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Worked on the carbs today, and this is what I learned.
The poor running was primarily due to a vacuum leak. This car is a 76 and h=
as had most of the emission items removed. There was a port on the intake m=
anifold that was probably blocked, but it was open causing the poor running=
. The enrichment valves were both missing gaskets. This fixed some gas leak=
on the side of the carbs. The lower port on the forward carb perhaps shoul=
d be blocked. I looked at a 74 TR6, and on that car this port connects to t=
o the vacuum advance on the distributor.
________________________________
From: Triumphs <triumphs-bounces@autox.team.net> on behalf of Creig Houghta=
ling <creig555@live.com>
Sent: Sunday, March 6, 2016 7:38:49 AM
To: Triumph List
Subject: [TR] TR6 Stromberg question
My friend's TR6 was running poorly. After the car had been running, and was=
turned off, I noticed drips of gasoline dropping from the port below the f=
orward carb just in front of the intake manifold. I concluded the Gross jet=
was not stopping the flow of gas to the carb and gas was getting pushed in=
to the engine. So I replaced both float valves with standard valves and als=
o changed both floats. After putting everything back together, I ran the ca=
r for a few minutes and turned it off. It was dripping gas out the same por=
t. Looked in the throat from the air filter side and saw a small puddle of =
gas in the lower area right in front of the venturi. As far as I know, that=
means the gas isn't shutting off. Perhaps I didn't adjust the float correc=
tly. Or there is something at the fuel inlet orifice allowing gas to bypass=
the valve. Is there anything I am missing here? Could the enrichment valve=
(choke) be the culprit? I haven't touched that yet. I adjusted the new fl=
oat to fully close the valve when the mold line of the float was parallel w=
ith the horizontal edge of the carb where the fuel reservoir attaches.
Am I missing anything else here?
Thanks
Creig Houghtaling
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Worked on the carbs today, and this is what I learned.<br>
The poor running was primarily due to a vacuum leak. This car is a 76 and h=
as had most of the emission items removed. There was a port on the intake m=
anifold that was probably blocked, but it was open causing the poor running=
. The enrichment valves were both
missing gaskets. This fixed some gas leak on the side of the carbs. The lo=
wer port on the forward carb perhaps should be blocked. I looked at a 74 TR=
6, and on that car this port connects to to the vacuum advance on the distr=
ibutor.
<br>
<hr style=3D"display:inline-block;width:98%" tabindex=3D"-1">
<div id=3D"divRplyFwdMsg" dir=3D"ltr"><font face=3D"Calibri, sans-serif" st=
yle=3D"font-size:11pt" color=3D"#000000"><b>From:</b> Triumphs <triumphs=
-bounces@autox.team.net> on behalf of Creig Houghtaling <creig555@liv=
e.com><br>
<b>Sent:</b> Sunday, March 6, 2016 7:38:49 AM<br>
<b>To:</b> Triumph List<br>
<b>Subject:</b> [TR] TR6 Stromberg question</font>
<div> </div>
</div>
<div>My friend's TR6 was running poorly. After the car had been running, an=
d was turned off, I noticed drips of gasoline dropping from the port below =
the forward carb just in front of the intake manifold. I concluded the Gros=
s jet was not stopping the flow
of gas to the carb and gas was getting pushed into the engine. So I replac=
ed both float valves with standard valves and also changed both floats. Aft=
er putting everything back together, I ran the car for a few minutes and tu=
rned it off. It was dripping gas
out the same port. Looked in the throat from the air filter side and saw a=
small puddle of gas in the lower area right in front of the venturi. As fa=
r as I know, that means the gas isn't shutting off. Perhaps I didn't adjust=
the float correctly. Or there is
something at the fuel inlet orifice allowing gas to bypass the valve. Is t=
here anything I am missing here? Could the enrichment valve (choke) b=
e the culprit? I haven't touched that yet. I adjusted the new float to full=
y close the valve when the mold line
of the float was parallel with the horizontal edge of the carb where the f=
uel reservoir attaches.<br>
<br>
Am I missing anything else here? <br>
<br>
Thanks <br>
Creig Houghtaling<br>
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