Bill,
Sounds like it could be a vacuum leak. Maybe try to spray some wd40
where the carbs are attached and the intake manifold to see if you can
detect a leak.
Also check the dash pots to insure they are filled with 20W or ATF. Make
sure the carb pistons are not sticking.
I use that blue gasket stuff in addition to the stock gaskets when
attaching both the intake manifold and the carbs to the manifold.
All 3 engines purr at around 750 to 850 RPM when warm.
Bob
On 09/17/2013 03:18 PM, bill_beecher@flash.net wrote:
> Have just spent 1/2 the day trying to resolve the idle, or lack thereof, on
> the TR3B project. Engine is in the chassis only as the body is still off at
> the painter. Carbs freshly re-built, new electric fuel pump installed,
> timing set, vacuum line attached and advance checked and working.
>
> Starts and runs great, but will not idle down below around 1500 RPM. After
> that it will just start to slowly stumble then die. Always starts right
> back up. I have adjusted the jets 1-2 & 3 flats each way with no
> discernable difference.
>
> What else should I check?
>
>
> Many thanks,
> Bill
>
> Bill Beecher
> '58 TR3A TS/30766L "Tarbaby"
> '62 TR3B TCF/2549L " Aunt B" (in rehab)
> <http://www.triumphowners.com/1566> www.triumphowners.com/1566
> '68 Land Rover Series IIa 88" "The Beast"
> "Keep Calm and Carry On
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