1970 Flavia Coupe 2000 carb

[msh2908]

Hi folks,
Can anyone explain the differnce between the Solex C34 EIES and C36 EIES carbs please and which of the two should be fitted to my car?

With thanks

Mark

[Richard Fridd]

Choke size?

[Scott]

The 34 and 36 refer to the choke tube bore size in the carb; this then dictates the range of choke tube (aka venturi) sizes that model of carb can accommodate.

The 34 for the Flavia will have a 24 or 26mm tube; the 36 a 28mm tube. In this respect you may find the page http://www.flavia2000consortium.org.uk/Technical/Carburettor%20Information.html useful.

As to which one is best for your year of car then I'll have to defer to someone else to give you a definitive answer! My instinct would have to be the larger size however given the engine capacity and peak revs!

[msh2908]

Thanks Scott and Richard,

Can anyone help with the right carb for my car.  I have both carbs here.

Mark

[Sebastien]

Here the information, taken from :

The Lancia Fulvia and Flavia, a collector's guide: (useful to have in your case)

Flavia 2000 Coupe, 820030/031 models, 1969-1971

single Solex C34 EIES downdraught compound carb

(NOTE: Later 2000 Coupe had a C34 EEIS double choke downdraught!)

[chriswgawne]

Just to add to Sebastien's data, Angela Verschoor's book states the following:

Engine type 820.000 (114 hp as fitted to 819.610/1, 819.810/1, 820.010 and 820.410 Saloons and 820.030/1 Coupe 2000) ) was fitted with either Solex C34EIES1 or Solex C34PAIA8

Engine type 820.200 ( 115 hp as fitted to 820.210/1 saloon and 820.230/1 2000 Coupe)  was fitted with Solex C36EIES or Solex C36EEIS

All the engine variants above were 1991cc.
Hope this helps.
Chris

[Sebastien]

Chris,

I checked another source, Puttini's Fulvia, Flaminia, Flavia book.

It prints the homologation certificate of the Italian transport ministry for each variant.

For the 820.030 /031 Flavia 2000 Coupe there is only one carb the Solex C34 EIES (with all the information about tubes, jets, etc.)

For the 820.230 /231 2000 Coupe the standard carb is the Solex C36 EIES, and only as "Variante per allestimenti speciali / Variant for special applications" the Solex C36 EEIS.

I do not know where Angela Verschoor took her information from - maybe the Workshop manuals?

Interesting is the 34 / 36 question: Wim Oude Weernink in his Fulvia Flavia collector's guide gives for both the Flavia 2000 and the later 2000 Coupe the 34 size only, while Puttini's homologation certificates give 34 for the Flavia 2000, and 36 for the 2000 Coupe.

Maybe some Flavia owners will comment, and the Flavia consortium is also a source of further info.
(I had a Flavia 2000 Coupe from 1984 to 2000 and it had the EIES compound carb - once set up by a Lancia specialist worked very well!)

[chriswgawne]

That's interesting Sebastien.
Maybe the instigator of this thread could now provide the variant number identification of his car?
That might now help him  establish which carburettor is correct for his car.
And as you infer, I would suggest that the info in the Puttini book (which I don't have)  likely to be the most correct.
Chris

[GG]

Sebastien and Chris -
The joys of figuring out what they did. All good stuff... I would agree with Chris that Puttini (and the homologation sheets) are the best way to figure out "where they started", but would recommend the parts book (which typically lists all the variants and when implemented) as to what they actually did. Of course, one has to get the later parts books, as the early ones list only up to a certain date. 

[msh2908]

Thanks everyone for the ongoing discussion about which carb is correct. Chris asks about the variant number of my car. Not too if he means model/chassis number? Anyway the chassis number is 820 031 *002985* which I'm told makes it a mid 70's model Flavia 2000 coupe.

Does this help or hinder and also can I ask if you had my car with both carbs which one would you fit?

Mark

[Sebastien]

820.031 confirms it to be a RHD Flavia 2000 Coupe.

I would suggest fitting the original C34 EIES, as designed and homologated by Lancia in period.
Once you have enjoyed like that, you can always try to swap to the C36, to feel the difference.

The page quoted by Scott gives the initial jetting and set-up for those 2 carbs: http://www.flavia2000consortium.org.uk/Technical/Carburettor%20Information.html

[msh2908]

Thanks for all your comments. The car has the c34 on at the moment, so I think I'll do as Sebastien suggests and pop the c36 on to see if there is a difference.

Mark

[chriswgawne]

I would do exactly as Sebastien says.
There has been some mention of increased jet sizes to improve running with modern fuels - I referred to it in my recent post regarding B12 running - but to be honest I am not convinced that this is beneficial and all our old cars are running on standard OE jet sizes where the engine remains standard.
I know others will disagree with me but I can only speak from personal experience.
Chris