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Tym
The stock Tiger engine and fuel system is an open system; which means it ca=
n vent fuel vapors.
I had a smelly garage recently but I think it was mostly from the several d=
ays of 90 degree heat. I also had a mechanical connection that was very s=
lowly weeping some fuel; I only saw a fuel stain
Unfortunately, Tigers have many connection points and every one of them nee=
ds to be carefully examined.
Mechanical connections for any signs of weeping fuel stain
Rubber connections for cracked rubber =E2=80=93 rubber hoses sometimes need=
to be removed to see if they are internally cracked
Steel tubing connections need to be checked for weeping fuel
Steel tubing should have a bubble flare at any rubber hose connection
Rubber hose clamps could be loose or not working correctly as in not enough=
clamping force
Steel tubing should be captured at various points along the body =E2=80=93 =
vibrations can cause a stress fracture in the tube, you should see a fuel s=
tain at the fracture point
Hope this helps and good luck
Ron Fraser
From: Tigers <tigers-bounces@autox.team.net> On Behalf Of Theo Smit
Sent: Wednesday, September 03, 2025 2:22 PM
To: Dr. T. Y. McDowell <tym2@comcast.net>
Cc: Tiger's List <tigers@autox.team.net>
Subject: Re: [Tigers] Conundrum!
At some point I replaced the crossover vapor hose, partially because I foun=
d that the PO had drilled a hole in it while installing the lift-the-dot st=
uds.
There must still be another source of leakage because that fix did not comp=
letely fix the smell in the trunk. This winter I hope to get in there and c=
hange the sender gasket.
Theo
On Sep 3, 2025, at 8:12=E2=80=AFAM, Dr. T. Y. McDowell via Tigers <tigers@a=
=EF=BB=BF
Tigers,
I went out into the garage the other day. The smell of gasoline was overpo=
wering!
I emptied the three cars and let the garage clear. I put the Tiger back in=
the garage first and closed the garage doors. Twenty minutes later the sm=
ell of gas was evident.
There are no leaks, puddles, etc. I checked everything. I started the car=
and let it warm up - nothing seems to be wrong!
Ideas would be appreciated.
Tym McDowell
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</o:shapelayout></xml><![endif]--></head><body lang=3DEN-US link=3D"#0563C1=
" vlink=3D"#954F72"><div class=3DWordSection1><p class=3DMsoNormal>Tym<o:p>=
</o:p></p><p class=3DMsoNormal><o:p> </o:p></p><p class=3DMsoNormal>Th=
e stock Tiger engine and fuel system is an open system; which means it can =
vent fuel vapors.<o:p></o:p></p><p class=3DMsoNormal><o:p> </o:p></p><=
p class=3DMsoNormal>I had a smelly garage recently but I think it was mostl=
y from the several days of 90 degree heat.=C2=A0=C2=A0 I also had a mechani=
cal connection that was very slowly weeping some fuel; I only saw a fuel st=
ain<o:p></o:p></p><p class=3DMsoNormal><o:p> </o:p></p><p class=3DMsoN=
ormal>Unfortunately, Tigers have many connection points and every one of th=
em needs to be carefully examined.<o:p></o:p></p><p class=3DMsoNormal><o:p>=
</o:p></p><p class=3DMsoNormal>Mechanical connections for any signs o=
f weeping fuel stain<o:p></o:p></p><p class=3DMsoNormal>Rubber connections =
for cracked rubber =E2=80=93 rubber hoses sometimes need to be removed to s=
ee if they are internally cracked<o:p></o:p></p><p class=3DMsoNormal>Steel =
tubing connections need to be checked for weeping fuel<o:p></o:p></p><p cla=
ss=3DMsoNormal>Steel tubing should have a bubble flare at any rubber hose c=
onnection<o:p></o:p></p><p class=3DMsoNormal>Rubber hose clamps could be lo=
ose or not working correctly as in not enough clamping force<o:p></o:p></p>=
<p class=3DMsoNormal>Steel tubing should be captured at various points alon=
g the body =E2=80=93 vibrations can cause a stress fracture in the tube, yo=
