Hi List,
I called carb guru Joe Curto, and explained the problem my car was
having. Basically, hard starting, hard to launch, rough idle, hot running.
I suspected a lean mixture. The plugs read a little lean, too. Joe was
not surprised. He claims that gasoline is formulated leaner now, than when
these cars were built.
Joe sent me two ZS B1E needles as were originally used in Jags. Before
I installed them, I measured their diameter about 1/4" up from the point,
and they are .010" skinnier than the stock needles.
I installed them at a nominal setting of 1 and 1/2 turns from stop.
Right away, the car ran better in all respects!
Strange thing is, for a long time I was chasing an electrical arching
problem on the spark plug wires and plugs at idle (you could see it at
night). That has greatly diminished also. I suppose this is a case of an
electrical problem being a fuel problem!
I understand Ted Schumacher also has these needles.
Thanks for the tip, Blake.
Regards, Rick 1973 TR6 CF2570U
www.joecurto.com
www.tsimportedautomotive.com
Original Message:
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Subject: Re: ZS needles?
At 11:39 PM 8/30/2003, rstirb2@townisp.com wrote:
>Are there different needles available for Zenith-Stromberg 175-CD2 carbs
>that would give me a richer mixture than the stock needles? These carbs
>have fixed jets and adjustable needles which are at full rich setting, and
>still are too lean. There are no vaccuum leaks.
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