Hello. I have problem with rubber diaphragm. I have been read about this in manual for P-40 from 1943, and I don’t know what it is rubber diaphragm. Maybe someone know what it is and where it is? I apologies for my English. I don’t know this language very well.
Sorry for dimnes. This is manual: http://www.tailwheel.nl/downloads/p40trainingsmall.pdf the "rubber diaphragm" is on 11 page, note 1. If someone know where is that diaphragm, and maybe have some... more