aduih.... xder silibus... camana ni...

valve timing diagram

Dah hampir final, still x tau silibus 1 subjek ni... cedihnya....
Bila buka pastyear... alamak, banyak nya ibtisam ketinggalan... huhuhhuhu...cedih..
buka pastyear, da soalan pasal valve timing...pasal valve overlap... huhu...
nasib baik kat cini ibtisam leh tenet tenet...hehehehehe...

valve overlap ni intake valve and exhaust valve open at the same time... so, overlap of 22 degrees.

CAYOOK.. CAYOOK!!