Why are the carburettor studs so long?

[elanman99]

I removed the Weber 30DGF in order to clean and service it. The previous owner had used no gasket and just used silicone sealant to the manifold. Because the studs are so long I wonder whether a thick spacer was fitted originally to thermally isolate the carburettor?

I see in the 126 manual (on CD) that there is some sort of plate under the carb, what function does it serve?

Thanks

Ian




 

[Bambino126]

Yes there is a plate about 5 mm thick.
Some places call it the " heat shield" others call it the "drip catcher" either way it's there because the carburettor is very close to the hot exhaust which is not ideal.

[Bolek]

do you know where I can download this manual in English?  I have an 86  Polski fiat and of course tons of repair manuals etc in Polish….. but    I need English!

planning a carb clean / rebuild myself     

was it that difficult?   

[elanman99]

Bolek

I found the Carb rebuild quite easy but I have not run the engine yet so I dont know how well it will work yet. There are quite a lot of drillings and therefore fuel passages that cannot be cleaned or checked as they have non-removable blanking plugs.

I purchased an english manual from this site. I understand its a scanned version of the Fiat English manual and its on a CD. I'm impressed with the technical data that Fiat made available (like detailed dimensioned drawings of the chassis etc) but being on CD means having to have access to a PC when working on the car which is not very practical for me.

Ian

[1973/126]

 Sounds like you are missing this bit as mentioned above.
 It looks like you can`t buy it online. Maybe you can make a spacer out of alloy. It shouldn`t be to difficult.

 
 

[Bambino126]

I just got a new one of those for my carb off Ebay - dead easy.
The original ones are white. The new ones are black.

[elanman99]

I just got a new one of those for my carb off Ebay - dead easy.
The original ones are white. The new ones are black.

I never thought of looking, I wish I had as I spent ages making a 8mm thick spacer out of hard plastic and then cutting two gaskets.

Out of curiosity, how do you find fitting the four M6 carburettor nuts, especially the front RH one?

I am reluctant now to get the proper plate off eBay as fitting it would be a pain!


Ian

[Da Londo]

https://www.fiat126ricambi.nl/fiat126/Brandstofvoorziening/BV1016

[124cso]

I am wondering what model / motor you have, i presume it must be a watercooled ?
On my air cooled, that spacer / drip tray is a good half an inch thick and made of a now brown plastic like material.
And of course, only 2 bolt holes