></p><div><div style=3D'border:none;border-top:solid #E1E1E1 =
1.0pt;padding:3.0pt 0in 0in 0in'><p class=3DMsoNormal><b>From:</b> =
Healeys <healeys-bounces@autox.team.net> <b>On Behalf Of </b>David =
Nock via Healeys<br><b>Sent:</b> Sunday, July 3, 2022 1:59 =
PM<br><b>To:</b> llennep@verizon.net<br><b>Cc:</b> =
healeys@autox.team.net<br><b>Subject:</b> Re: [Healeys] fuel =
consumption<o:p></o:p></p></div></div><p =
class=3DMsoNormal><o:p> </o:p></p><p class=3DMsoNormal>If your fuel =
problem started after the engine rebuild, there is a problem in the =
rebuild. A new engine may get a little lower fuel mileage at first but =
after the first hundred miles or so the engine is what it is going to =
be.<o:p></o:p></p><div><p =
class=3DMsoNormal><o:p> </o:p></p></div><div><p class=3DMsoNormal>I =
would recommend checking the ignition timing, carb needles, float =
levels, and valve adjustments. If you increased the compression 10:1 =
then there may be the reason. <o:p></o:p></p></div><div><p =
class=3DMsoNormal><o:p> </o:p></p></div><div><p class=3DMsoNormal>I =
would double check the cam timing. It is very easy to set wrong, and can =
be compensated for by advancing the timing. But you will have limited =
power and poor fuel economy.<o:p></o:p></p></div><div><p =
class=3DMsoNormal><o:p> </o:p></p></div><div><p =
class=3DMsoNormal>David Nock<o:p></o:p></p></div><div><p =
class=3DMsoNormal>British Car Specialists<o:p></o:p></p></div><div><p =
class=3DMsoNormal><o:p> </o:p></p></div><div><p =
class=3DMsoNormal><o:p> </o:p></p><div><p =
class=3DMsoNormal><br><br><o:p></o:p></p><blockquote =
style=3D'margin-top:5.0pt;margin-bottom:5.0pt'><div><p =
class=3DMsoNormal>On Jul 3, 2022, at 9:51 AM, llennep--- via Healeys =
<<a =
href=3D"mailto:healeys@autox.team.net";>healeys@autox.team.net</a>> =
wrote:<o:p></o:p></p></div><p =
class=3DMsoNormal><o:p> </o:p></p><div><div><p =
class=3DMsoNormal><span =
style=3D'font-size:10.0pt;font-family:"Arial",sans-serif'>Thanks Bob. =
Useful info.<o:p></o:p></span></p><div><p class=3DMsoNormal><span =
style=3D'font-size:10.0pt;font-family:"Arial",sans-serif'><o:p> </o:=
p></span></p><div><p class=3DMsoNormal =
style=3D'margin-bottom:12.0pt'><span =
style=3D'font-size:10.0pt;font-family:"Helvetica",sans-serif'>Sent: Sun, =
Jul 3, 2022 11:17 am<br>Subject: Re: [Healeys] fuel =
consumption<o:p></o:p></span></p><div id=3Dyiv4316669477><div><p =
class=3DMsoNormal style=3D'margin-bottom:12.0pt'><span =
style=3D'font-size:10.0pt;font-family:"Helvetica",sans-serif'>A friend =
and I used to take a long road trip--up to 5,000 miles--in my BJ8 every =
year for over 20 years. He checked our mileage at every fuel =
stop--useful if your gas gauge goes on the fritz--and I checked the =
odometer against the roadside markers (it was spot on). Through three =
engines the mileage stayed very nearly the same: 15MPUSG in stop-and-go =
city driving, best I got was 25 on 'slow' (55MPH), flat highway driving =
(eastern Oregon, when the troopers used to enforce it) and at freeway =
speeds (70-75MPH) I got around 18. When I went from the 3.9 rear =
end to a 3.54 I expected a mileage 'bonus,' but at most I got a tenth or =
two better MPG.<br><br>29.6 miles per USG is extraordinary; these =
conversations come around every few years and no on ever claimed much =
more than I was getting.<span =
class=3Dapple-converted-space> </span><br><br><o:p></o:p></span></p>=
<div id=3Dyiv4316669477yqt64688><div><p class=3DMsoNormal><span =
style=3D'font-size:10.0pt;font-family:"Helvetica",sans-serif'>On =
7/2/2022 8:48 PM,<span class=3Dapple-converted-space> </span><a =
href=3D"mailto:m.g.sharp@sympatico.ca"; =
target=3D"_blank">m.g.sharp@sympatico.ca</a><span =
class=3Dapple-converted-space> </span>wrote:<o:p></o:p></span></p></=
div></div></div><div id=3Dyiv4316669477yqt30426><div><div><div><p =
class=3DMsoNormal>Hi listers, As you might recall, I just had the =
engine rebuilt on my BT7 last year. I only have 670 miles on it so =
far. My fuel consumption seems exceptionally high. I have =
just checked on one fill up, and need to repeat to be more certain, but =
on the last tank I got an awful 10.1 miles to the Imperial Gallon (14.8 =
miles/US gal). I used to get about double that.<br><br>I have =
checked the tune on the carbs using the usual method and checked it with =
a quick plug check (I have yet to do a proper plug chop), and if =
anything I think I am running a bit on the lean side. The exhaust =
seems good, just rich when the choke is on, however the engine does =
=E2=80=9Chunt=E2=80=9D a little when at idle. It runs beautifully =
otherwise. No fuel leaks at all.<o:p></o:p></p></div><div><p =
class=3DMsoNormal> <o:p></o:p></p></div><div><p =
class=3DMsoNormal>My questions: 1) what are others getting for =
fuel consumption? And 2) any thoughts on how to improve =
it?<o:p></o:p></p></div><div><p =
class=3DMsoNormal> <o:p></o:p></p></div><div><p =
class=3DMsoNormal>Thank all - Mirek<o:p></o:p></p></div></div><p =
class=3DMsoNormal style=3D'margin-bottom:12.0pt'><span =
style=3D'font-size:10.0pt;font-family:"Helvetica",sans-serif'><o:p> =
</o:p></span></p></div></div></div><div id=3Dyqt27198><p =
class=3DMsoNormal style=3D'margin-bottom:12.0pt'><span =
style=3D'font-size:10.0pt;font-family:"Helvetica",sans-serif'>___________=
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<p class=3DMsoNormal><o:p> </o:p></p><div><div><p class=3DMsoNormal =
style=3D'margin-bottom:12.0pt'><span =
style=3D'font-size:9.0pt;font-family:"Helvetica",sans-serif;color:black'>=
David Nock<br>British Car Specialists<br>Stockton Ca (209) =
948-8767<br>Specializing in parts, repairs and the restorations on =
all British Cars since 1957<br><br><a =
href=3D"http://www.britishcarspecialists.com";>www.britishcarspecialists.c=
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