DAIHATSU
V1#        B    3.0L    1977-84
V11#        14B    3.7L    1984-
V9#        B    3.0L    1980-
TOYOTA
BU100R        3B    3.4L    1995-01
BU110R        3B    3.4L    1995-01
BU61R        11B    3.0L    8/88-95
 

B	3.0L	1977-84	EXHAUST GUIDE		13335.037	X 4
B	3.0L	1977-84	INLET GUIDE		13335.037	X 4

14B	3.7L	1984-	EXHAUST GUIDE		13335.037	X 4
14B	3.7L	1984-	INLET GUIDE		13335.037	X 4

B	3.0L	1980-	EXHAUST GUIDE		13335.037	X 4
B	3.0L	1980-	INLET GUIDE		13335.037	X 4

3B	3.4L	1995-01	EXHAUST GUIDE		13335.037	X 4
3B	3.4L	1995-01	INLET GUIDE		13335.037	X 4

11B	3.0L	8/88-95	EXHAUST GUIDE		13335.037	X 4
11B	3.0L	8/88-95	INLET GUIDE		13335.037	X 4

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.