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Mike, if your BGT is like mine the fuel pump has to lift the fuel up over
the rear axle before it reaches the pump. The area over the axle is like a
box and the exhaust heat accumulates in that area so with methanol laced
fuel it probably gets hot enough to boil the fuel causing the classic
"vapour lock".
Move to Canada where it is nice and cool so you won't have such issues :-)
M
On Sun, Jan 10, 2021 at 4:40 PM Michael MacLean <rrengineer.mike@att.net>
wrote:
> Not a Healey, but my 69 MGB GT is related in operation. I went to
> In N Out for lunch today in my MG. The line was very long so I had to inch
> forward and was stopped numerous times for a few minutes in between. The
> fuel pump started pumping furiously like I was running out of gas while
> stopped halfway through the line. The car was still running. I got up to
> the first window to pay and the idle dropped to less than 500 rpm. In a
> minute or so later the engine just quit. There is over a half tank of gas
> in the car. I tried starting it several times, but it would just fire and
> die. After several attempts the car started again, all the while the fuel
> pump was going like mad. After getting out of the line the fuel pump
> slowed down like normal and you did not hear it after what I assume was a
> full float bowl. No issues going home the 4 or 5 miles. Does that sound
> like my fuel pump is going out or the tank pickup is clogged? It has been
> doing this "empty tank like" pumping fast for a while, but the car has run
> normal up to now.
> Mike MacLean
>
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<div dir=3D"ltr"><div class=3D"gmail_default" style=3D"font-family:comic sa=
ns ms,sans-serif;font-size:small">Mike, if your BGT is like mine the fuel p=
ump has to lift the fuel up over the rear axle before it reaches the pump. =
The area over the axle is like a box and the exhaust heat accumulates in th=
at area so with methanol laced fuel it probably gets hot enough to boil the=
fuel causing the classic "vapour lock". <br></div><div class=3D"=
gmail_default" style=3D"font-family:comic sans ms,sans-serif;font-size:smal=
l">Move to Canada where it is nice and cool so you won't have such issu=
es :-)</div><div class=3D"gmail_default" style=3D"font-family:comic sans ms=
,sans-serif;font-size:small"><br></div><div class=3D"gmail_default" style=
=3D"font-family:comic sans ms,sans-serif;font-size:small">M<br></div></div>=
<br><div class=3D"gmail_quote"><div dir=3D"ltr" class=3D"gmail_attr">On Sun=
, Jan 10, 2021 at 4:40 PM Michael MacLean <<a href=3D"mailto:rrengineer.=
mike@att.net">rrengineer.mike@att.net</a>> wrote:<br></div><blockquote c=
lass=3D"gmail_quote" style=3D"margin:0px 0px 0px 0.8ex;border-left:1px soli=
d rgb(204,204,204);padding-left:1ex"><div><div style=3D"font-family:times n=
ew roman,new york,times,serif;font-size:16px"><div dir=3D"ltr"><div><div di=
r=3D"ltr"><span>=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 Not a Healey, but my 69 MGB =
GT is related in operation.=C2=A0 I went to In N Out for lunch today in my =
MG.=C2=A0 The line was very long so I had to=20
inch forward and was stopped numerous times for a few minutes in=20
between.=C2=A0 The fuel pump started pumping furiously like I was
running out of gas while stopped halfway through the line.=C2=A0 The car w=
as
still running.=C2=A0 I got up to the first window to pay and the idle=20
dropped to less than 500 rpm.=C2=A0 In a minute or so later the engine just=
=20
quit.=C2=A0 There is over a half tank of gas in the car.=C2=A0 I tried star=
ting it
several times, but it would just fire and die.=C2=A0 After several attempt=
s=20
the car started again, all the while the fuel pump was going like mad.=C2=
=A0=20
After getting out of the line the fuel pump slowed down like normal and=20
you did not hear it after what I assume was a full float bowl.=C2=A0 No=20
issues going home the 4 or 5 miles.=C2=A0 Does that sound like my fuel pump=
=20
is going out or the tank pickup is clogged?=C2=A0 It has been doing this &q=
uot;empty tank like" pumping fast for a while, but the car has run nor=
mal up to now.<br></span></div><span>Mike MacLean</span></div><div><br></di=
v></div></div></div>_______________________________________________<br>
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</blockquote></div>
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