u should see a fuel stain at the fracture point<o:p></o:p></p><p class=3DMs=
oNormal><o:p> </o:p></p><p class=3DMsoNormal>Hope this helps and good =
luck<o:p></o:p></p><p class=3DMsoNormal>Ron Fraser<o:p></o:p></p><p class=
=3DMsoNormal><o:p> </o:p></p><p class=3DMsoNormal> <o:p></o:p></p><p c=
lass=3DMsoNormal><o:p> </o:p></p><p class=3DMsoNormal><o:p> </o:p=
></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> Tigers <tigers-boun=
ces@autox.team.net> <b>On Behalf Of </b>Theo Smit<br><b>Sent:</b> Wednes=
day, September 03, 2025 2:22 PM<br><b>To:</b> Dr. T. Y. McDowell <tym2@c=
omcast.net><br><b>Cc:</b> Tiger's List <tigers@autox.team.net><br>=
<b>Subject:</b> Re: [Tigers] Conundrum!<o:p></o:p></p></div></div><p class=
=3DMsoNormal><o:p> </o:p></p><div><p class=3DMsoNormal>At some point I=
replaced the crossover vapor hose, partially because I found that the PO h=
ad drilled a hole in it while installing the lift-the-dot studs. <o:p>=
</o:p></p></div><div><p class=3DMsoNormal><o:p> </o:p></p></div><div><=
p class=3DMsoNormal>There must still be another source of leakage because t=
hat fix did not completely fix the smell in the trunk. This winter I hope t=
o get in there and change the sender gasket. <o:p></o:p></p></div><div=
><p class=3DMsoNormal><o:p> </o:p></p></div><div><p class=3DMsoNormal>=
Theo<o:p></o:p></p></div><div><p class=3DMsoNormal><br><br><o:p></o:p></p><=
blockquote style=3D'margin-top:5.0pt;margin-bottom:5.0pt'><p class=3DMsoNor=
mal style=3D'margin-bottom:12.0pt'>On Sep 3, 2025, at 8:12=E2=80=AFAM, Dr. =
T. Y. McDowell via Tigers <<a href=3D"mailto:tigers@autox.team.net";>tige=
rs@autox.team.net</a>> wrote:<o:p></o:p></p></blockquote></div><blockquo=
te style=3D'margin-top:5.0pt;margin-bottom:5.0pt'><div><p class=3DMsoNormal=
>=EF=BB=BF <o:p></o:p></p><div><p class=3DMsoNormal><span style=3D'font-siz=
e:12.0pt;font-family:"Helvetica",sans-serif;color:#333333'>Tigers, <o:p></o=
:p></span></p></div><div><p class=3DMsoNormal><span style=3D'font-size:12.0=
pt;font-family:"Helvetica",sans-serif;color:#333333'> <o:p></o:p></sp=
an></p></div><div><p class=3DMsoNormal><span style=3D'font-size:12.0pt;font=
-family:"Helvetica",sans-serif;color:#333333'>I went out into the garage th=
e other day. The smell of gasoline was overpowering! <o:p></o:p></spa=
n></p></div><div><p class=3DMsoNormal><span style=3D'font-size:12.0pt;font-=
family:"Helvetica",sans-serif;color:#333333'>I emptied the three cars and l=
et the garage clear. I put the Tiger back in the garage first and clo=
sed the garage doors. Twenty minutes later the smell of gas was evide=
nt. <o:p></o:p></span></p></div><div><p class=3DMsoNormal><span style=3D'fo=
nt-size:12.0pt;font-family:"Helvetica",sans-serif;color:#333333'> <o:=
p></o:p></span></p></div><div><p class=3DMsoNormal><span style=3D'font-size=
:12.0pt;font-family:"Helvetica",sans-serif;color:#333333'>There are no leak=
s, puddles, etc. I checked everything. I started the car and le=
t it warm up - nothing seems to be wrong! <o:p></o:p></span></p></div><div>=
<p class=3DMsoNormal><span style=3D'font-size:12.0pt;font-family:"Helvetica=
",sans-serif;color:#333333'> <o:p></o:p></span></p></div><div><p clas=
s=3DMsoNormal><span style=3D'font-size:12.0pt;font-family:"Helvetica",sans-=
serif;color:#333333'>Ideas would be appreciated. <o:p></o:p></span></p></di=
v><div><p class=3DMsoNormal><span style=3D'font-size:12.0pt;font-family:"He=
lvetica",sans-serif;color:#333333'> <o:p></o:p></span></p></div><div>=
<p class=3DMsoNormal><span style=3D'font-size:12.0pt;font-family:"Helvetica=
",sans-serif;color:#333333'>Tym McDowell <o:p></o:p></span></p></div><p cla=
ss=3DMsoNormal style=3D'margin-bottom:12.0pt'>_____________________________=
__________________<br><br><a href=3D"mailto:tigers@autox.team.net";>tigers@a=
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