Hey Toshi, thanks for sending me the info. I actually didn't see your reply until today but found some pics from a polish website that showed the two different studs for the 126. I was able to find something similar on amazon.com, and ordered
m6x70mm to replace the current stud. It seems to be perfect. The only difference is I went with what the Fiat 126 manual shows; m6 nut + washer + split lock washer. It took a lot of time to remove the old stud...but I think I got everything back on there.
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I was wondering, for the choke cable, whats the purpose of the nut closest to the cable entrance? I can't remember if it's supposed to pose some resistance against the cable so that the choke lever has a little resistance as well?
While I was in there, I had a BCD fuel pump I picked up a couple of years ago I wanted to install. It seems like the current pump had no support-to-engine gasket, but they used red gasket maker? Hopefully it's not a sign somethings up. I had two washers with the new pump. I put the thicker one on the bakelite to fuel pump side. Is this correct or does it matter?
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Don't worry, that inlet fuel line is not attached yet as I need to figure out if I will route the fuel return line from the carb back to the fuel pump or just cap it at the carb. Is there any benefit to cap?