ORIGINAL: Kmot
Could an owner of an OS FR5 radial please do me a favor and measure the diameter of the carb barrel where it inserts into the block that attaches to the back of the engine?
Thanks!
If I understood correctly the measure I had to take, it's the diameter of the connection between the carb body and the right angle adapter that connects the carb to the backplate. In that case the carb outlet has an ID of 9mm (not considering the O-ring that's there), whereas the right angle connector that slides into the carb outlet has an OD of 8mm (if one wanted to be pedantic, it's the right angle block that inserts into the carb, not vice versa
).
May I ask you if you need this diameter because you want to use the OS carb on your ASP radial? (by the way, very nice polishing job!)
Radial.