I am doing some work on my IO-360-A1B6 and I noted when I took off the exhaust that the nuts were non-standard. That is, they were much taller (maybe 3/8") than regular 5/16-18 nuts and appeared to be made of some gold-ish colored material. They look kind of like the brass Continental exhaust nuts, but those are 5/16-24.
When I checked the parts manual, I found the exhaust nuts listed as STD-1410, NUT, 5/16-18 plain.
Anyone have any idea what the existing nuts might be, and why they are there? And whether I should re-use them or replace with the standard nuts from Aircraft Spruce ($1.65 each), or maybe ARP flanged header nuts (10/$10)?
Thanks,
Andy
When I checked the parts manual, I found the exhaust nuts listed as STD-1410, NUT, 5/16-18 plain.
Anyone have any idea what the existing nuts might be, and why they are there? And whether I should re-use them or replace with the standard nuts from Aircraft Spruce ($1.65 each), or maybe ARP flanged header nuts (10/$10)?
Thanks,
Andy