Yes, those compensator jets are also called air
corrector jets; and Solex carbs seem to have alot
of problems with things coming loose. Because fuel
has more mass than air, it has more inertia and
that's
why you need accelerator pumps; but as velocity
through the carb venturi increases,for the same
reason
fuel flow overcomes air flow creating the need for
air corrector jets in order to lean out the mixture
at higher speeds. If one came loose, it would be like
an incredibly large air corrector jet which would
lean out the mixture incredibly; and since using the
choke somewhat alleviates your problem, leaness is
your problem. If that turns out to not be the
problem,
then I would try to find out who rebuilt the carbs
and see just what they did as replacing jets is not
usually needed on carb rebuilds; and they certainly
shouldn't be changing jet sizes unless there was
something that couldn't be repaired that they were
compensating for. Sometimes, older carbs wear out
where the throttle spindles enter the carb body; but
the key clue here is that they didn't seem to have
this problem before the rebuild, then why the
rebuild?
Although, maybe some deposits were filling in wear
areas (such as the carb body where the throttle
spindles fit); and then the cleaning that occurs
before the rebuild flushed that filler out causing
air leaks. If Brian's very good tip doesn't pan out,
you might save some time and headaches by trying to
talk to the rebuilder.I'm looking forward to your
progress.
--- Brian Holm <peugeots@vtlink.net> wrote:
> Joe,
>
> Possibly you are missing one or both of your
> compensator jets. Looking
> straight down the throat of each carburetor, the
> emulsion tube is the
> structure in the center. The compensator jet screws
> into the top of the
> emulsion tube. If it is there you will see a slot
> for a screwdriver in the
> brass jet and a small hole in the center. If it is
> gone you will see a
> threaded hole.
>
> These jets have a tendency to loosen and get inhaled
> by the engine. They
> should be prophylactically Loctited with normal-duty
>
> Loctite. Over-tightening may break the emulsion
> tube.
>
> In re Dan's suggestion on the plugwires, I concur if
> yours are old, and
> suggest going with the late 505 XN6 wires which go
> all the way to the plug.
>
> Brian Holm
>
> At 12:15 AM 8/16/2005, tcb323 wrote:
>
> >Hi Kenneth,
> >
> >Filter is clear and new, brass screens are clear.
> >Is there a filter anywhere else in the system? like
> in the tank?
> >
> >Any idea how to test flow of the fuel pump? maybe
> it's the wrong one?
> >has a pinhole?
> >
> >Can anyone help me find the specs on the carb jets?
> we're stumped.
> >
> >Thanks
> >Joe
> >
> >
> >
> >--- In peugeot-L@yahoogroups.com, kenneth parker
> <elkeni@m...> wrote:
> > > Fuel filter may be gummed up and, also,
> that little screen (I
> >think
> > > there is a little cylindrical screen) where the
> gas actually enters
> >the
> > > top of the carbs.
> > > Ken
> > > On Aug 15, 2005, at 12:27 PM, tcb323 wrote:
> > >
> > > > The sluggishness is pretty even, doesn't open
> up over 3500rpm
> >really.
> > > > I will try cleaning
> > > > the carb really thoroughly, but it's pretty
> clean. The whole car
> >is
> > > > amazingly clean and
> > > > intact, had a really obsessive owner. But
> this problem has me
> >stumped
> > > > so far. Maybe it's
> > > > as simple as the carb shop installed the wrong
> jets or something.
> > > >
> > > > thanks for the advice though!
> > > >
> > > > PS anyone got a set of good 14" rims with
> holes ? I have the
> >early
> > > > kind that won't balance,
> > > > and I don't want to buy new tires to upgrade
> to 15" 505 rims.
> > > >
> > > > Josef
> > > >
> > > > --- In peugeot-L@yahoogroups.com, gary freeman
On
> <riven2649@y...>
> >wrote:
> > > >> <How does it run past 3,000-3,500 rpm? If
> it's only
> > > >> bad under those rpm's, then your progression
> circuit
> > > >> may be clogged. Those are holes from the
> idle circuit
> > > >> in front of the idle holes so that as the
> throttle
> > > >> opens, these are uncovered and provide fuel
> until the
> > > >> main circuit comes into full play. If it
> stumbles off
> > > >> idle and hesitates alot, but then runs fine
> after
> > > >> 3,000-3,500rpm, that is probably your
> problem.
> > > >>
> > > >> --- tcb323 <tcb323@s...> wrote:
> > > >>
> > > >>>
> > > >>> Hi Ken,
> > > >>> thanks for the response - have checked both
> accel.
> > > >>> pumps and they are both squirting -
> > > >>> should it be a stream or a mist? Mine have a
> stream.
> > > >>> Have also checked float level and
> > > >>> needle valves, and brass screens in carb
> inlets. all
> > > >>> seem to be working ok.
> > > >>>
> > > >>> Maybe there's an accel pump adjustment
> procedure I
> > > >>> havent followed?
> > > >>> The PO put a new fuel pump in, is there any
> chance
> > > >>> it's the wrong one and won't flow
> > > >>> enough under high load?
> > > >>>
> > > >>> thanks for everyone's help!
> > > >>>
> > > >>> joe
> > > >>>
> > > >>> --- In peugeot-L@yahoogroups.com, kenneth
> parker
> > > >>> <elkeni@m...> wrote:
> > > >>>> Is the accelerator pump giving you a
> good spray
> > > >>> of fuel on
> > > >>>> acceleration? I assume you know how to
> check it,
> > > >>> but if not remove the
> > > >>>> air filter rubber from the carbs and then
> look
> > > >>> inside the carb throat
> > > >>>> while you work the throttle with your hand.
> If it
> > > >>> is working well you
> > > >>>> should see a stream of gas squirting into
> the carb
> > > >>> throat. This should
> > > >>>> be the case with both carbs though, in
> actual
> > > >>> driving, the secondary
> > > >>>> kicks in later than the primary. You can
> check
> > > >>> the pumps with the car
> > > >>>> off.
> > > >>>> Ken
> > > >>>> On Aug 14, 2005, at 7:46 PM, tcb323 wrote:
> > > >>>>
> > > >>>>> Hello,
> > > >>>>>
> > > >>>>> Thanks to all who have given advice on my
> poor
> > > >>> acceleration and hill
> > > >>>>> climbing ability on my 76 gas auto
> california
> > > >>> emission 504.
> > > >>>>>
> > > >>>>> We think it's a carburation problem. When
> you
> > > >>> give it 1/2 choke on
> > > >>>>> acceleration, it'll pick up, but without
> that
> > > >>> choke goose, it's
> > > >>>>> sluggish and feels 'held back'
> > > >>>>>
> > > >>>>> this makes us think it's starving for gas.
> PO
> > > >>> states that the car
> > > >>>>> hasn't run right since the carbs were
> rebuilt.
> > > >>> We opened up the main
> > > >>>>> jets and found 100 on the secondary and
> 120 on
> > > >>> the primary.
> > > >>>>>
> > > >>>>> Haynes book seems to call for 112 +- 2.5.
> I am
> > > >>> not sure it takes the
> > > >>>>> CA emissions into account. All the smog
> garbage
> > > >>> is present and seems to
> > > >>>>> function.
> > > >>>>>
> > > >>>>> Can anyone look up what the right jets for
> these
> > > >>> Solexes are?
> > > >>>>>
> > > >>>>> dwell angle is set at 56deg. Manual calls
> for
>
=== message truncated ===
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Received on Tue Aug 16 15:22:16 2005
