I am in the process of rebuiding a super A it had the original Felt pad as shown in the parts manual.Did the factory put steel wool between left fender and the transmission, preasure washing 140 and keep finding what looks like still wool between fender and trans.
I thinkyou are right on type of meterial, some type of felt pad, steel wool would have rustedView attachment 72186My 140 has this pad there. It looks like it is probably some sort of felt but it's a bit crusty on the edges from debris and paint. My guess is it isolates vibration to keep from rattling the fender.
big piece of Jute padding there. I've disassembled many 140s and have found solid pieces before and most of the time just remnants of it, or just dirt. I leave it out when restoring one to keep the moisture from building up; but I guess it doesn't keep the dirt out unless the owner keeps it clean. No issues with rattling or vibration when it isn't there. Those fenders are pretty rigid.Did the factory put steel wool between left fender and the transmission, preasure washing 140 and keep finding what looks like still wool between fender and trans.