IDA float setting - metal/plastic float, same settings ???

[Rasser]

Hi all

I have jut opened up my carbs for drilling 3rd prg. hole, changing venturis and setting floatheight. I found a tech article that shows to set the float height to 5,5-6mm above the top of the carb body. But this tech article shows a metal float, and my new 48 IDA has a plastic one.
Does the same float height apply to both type of floats ?




As regarding to the quality of these new IDA´s...........
There were 3,5mm difference in floatheight from one carb to the other, one of the banjo bolts were filled with machining debris and don´t even get me started on the quality of the venturi castings, which are now luckily changed to 34mm (picture shows both venturis)........

[Hotrodvw]

Are these Italian IDA's???   

[Rasser]

Are these Italian IDA's???   

Not old original ones (NOS), just new IDA´s. I don´t know where they are made though.

[Harry/FDK]

Hi Rasser, These are al made in Spain. I had the same problems. Since i'm to nervous  to work on the carbs,
i had them done by a good shop here in the Netherlands (ABC Tuning). They had never seen so much crap in
these...

[Rasser]

Is now a good time to start telling about when I first received the carbs, and i had to send one back because the progression holes didn´t line up as they should?
When one progression hole was visible in one of the "tubes", then I couldn´t even see the beginning of one in the other tube. It took me a while before I figured out that the entire throttle shaft wasn´t machined properly in a 90 degree angle to the "tube" - more like 85 degree or so. This resulted in this strange problem, luckily for me I found the fault before mounting the carbs.
They would have been near impossible to tune with the progression holes that much out of sync!

Quality control....  obviously not!!!

anyway - anyone know if the float setting is different with these plastic floats ?

[WhiteTrash]

The float setting should be the same, all later and new floats are made from plastic or dense foam (cheaper to make then solder two brass halves together). The important part is the metal tab which shuts the fuel off.
You may find that the carb body is not a good casting and the fibre washer under the needle valve is to thick to get the right height. I had to use a very thin cooper washer otherwise the needle valve would have shut to early, starving the fuel.

And yes the quality is shocking, every one of the new IDA's need totally stripping, checking and cleaning.
Don't forget to put a little bit of grease in the throttle shaft bearings, they're as dry as a nun's c**t and will wear out and stick in no time.

Frank

[Rasser]

And yes the quality is shocking, every one of the new IDA's need totally stripping, checking and cleaning.
Don't forget to put a little bit of grease in the throttle shaft bearings, they're as dry as a nun's c**t and will wear out and stick in no time.

Frank

Thanks for the tip. I have heard about a set of new 48´s where one bearing was missing in one of the carbs.
Schocking!