Descripition

Length : 61.000 mm
Inner Diameter : 8.500 mm
Outer Diameter : 14.000 mm
 

Make	Engine	Model
Toyota	2L (Mark 1)	4 Runner LN60
		4 Runner LN61
		Dyna 100 LH80
		Dyna 150 LY60
		Hiace LH51
		Hiace LH71
		Hilux LN56
		Hilux LN60/61
		Hilux LN65
		Toyoace LY31
	2L Turbo (Mark 1)	Hilux LN130
		Landcruiser LJ70
		Landcruiser LJ71
	L	Blizzard LD10
		Hiace LH11
		Hiace LH30
		Hiace LH50/60/70
		Hilux LN40
		Hilux LN46
		Hilux LN55

In most types of reciprocating engines, a valve guide is provided for each poppet valve in the cylinder head. Along with the valve spring, it serves to positively locate the valve so that it may make proper contact with the valve seat. A valve guide is a tube-shaped piece of metal, pressed into the cylinder head, with the valve reciprocating inside it. Guides serve also to conduct heat from the combustion process out from the exhaust valve and into the cylinder head where it may be taken up by the cooling system. Bronze is commonly used, as is steel; a balance between stiffness and wear on the valve is essential to achieve a useful service life.