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[Steve Richardson]

I tried asking the TR7 Forum this, but if you're not one of their old-timers
they tend to ignore you, so... My TR7 has two side-draft Zenith
carburetors, each feeding 2 cylinders. I've rebuilt them (not the first
time -- I'm pretty familiar with these things) but now that they're
installed, something's not right. If you manually lift the part that moves
the needle in the jet on the front carburetor, the RPMs immediately fall and
the car dies, as it should. If you do that for the rear carburetor nothing
at all happens. Since the engine will only run at high RPMs I'm assuming
that it's trying to run on just the 2 front cylinders, but I can't figure
out what's wrong with the rear carburetor. It was flooding when I first
tried to start it so I took it off and adjusted the float height, which
stopped the fuel seepage but didn't do anything for the basic running
problem. I should probably mention that this is the first time the car's
been started in over 10 years, and that I also replaced all the vacuum hoses
and fittings since they were starting to crack. Any thoughts on what's
going on here?
- Steve Richardson
St Louis MO
76 TR7 (original owner)
50 Dodge Wayfarer

[Leon Rowell]

Steve,

I hope you get lucky in this group but if most of the people here are
like me they may not know much about the foreign cars. The regulars that
frequent this group are really good about answering questions if they
are up to speed on the subject. The only thing I'm thinking is that you
may have over compensated on the float adjustment. If the rear two
cylinders are running lean I think it could cause damage from
overheating in those cylinders. Just some thoughts....

Leon Rowell


Steve Richardson wrote:

[Guest]

Are you sure they aren't SU carbs?
More likely the fuel pipe from the bowl to the fuel jet is plugged.
It is quite small and allows the finest silts to settle there. You
can usually wash it out with a carb spray cleaner.

Pete
Wpg, Man.
39 ply
50 ply
57 mga
71 midget



I should probably mention that this is the first time the car's

[Steve Richardson]

Thanks all, I got sidetracked by a couple of larger problems: $3,000 worth
of dental treatment for my "significant other" (our alleged health insurance
has paid a grand total of $32) -- and my daily driver, a 93 Taurus, suddenly
won't start, just cranks and cranks. I had just driven it home with no
problems when this started. It's funny how cars can sense that it's time to
break down, just when you've spent all your money.

- Steve R
St Louis

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