Jidhka Yandi 645 taxanaha mashiinka naaftada ah ayaa laga sameeyaa taarikada gawaarida gawaarida caadiga ah ee la isku halleeyo, marka laga reebo guryaha ugu weyn ee lagu been abuuro bir. Marka la barbar dhigo mashiinka mashiinka ee mashiinka naaftada ah ee 567 mashiinka naaftada ah, oo ah 645-ka taxanaha Dhacdada Mashiinka Dhacdada ayaa leh sanduuqa qaadashada hawada, kaas oo yareyn kara ka-hortagga hawada ee loona hubiyo sahayda hawada ee isku-darka. Ma jiro kanaal biyo-qaboojiyaha ah xagal-qaabeysan oo ku yaal qaybta sare ee qaybta mashiinka, kaas oo yareyn kara culeyska kuleylka jirka iyo dhibacada ay sababaan. Caantuftaftaftaftaftaf waxaa laga go'ay kareem yar oo bir ah. Joornaalka ayaa lagu demiyey kuleylka kululaynta. Dhexroorrada joornaalada ugu weyn waa 190 milimitir iyo kan ka mid ah isku xirnaanta Rod-ka Rod waa 165 milimitir. Jaakada dibedda ee bistoolada ayaa laga sameeyay aloy bir ah oo ay si xor ah u qaadanayso qaab dhismeedka diyaaradda oo si xor ah u rogaya, kaas oo u oggolaanaya bistoolada si loo helo culayska kuleylka si siman loo qaybiyo oo xirto. Biistoomka waxaa lagu qaboojiyaa saliida matoorka lagu buufiyo kabaha ka jajaban qolka qaboojinta bistoolada ee loo yaqaan 'ospllation'. Nolosha adeegga bastoolada ayaa gaari kara 25,000 saacadood. Liiqa lineuled-ka ee jaakad biyo ah oo leh jaakad biyo ah ayaa laga sameeyay alloy xayiraad bir bir ah. The 645-ka ee matoorka naaftada ah ee matoorka naaftada ah waxay qaataan duro shidaal oo jilicsan oo isku daraya matoorka shidaalka cadaadiska sare iyo duritaanka shidaalka hal unug. Sida 567-ka taxanaha ah ee matoorada naaftada ah, taxanaha 645 ee taxanaha ah waxay qaateen isku darka tacbiyadda suptcharg iyo gaaska ee wasakhda ah, oo si fiican u xallineysa dhibaatada supercharin ee matoorada laba-stroke naasaha. Marka mashiinka naaftada hoostiisa ku hooseeyo oo tamar badani aad u yar tahay, crafkaqadda mashiinka naaftada ah ayaa kaxeeya supercharger ee supers-ka iyadoo loo marayo giards. Marka culayska mashiinka naaftada uu sarreeyo, qaadashada ayaa kaxeeya marawaxadaha inuu wareego. Naqshadeyntani ma fiicnaan karto oo keliya xawaaraha iyo tayada tayada matoorka naaftada ee xamuul yar, laakiin sidoo kale sii ciyaar buuxda oo u faafinta faa'iidooyinka xamuulka sare.