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Well said. Good analysis
-------- Original message --------
From: Anthony Rhodes <spamiam@comcast.net>
Date: 10/3/23 6:09 PM (GMT-06:00)
To: triumphs@autox.team.net
Subject: Re: [TR] Strombergs running rich
If it is dumping gas that badly, then it is not a problem with the metering=
needle. That is really a fine tuning device.
That much gas may be from the float chambers having too much fuel. Way to=
o much.
Check the pressure in the fuel line. If it is too high it will overcome th=
e float valve.
Maybe the float valves are not sealing? Maybe the floats are not adjusted =
properly? Or not actually floating and are just sinkers?
-Tony
Sent from my 1837 Babbage Analytical Engine
> On Oct 3, 2023, at 2:44 PM, triumphs-request@autox.team.net wrote:
>
> Message: 1
> Date: Thu, 28 Sep 2023 17:57:54 -0700
> From: Frank Burkhart
> I?m hoping that someone out in Triumph world can provide some clarificat=
ion on carburetors. Currently, Zenith Stromberg carbs on my 1975 TR6. The=
car has been running poorly since Trimphest (too many RPMs?). And then it=
died completely but turned out to need a new rotor. Asked the mechanic, M=
ike, to take a look at the everything to figure out what can be made better=
. What he found was the carbs were dumping gas into the cylinders especial=
ly when starting, to the point the gas was washing down the cylinder walls =
preventing the rings from sealing. Result was a lot of white smoke.
>
> The carbs were rebuilt about 18 months ago by Apple Hydraulics in New Yor=
k. Supposedly all new parts including a new piston in one of the carbs. M=
echanic Mike is questioning the quality but . . . Several paths to try:
>
> 1. New needles and basic over haul. Least expensive but maybe stopgap m=
easure.
>
> 2. Rebuild these carbs using a different shop. Mike recommends a shop i=
n Colorado. I?m would worry about a 2nd rebuild in short period of time.
>
> 3. Replace the carbs.
> 3a. Mike has a pair of SU carbs in good shape. Mike would replace ?cons=
umables? and install
>
> 3b. Find a pair Stromberg carbs
>
> 3c. Mike likes carbs by Mikuni
>
> 3c. Replace with Webers
>
> Any ideas / suggestions on what path seems the best?
>
> Hope all the world is going well for all. Hope to see everyone at Veloci=
ty.
>
>
> Thank you,
> Frank Burkhart
** triumphs@autox.team.net **
Archive: http://www.team.net/pipermail/triumphs http://www.team.net/archiv=
e
teer.com
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<div dir=3D"auto">Well said. Good analysis
<div><br>
</div>
<div><br>
</div>
<div>-------- Original message --------</div>
<div>From: Anthony Rhodes <spamiam@comcast.net> </div>
<div>Date: 10/3/23 6:09 PM (GMT-06:00) </div>
<div>To: triumphs@autox.team.net </div>
<div>Subject: Re: [TR] Strombergs running rich </div>
<div><br>
</div>
</div>
<font size=3D"2"><span style=3D"font-size:10pt;">
<div class=3D"PlainText">If it is dumping gas that badly, then it is not a =
problem with the metering needle. That is really a fine tuning =
device.<br>
<br>
That much gas may be from the float chambers having too much fuel. &nb=
sp; Way too much.
<br>
<br>
Check the pressure in the fuel line. If it is too high it will overco=
me the float valve.
<br>
<br>
Maybe the float valves are not sealing? Maybe the floats are not adju=
sted properly? Or not actually floating and are just sinkers?<br>
<br>
-Tony<br>
<br>
Sent from my 1837 Babbage Analytical Engine<br>
<br>
> On Oct 3, 2023, at 2:44 PM, triumphs-request@autox.team.net wrote:<br>
> <br>
> Message: 1<br>
> Date: Thu, 28 Sep 2023 17:57:54 -0700<br>
> From: Frank Burkhart<br>
<br>
<br>
> I?m hoping that someone out in Triumph world can provide some cl=
arification on carburetors. Currently, Zenith Stromberg carbs on my 1=
975 TR6. The car has been running poorly since Trimphest (too many RP=
Ms?). And then it died completely but turned out
to need a new rotor. Asked the mechanic, Mike, to take a look at the=
everything to figure out what can be made better. What he found was =
the carbs were dumping gas into the cylinders especially when starting, to =
the point the gas was washing down the cylinder
walls preventing the rings from sealing. Result was a lot of white s=
moke.<br>
> <br>
> The carbs were rebuilt about 18 months ago by Apple Hydraulics in New =
York. Supposedly all new parts including a new piston in one of the c=
arbs. Mechanic Mike is questioning the quality but . . . Severa=
l paths to try:<br>
> <br>
> 1. New needles and basic over haul. Least expensive but ma=
ybe stopgap measure.<br>
> <br>
> 2. Rebuild these carbs using a different shop. Mike recomm=
ends a shop in Colorado. I?m would worry about a 2nd rebuild in short perio=
d of time.<br>
> <br>
> 3. Replace the carbs.<br>
> 3a. Mike has a pair of SU carbs in good shape. Mike would =
replace ?consumables? and install<br>
> <br>
> 3b. Find a pair Stromberg carbs<br>
> <br>
> 3c. Mike likes carbs by Mikuni<br>
> <br>
> 3c. Replace with Webers<br>
> <br>
> Any ideas / suggestions on what path seems the best?<br>
> <br>
> Hope all the world is going well for all. Hope to see everyone a=
t Velocity.<br>
> <br>
> <br>
> Thank you,<br>
> Frank Burkhart<br>
<br>
** triumphs@autox.team.net **<br>
<br>
ate.html</a><br>
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