Standard size bearing

If engine is under one of the following conditions, select a new standard bearings as follows, and install it.

• Bearing is in defective condition.
• Bearing clearance is out of specification.
• Crankshaft or cylinder block is replaced.

1. Check crankshaft journal diameter according to the following procedures.
   • There are five stamped numbers (any of "4" through "9") on crank web No. 4 as shown in figure.
   • Those numbers represent crankshaft journal diameter as follows.
     Fig 1: Identifying Stamped Numbers

     Courtesy of SUZUKI OF AMERICA CORP.
   • Determine crankshaft journal diameter for journals No. 1 through No. 5 using stamped numbers and following table.

     Crankshaft journal diameter 

     CRANKSHAFT JOURNAL DIAMETER SPECIFICATIONS
     
     

     Stamped number	Journal diameter
     4	51.997 - 52.000 mm (2.04713 - 2.04724 in.)
     5	51.994 - 51.997 mm (2.04701 - 2.04712 in.)
     6	51.991 - 51.994 mm (2.04689 - 2.04700 in.)
     7	51.988 - 51.991 mm (2.04678 - 2.04688 in.)
     8	51.985 - 51.988 mm (2.04666 - 2.04677 in.)
     9	51.982 - 51.985 mm (2.04654 - 2.04665 in.)

2. Check cylinder block journal inside diameter according to the following procedures.
   • There are five stamped alphabets (6) (any of "A" through "F") on lower crank case as shown in figure.
   • Those alphabets represent cylinder block journal inside diameter as follows.
     Fig 2: Identifying Cylinder Block Journal Inside Diameter

     Courtesy of SUZUKI OF AMERICA CORP.
   • Determine cylinder block journal inside diameter for journals No. 1 through No. 5 using stamped alphabets and following table.
     CYLINDER BLOCK JOURNAL INSIDE DIAMETER FOR JOURNALS REFERENCE CHART
     
     

     Stamped alphabet	Cylinder block journal in side diameter
     A	56.000 - 56.003 mm (2.20473 - 2.20484 in.)
     B	56.003 - 56.006 mm (2.20485 - 2.20496 in.)
     C	56.006 - 56.009 mm (2.20496 - 2.20507 in.)
     D	56.009 - 56.012 mm (2.20508 - 2.20519 in.)
     E	56.012 - 56.015 mm (2.20520 - 2.20531 in.)
     F	56.015 - 56.018 mm (2.20532 - 2.20543 in.)

3. There are 5 kinds of standard bearings differing in thickness. To distinguish them, they are painted in the following colors at the position as shown in figure.

   Each color indicated the following thickness at the center of bearing.

   Standard size crankshaft main bearing thickness 

   STANDARD SIZE CRANKSHAFT MAIN BEARING THICKNESS SPECIFICATIONS
   
   

   Painted color	Bearing thickness
   Blue	2.011 - 2.014 mm (0.07918 - 0.07929 in)
   Yellow	2.008 - 2.011 mm (0.07906 - 0.07917 in)
   Colorless	2.005 - 2.008 mm (0.07894 - 0.07905 in)
   Black	2.002 - 2.005 mm (0.07882 - 0.07893 in)
   Green	1.999 - 2.002 mm (0.07870 - 0.07881 in)

   Fig 3: Identifying Crankshaft Main Bearing

   Courtesy of SUZUKI OF AMERICA CORP.
4. Select new standard crankshaft bearings using stamped numbers for crankshaft journal diameter, stamped alphabets for cylinder block journal inside diameter and following table.

   Main bearing cross - reference selection table (standard size) 

   MAIN BEARING CROSS - REFERENCE SELECTION TABLE (STANDARD SIZE)
   
   

   			Stamped number on crank web No. 4
   			4	5	6	7	8	9
   Stamped alphabets on lower crank case	A	Upper	Green	Green	Green	Black	Black	Colorless
   		Lower	Green	Green	Black	Black	Colorless	Colorless
   	B	Upper	Green	Green	Black	Black	Colorless	Colorless
   		Lower	Green	Black	Black	Colorless	Colorless	Yellow
   	C	Upper	Green	Black	Black	Colorless	Colorless	Yellow
   		Lower	Black	Black	Colorless	Colorless	Yellow	Yellow
   	D	Upper	Black	Black	Colorless	Colorless	Yellow	Yellow
   		Lower	Black	Colorless	Colorless	Yellow	Yellow	Blue
   	E	Upper	Black	Colorless	Colorless	Yellow	Yellow	Blue
   		Lower	Colorless	Colorless	Yellow	Yellow	Blue	Blue
   	F	Upper	Colorless	Colorless	Yellow	Yellow	Blue	Blue
   		Lower	Colorless	Yellow	Yellow	Blue	Blue	Blue