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Thanks Dave and Jeff.=C2=A0=C2=A0I think that while the vent line may be pa=
rtially blocked, it is sufficiently open to pass vapor and fuel.=C2=A0 I th=
ink that Jeff may have hit on the problem being the anit-run on valve.=C2=
=A0 =C2=A0I was working on the fuel system, I think that I have inadvertent=
ly knocked a couple of connections off of the oil pressure sending unit.=C2=
=A0 My gauge registers oil pressure properly, and that wire was not disconn=
ected.=C2=A0 However, if I put the two wires back on one way, the oil press=
ure warning light comes on and stays on.=C2=A0 This is clearly wrong, so I =
reversed the wires.=C2=A0 I cannot tell if the anti-run on valve is now wor=
king properly.=C2=A0 I did note that when one of=C2=A0 the wires accidently=
touched the oil pressure wire, I saw a spark and clearly heard a click at =
the anti-run on valve solenoid.=C2=A0 However, when I connected the wire to=
the other post on the sending unit, I could not hear a click when cranking=
or shutting down the engine.=C2=A0 I have looked through my Haynes manual,=
but don't see a diagnostic procedure and the only wiring diagram I have is=
for a RHD PI unit.=C2=A0 Mine is LHD carbureted.=C2=A0 Any advice as to ho=
w to verify the correct wiring for the anti-run on valve?David
-----Original Message-----
From: DAVID MASSEY <dave1massey@cs.com>
To: fishplate@gmail.com <fishplate@gmail.com>; davgil@aol.com <davgil@aol.c=
om>
Cc: triumphs@autox.team.net <triumphs@autox.team.net>
Sent: Fri, Jul 30, 2021 7:36 am
Subject: Re: [TR] TR 6 evaporative system
It could be many things.=C2=A0 I had an issue like this but the engine die=
d after a few minutes.=C2=A0 When I opened the gas filler there was a great=
rush of air and the tank oil-canned.=C2=A0 My problem turned out to be the=
vinyl hose leading from the trunk area to the engine bar had sagged down a=
nd contacted the exhaust system and melted shut.
Make sure your system is per design and not missing something.=C2=A0 There =
is typically a liquid/vapor separator near the tank.=C2=A0 If that was bypa=
ssed you will get liquid fuel where it shouldn't be.
=20
Dave=20
=20
=20
-----Original Message-----
From: Jeff Scarbrough <fishplate@gmail.com>
To: davgil@aol.com
Cc: triumphs@autox.team.net <triumphs@autox.team.net>
Sent: Thu, Jul 29, 2021 7:20 pm
Subject: Re: [TR] TR 6 evaporative system
Is the switch/valve on the bottom of the carbon canister operating correctl=
y?
Jeff Scarbrough
Corrosion Acres, Ga.
On Wed, Jul 28, 2021 at 3:04 PM <davgil@aol.com> wrote:
>
> I just replaced the fuel tank in my 1976 TR6 and after a short drive, I n=
oticed a leak coming from the vent connection on top of the tank.=C2=A0 I t=
ightened the nut on the connection, but don't really understand why there w=
ould be gas in the vent line.=C2=A0 I also noticed that when I opened the f=
uel cap, there was a hiss like a suction.=C2=A0 I feel that either the vent=
line, which seems open when I blow air through it from the cannister attac=
hment or the carb bowls (ZS 175s) may be too full and there is a vacuum tha=
t is pulling fuel out of the bowls.=C2=A0 My TR6 does run rich.=C2=A0 I don=
't understand why there would be a vacuum in the tank.=C2=A0 Also, I notice=
d a bit of oil around the oil fill cap which I have never seen before.=C2=
=A0 I checked the oil and the level seems correct.=C2=A0 I thought I smelle=
d a bit of gas in it, but that may have been a bit of imagination on my par=
t.=C2=A0 Any suggestions would be appreciated.
