Valve Guide

[Amaury_Reno]

What exactly is an Valve Guide? i've been having a hard time getting a hold on this thing, where it is? its function? i don't know. can anyone show me some pic please?

 

[blinx9900]

part that the valve stem goes up and down in i believe, its inside the cylinder head...

 

[Amaury_Reno]

can anyone show me a pic of how its assembled? don't realli understand blinx...