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Solex 24/21 carbs

My 223 Lomax has very erratic tickover, though the plugs tell me that the overall mixture is fine. A Solex 24/21 carb is fitted, not even mentioned in the Haynes manual, and I can't see an idle mixture screw anywhere. Slow running would appear to be governed by a throttle stop screw on a quadrant.
A French website tells me this carb was fitted to a Citroen Mehari Dyane 6 and 8. Can anyone suggest where I can get an instruction leaflet and/or spares? Very reluctant to strip down unless I know this!

Membership No. 1966

Re: Solex 24/21 carbs

Patrick,
The 24/21 carb is very similar to the 26/18 (although superior, having been fitted to Dyanes ) and the idle mixture screw is on the front of the carb angled at 45! There may be an anti-tamper cap on the screw which is making it hard to see.

The throttle-stop adjusts the tick-over speed only, not mixture. Remove the idle jet (next to fuel filter) and blow that through before you do anything else.

Rgrds
Callum

Membership No. 1595

Re: Solex 24/21 carbs

Hi Callum
Thanks for that. I removed the idle mixture adjuster screw, and found the taper bent, also starting to cross-thread, neiher of which would have helped. I'm reluctant to strip further without knowing where I can get a source of spares, or even a new carb. Any ideas, please?

Membership No. 1966

Re: Solex 24/21 carbs

Hi Patrick
Have a look at the ECAS website they sell most things

Membership No. 1540

Re: Solex 24/21 carbs

Ray
A Google search of ECAS failed to show up anything relevant, can you please let me have the address, and what these initials stand for? Thanks

Membership No. 1966

Re: Solex 24/21 carbs

Eastwood Continental Auto Spares

http://www.ecas2cvparts.co.uk/

2cv emporium

Membership No. 1595

Re: Solex 24/21 carbs

Patrick,
look at the beginning of Chapter 2 in Haynes and the information there is appropriate for the 21-24 version of the 26/35 carburettor.
This version had primary and secondary venturi diameters of 21mm and 24mm.

Chapter 12, Supplement, page 179 gives the information for the later ( post 1980) version of the 26/35 carburettor, which has venturi sizes of 18 and 26mm.

Despite what our French friends may think, the 21-24 version was used across the range of A series vehicles, including 2CVs. ;o)

Ken
( Probably best if you could copy and paste some of this thread over to the new forum, in case the curtain falls on this one...)



Patrick Howell
My 223 Lomax has very erratic tickover, though the plugs tell me that the overall mixture is fine. A Solex 24/21 carb is fitted, not even mentioned in the Haynes manual, and I can't see an idle mixture screw anywhere. Slow running would appear to be governed by a throttle stop screw on a quadrant.
A French website tells me this carb was fitted to a Citroen Mehari Dyane 6 and 8. Can anyone suggest where I can get an instruction leaflet and/or spares? Very reluctant to strip down unless I know this!

Membership No. 724

Re: Solex 24/21 carbs

Thanks, chaps, that's very useful.

Membership No. 1966