Allocation And Marking Of Bearing Shells On Crankshaft

Courtesy of PORSCHE CARS NORTH AMERICA, INC.

Allocation of main bearing shells

Allocation of main bearing shells up to and including date of manufacture 23.09.2012

Letter on the cylinder block	Letter on the crankshaft web	Color identification of the bearing shell for bearing cover	Color identification of the bearing shell for cylinder block
A, B, C	R	Red	Red
A, B, C	G	Yellow	Red
A, B, C	B	Yellow	Yellow
A, B, C	V	Blue	Yellow
D, E, G	R	Yellow	Red
D, E, G	G	Yellow	Yellow
D, E, G	B	Blue	Yellow
D, E, G	V	Blue	Blue
H, I, K	R	Yellow	Red
H, I, K	G	Yellow	Yellow
H, I, K	B	Blue	Yellow
H, I, K	V	Blue	Blue
L, M	R	Yellow	Yellow
L, M	G	Blue	Yellow
L, M	B	Blue	Yellow
L, M	V	Violet	Blue

Crankshaft bearings	1	2	3	4	5	6	7
Letters on the cylinder block	G	H	K	H	G	E	G
Letters on the crankshaft web	G	B	R	V	B	B	G
Color identification of the bearing	Yellow	Blue	Yellow	Blue	Blue	Blue	Yellow
shell for cylinder block (upper bearing shell)
Color identification of the bearing	Yellow	Yellow	Red	Blue	Yellow	Yellow	Yellow
shell for cylinder block (lower bearing shell)

Allocation of main bearing shells from date of manufacture 24.09.2012 inclusive

Letter on the cylinder block	Letter on the crankshaft web	Color identification of the bearing shell for bearing cover	Color identification of the bearing shell for cylinder block
A, B, C	F	Red	Red
A, B, C	E	Yellow	Red
A, B, C	D	Yellow	Yellow
A, B, C	C	Blue	Yellow
A, B, C	B	Blue	Blue
A, B, C	A	Violet	Blue
D, E, G	F	Yellow	Red
D, E, G	E	Yellow	Yellow
D, E, G	D	Blue	Yellow
D, E, G	C	Blue	Blue
D, E, G	B	Violet	Blue
D, E, G	A	Violet	Violet
H, I, K	F	Yellow	Red
H, I, K	E	Yellow	Yellow
H, I, K	D	Blue	Yellow
H, I, K	C	Blue	Blue
H, I, K	B	Violet	Blue
H, I, K	A	Violet	Violet
L, M	F	Yellow	Yellow
L, M	E	Blue	Yellow
L, M	D	Blue	Yellow
L, M	C	Violet	Blue
L, M	B	Violet	Violet
L, M	A	Violet	Violet

Crankshaft bearings	1	2	3	4	5	6	7
Letters on the cylinder block	G	H	H	H	G	E	G
Letters on the crankshaft web	A	B	A	C	C	A	B
Color identification of the bearing	Violet	Violet	Violet	Blue	Blue	Violet	Violet
shell for cylinder block (upper bearing shell)
Color identification of the bearing	Violet	Blue	Violet	Blue	Blue	Violet	Blue
shell for cylinder block (lower bearing shell)

The first letter is for bearing cover one, the second for bearing cover two, and so on.

Marking on cylinder block:

Letters are shown on the sealing face of the oil pan.

Courtesy of PORSCHE CARS NORTH AMERICA, INC.

Marking on cylinder block

Marking on crankshaft:

Letters must be stamped on the outer crankshaft web of cylinder 1.

Courtesy of PORSCHE CARS NORTH AMERICA, INC.

Marking on crankshaft