carburator 30 pict

[althomas]

Pentru motor de 1300 cmc,ce carburator merge ? 30 sau 31 pict? Am de 30 pict si nu prea trage,cu toate ca e nou,si toate sunt la punct.

[Komissar]

Esti sigur ca e "la punct" ? Ar trebui sa traga cu 30-ul ...

[elkan peter emil]

nu stiu daca te ajuta....

solex_info pdf.pdf

[bogdanawo]

Chiar foarte util pdf-ul acela. E cea mai simplă, utilă şi extrem de explicativă documentaţie pe care am văzut-o până acum. :icon_thumright:

Modificat 4 Aprilie, 2011 de bogdanawo

[MikeRG]

1300 de care? simpla admisie? dubla admisie?

un 1600 simpla admisie din 1970 merge de ex cu un 30 pict 2

un 1300 dubla admisie din 1972 merge de ex cu un 31 pict 3

un 1200 (simpla admisie) din 1972 sau din 1981 are pe el un 30 pict 3

un 1600 dubla admisie merge cel mai bine cu un 34 pict 3

http://www.ruddies-berlin.de/solex.htm

iar daca e nou, probabil ca e un brosol H30/31 caz in care tre' se te joci cu jicloarele...

ia uite ce zic si baietii astia:

http://www.vw-resource.com/carb.html#30

"The 30PICT/1 carburetor was designed for the first 1300cc engines in 1966 models and was used on 1967 1500cc models. Then came the 30PICT/2 in 1968/1969 for the 1300/1500cc engines and the 30PICT/3 for the US-only 1970 1600cc single-port engine. These all have the same sized venturi (24mm), which allows a larger airflow than the earlier 28 series - which suits the larger capacities better. The /1, /2 and /3 30PICTs have increasingly complicated fuel circuits for better mixture control. Any of the 30 series (30PICT/1, 30PICT/2, 30PICT/3 and modern replacement H30/31) will work fine with the 1500cc and 1600cc engines.

Someone wrote to ask -

Can I use my 30PICT/1 carburettor on my 1600cc dual-port engine?

Rob responded -

You can use SOME 30PICT/1 carburettors on a 1600cc engine. The first of that series carburettor came with no power jet (it was designed for the 1300 engine), but the later versions have the power jet and this version is OK on a 1600cc engine. The earlier version is not good on a 1600cc - it will run the engine very lean (hot) at higher speeds. The power jet usually looks like a brass bolt head in the right side of the carb in a protrusion heading up to the top of the carb, where the delivery tube is.

The 1970 1600cc has a B in front of the engine number, and was a single port engine. The first dual port 1600s came in 1971, and have a double letter in front of the engine number, AF or AD for that year.

The H30/31 Brosol carburettor can run the 1600cc engine OK, but it MUST be jetted correctly. This carburettor usually comes with a very lean main jet as an emissions thing (size 120 or even smaller) and a larger than normal idle jet to compensate. On a 1600cc the main jet should be a size 127.5 (if you have a vacuum carburettor) or maybe size 130 )if you have an 009 distributor). The idle jet should be a size 55, and power jet size 65.

The air correction jet size is very important when using a smaller carburetor on a larger engine. This jet stops the carburetor going over-rich at medium-high throttle. The 1600cc DP can flow more air than the 1600cc SP and smaller engines. And since higher airfow means a higher vacuum in the throat, this sucks in more fuel for a richer mixture, so you then have to enlarge the air correction jet to match the higher airflow. If not, the engine will run rich at medium-high throttle. The air correction jet should be about size 125.

Later twin-port 1300s (after 1971) have a 31PICT/3 carburettor, which has a 25.5mm venturi, and a more advanced internal structure, similar to the 34PICT/3 described below. All these 30 and 31 series carburettors ( 1200cc, 1300cc, 1500cc, and 1600cc engines) can be replaced by the modern equivalent Brosol H30/31, so long as it is jetted to suit the engine size (airflow). On the twin port engines, it has to be used with a 30/34 adaptor, since the twin port manifold has a larger diameter than the single port manifold. (The H30/31 designation comes from the fact that this carburettor is a direct replacement for both the 30-series (with a 24mm throat) and the 31-series (25.5mm throat) used on the post-1971 1300s in Europe etc.

Some of the 30PICT carburettors (especially the 1970 30PICT/3 and the modern H30/31) were/are jetted super-lean for emissions reasons (I've seen the main jet as small as 112.5). Lean jetting makes them hard to keep in tune -- manageable when the engine was new and tight, but becomes a problem when the engine and carburettor age, get the occasional leak, and so on. When using the H30/31 on a 1600cc single-port engine with a vacuum distributor, try a 55 idle jet, 125 main jet and 125 or 130 air correction jet. Leave the 65 power jet (right side) as-is - that's about the right size.

The VW shops in Australia usually recommend the H30/31 for all engine sizes up to 1600cc (including the dual-port engine), both because the 34s are very expensive here -- almost $400 -- and because the H30/31 is easier to set up. The H30/31 also tolerates the 009 distributor better than the 34 sized carburettor -- less likelihood of flat spots. The H30/31 carburettor has a throat only a mm or so smaller than the 34 anyway, so you should not see any significant drop in power around town (compared to the larger 34) -- it would probably run out of breath a little sooner at high speed and that's about it.

The development of the 30/31 carburettors is interesting... the 30PICT series has a 24mm throat, and it's final development was the 30PICT/3 used in the 1970 1600 single-port engine (in the USA). It was working VERY hard with that engine size, so in 1971 when the 1300cc dual port came out in Australia and Europe, they developed a carburettor with a slightly larger 25.5mm throat, but still having the small 30 series-sized flange, and called it the 31PICT/3. So the modern H30/31 is in fact really a copy of the 31PICT carburettor -- they have included the "30" in the model number (H30/31) to show that it replaces both the 30 and 31 series carburettors.

You can't buy a brand new 30PICT/2 carburettor, but you can buy a brand new H30/31 model, which is the replacement carburettor for all the 28 and 30 series. It has a fractionally larger throat but he same inlet manifold fitting, so you'd get a tiny increase in hp and would probably get a corresponding tiny reduction in fuel economy. The 30PICT/2 is one of the most reliable carbs Solex ever made, and it matches the 1500/1600cc single-port engines very well."

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Jiclor principal corect pentru 1600 mi-am luat de la Augsburg cu ceva ani in urma (127,5) - emulsoarele - doar din dezmembrari; auxiliarele la fel, doar cele de relanti se mai gasesc noi, sigur g55, posibil mai mari (g60) sau mai mici (g50) - un 31 pict 3 are un g47,2 :P

Pe www2.cip1.com se gaseau intr-un timp la cutie, cate 10, de toate neamurile si "grosimile"; ideea de a cumpara in grup pentru a avea piese s-a fasait ca atatea idei...

Modificat 4 Aprilie, 2011 de MikeRG

[althomas]

MULTUMESC ptr. raspunsuri,revin cu precizari.

Carburatorul este 30 pict 1,are un singur reglaj la aer,iar motorul are seria F 1318349= AN???,SIMPLA ADMISIE.

Cred ca ma descurc acum cu reglajele.Am gasit bujiile afumate,dupa ce am reglat cu stroboscopul delcoul.,mai verific compresia.