> Regards,
> David Gill
> 1976 TR6
> ** triumphs@autox.team.net **
>
> Donate: http://www.team.net/donate.html
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sey@cs.com
------=_Part_1008099_1748326044.1627746680058
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<div style=3D"color:black;font: 10pt arial;">Thanks Dave and Jeff. &nb=
sp;
<div>I think that while the vent line may be partially blocked, it is suffi=
ciently open to pass vapor and fuel. I think that Jeff may have hit o=
n the problem being the anit-run on valve. I was working on the=
fuel system, I think that I have inadvertently knocked a couple of connect=
ions off of the oil pressure sending unit. My gauge registers oil pre=
ssure properly, and that wire was not disconnected. However, if I put=
the two wires back on one way, the oil pressure warning light comes on and=
stays on. This is clearly wrong, so I reversed the wires. I ca=
nnot tell if the anti-run on valve is now working properly. I did not=
e that when one of the wires accidently touched the oil pressure wire=
, I saw a spark and clearly heard a click at the anti-run on valve solenoid=
. However, when I connected the wire to the other post on the sending=
unit, I could not hear a click when cranking or shutting down the engine.&=
nbsp; I have looked through my Haynes manual, but don't see a diagnostic pr=
ocedure and the only wiring diagram I have is for a RHD PI unit. Mine=
is LHD carbureted. Any advice as to how to verify the correct wiring=
for the anti-run on valve?</div>
<div>David<br>
<br>
<br>
<div style=3D"font-family:arial,helvetica;font-size:10pt;color:black"><font=
size=3D"2">-----Original Message-----<br>
From: DAVID MASSEY <dave1massey@cs.com><br>
To: fishplate@gmail.com <fishplate@gmail.com>; davgil@aol.com <dav=
gil@aol.com><br>
Cc: triumphs@autox.team.net <triumphs@autox.team.net><br>
Sent: Fri, Jul 30, 2021 7:36 am<br>
Subject: Re: [TR] TR 6 evaporative system<br>
<br>
<div id=3D"yiv8020502626">
<div>
<div style=3D"color:black;font:12pt Arial, Helvetica, sans-serif;">
<div> <font size=3D"3">It could be many things. I had an issue like t=
his but the engine died after a few minutes. When I opened the gas fi=
ller there was a great rush of air and the tank oil-canned. My proble=
m turned out to be the vinyl hose leading from the trunk area to the engine=
bar had sagged down and contacted the exhaust system and melted shut.</fon=
t></div>
<div><font size=3D"3"><br clear=3D"none">
</font></div>
<div><font size=3D"3">Make sure your system is per design and not missing s=
omething. There is typically a liquid/vapor separator near the tank.&=
nbsp; If that was bypassed you will get liquid fuel where it shouldn't be.<=
/font><br clear=3D"none">
</div>
<div> <br clear=3D"none">
</div>
<div style=3D"clear:both;"><font size=3D"4">Dave </font><br clear=3D"none">
<br clear=3D"none">
</div>
<div> <br clear=3D"none">
</div>
<div> <br clear=3D"none">
</div>
<div style=3D"font-family:arial, helvetica;font-size:10pt;color:black;"><fo=
nt size=3D"2">-----Original Message-----<br clear=3D"none">
From: Jeff Scarbrough <fishplate@gmail.com><br clear=3D"none">
To: davgil@aol.com<br clear=3D"none">
Cc: triumphs@autox.team.net <triumphs@autox.team.net><br clear=3D"non=
e">
Sent: Thu, Jul 29, 2021 7:20 pm<br clear=3D"none">
Subject: Re: [TR] TR 6 evaporative system<br clear=3D"none">
<br clear=3D"none">
</font>
<div dir=3D"ltr">Is the switch/valve on the bottom of the carbon canister o=
perating correctly?<br clear=3D"none">
</div>
<div dir=3D"ltr"><br clear=3D"none">
</div>
<div dir=3D"ltr">Jeff Scarbrough<br clear=3D"none">
</div>
<div dir=3D"ltr">Corrosion Acres, Ga.<br clear=3D"none">
</div>
<div dir=3D"ltr"><br clear=3D"none">
</div>
<div dir=3D"ltr">On Wed, Jul 28, 2021 at 3:04 PM <<a rel=3D"nofollow noo=
pener noreferrer" shape=3D"rect" ymailto=3D"mailto:davgil@aol.com"; target=
=3D"_blank" href=3D"mailto:davgil@aol.com";>davgil@aol.com</a>> wrote:<br=
clear=3D"none">
</div>
<div dir=3D"ltr">><br clear=3D"none">
</div>
<div dir=3D"ltr">> I just replaced the fuel tank in my 1976 TR6 and afte=
r a short drive, I noticed a leak coming from the vent connection on top of=
the tank. I tightened the nut on the connection, but don't really un=
derstand why there would be gas in the vent line. I also noticed that=
when I opened the fuel cap, there was a hiss like a suction. I feel =
that either the vent line, which seems open when I blow air through it from=
the cannister attachment or the carb bowls (ZS 175s) may be too full and t=
here is a vacuum that is pulling fuel out of the bowls. My TR6 does r=
un rich. I don't understand why there would be a vacuum in the tank.&=
nbsp; Also, I noticed a bit of oil around the oil fill cap which I have nev=
er seen before. I checked the oil and the level seems correct. =
I thought I smelled a bit of gas in it, but that may have been a bit of ima=
gination on my part. Any suggestions would be appreciated.<br clear=
=3D"none">
</div>
<div dir=3D"ltr">> Regards,<br clear=3D"none">
</div>
<div dir=3D"ltr">> David Gill<br clear=3D"none">
</div>
<div dir=3D"ltr">> 1976 TR6<br clear=3D"none">
</div>
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