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Thanks Bob. =C2=A0Useful info.
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--u=
seful if your gas gauge goes on the fritz--and I checked the odometer again=
st 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 g=
ot 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.=C2=A0 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.
=20
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
=20
=20
On 7/2/2022 8:48 PM, m.g.sharp@sympatico.ca wrote:
=20
=20
_filtered {} _filtered {}#yiv4316669477 p.yiv4316669477MsoNormal, #yiv4316=
669477 li.yiv4316669477MsoNormal, #yiv4316669477 div.yiv4316669477MsoNormal=
{margin:0cm;font-size:11.0pt;font-family:"Calibri", sans-serif;}#yiv431666=
9477 span.yiv4316669477EmailStyle17 {font-family:"Calibri", sans-serif;colo=
r:windowtext;}#yiv4316669477 .yiv4316669477MsoChpDefault {font-family:"Cali=
bri", sans-serif;}#yiv4316669477 div.yiv4316669477WordSection1 {} Hi lister=
s,=C2=A0 As you might recall, I just had the engine rebuilt on my BT7 last =
year.=C2=A0 I only have 670 miles on it so far.=C2=A0 My fuel consumption s=
eems exceptionally high.=C2=A0 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 mil=
es to the Imperial Gallon (14.8 miles/US gal).=C2=A0 I used to get about do=
uble that.
=20
I have checked the tune on the carbs using the usual method and checked it=
with a quick plug check (I have yet=C2=A0 to do a proper plug chop), and i=
f anything I think I am running a bit on the lean side.=C2=A0 The exhaust s=
eems good, just rich when the choke is on, however the engine does =E2=80=
=9Chunt=E2=80=9D a little when at idle.=C2=A0 It runs beautifully otherwise=
.=C2=A0 No fuel leaks at all. =C2=A0 My questions:=C2=A0 1) what are other=
s getting for fuel consumption? And 2) any thoughts on how to improve it? =
=C2=A0 Thank all - Mirek =20
=20
_______________________________________________
Archive: http://www.team.net/pipermail/healeys http://autox.team.net/archiv=
e/healeys
Healeys@autox.team.net
http://autox.team.net/mailman/listinfo/healeys
erizon.net
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<div style=3D"color:black;font: 10pt Arial, Helvetica, sans-serif;">Thanks =
Bob. Useful info.
<div><br>
<div style=3D"font-family:helvetica,arial;font-size:10pt;color:black"><font=
size=3D"2">Sent: Sun, Jul 3, 2022 11:17 am<br>
Subject: Re: [Healeys] fuel consumption<br>
<br>
<div id=3D"yiv4316669477">
<div>
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 clear=3D"none">
<br clear=3D"none">
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.
<br clear=3D"none">
<br clear=3D"none">
<br clear=3D"none">
=20
<div id=3D"yiv4316669477yqt64688" class=3D"yiv4316669477yqt4486129123">
<div class=3D"yiv4316669477moz-cite-prefix">On 7/2/2022 8:48 PM,
<a rel=3D"nofollow noopener noreferrer" shape=3D"rect" ymailto=3D"mai=
lto:m.g.sharp@sympatico.ca" target=3D"_blank" href=3D"mailto:m.g.sharp@symp=
atico.ca" class=3D"yiv4316669477moz-txt-link-abbreviated">m.g.sharp@sympati=
co.ca</a> wrote:<br clear=3D"none">
</div>
<blockquote type=3D"cite">
</blockquote></div>
</div>
<div id=3D"yiv4316669477yqt30426" class=3D"yiv4316669477yqt4486129123"><sty=
le> _filtered {} _filtered {}#yiv4316669477 p.yiv4316669477MsoNormal, #yiv4=
316669477 li.yiv4316669477MsoNormal, #yiv4316669477 div.yiv4316669477MsoNor=
mal
=09{margin:0cm;font-size:11.0pt;font-family:"Calibri", sans-serif;}#yiv4316=
669477 span.yiv4316669477EmailStyle17
=09{font-family:"Calibri", sans-serif;color:windowtext;}#yiv4316669477 .yiv=
4316669477MsoChpDefault
=09{font-family:"Calibri", sans-serif;}#yiv4316669477 div.yiv4316669477Word=
Section1
=09{}</style>
<div>
<div class=3D"yiv4316669477WordSection1">
=20
<div class=3D"yiv4316669477MsoNormal">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 repea=
t
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 clear=3D"none">
<br clear=3D"none">
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 th=
e
choke is on, however the engine does =E2=80=9Chunt=E2=80=9D a lit=
tle when at
idle. It runs beautifully otherwise. No fuel leaks at=
all.</div>
=20
=20
<div class=3D"yiv4316669477MsoNormal"> </div>
=20
=20
<div class=3D"yiv4316669477MsoNormal">My questions: 1) what are other=
s getting
for fuel consumption? And 2) any thoughts on how to improve
it?</div>
=20
=20
<div class=3D"yiv4316669477MsoNormal"> </div>
=20
=20
<div class=3D"yiv4316669477MsoNormal">Thank all - Mirek</div>
=20
</div>
<br clear=3D"none">
=20
<br clear=3D"none">
</div>
</div>
</div>
<div class=3D"yqt4486129123" id=3D"yqt27198">______________________________=
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_______________________________________________
Archive: http://www.team.net/pipermail/healeys
http://autox.team.net/archive/healeys
Healeys@autox.team.net
http://autox.team.net/mailman/listinfo/healeys
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