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UNDERSIZE Bearings

WARNING: This page is about a different car, the 1992 Suzuki Swift, 1992 Suzuki Sidekick, and 1992 Suzuki Samurai. However, it is still accessible from the selected car via links, so may be relevant.
  1. Bearings are available in .010" (.25 mm) undersize. See Fig 1 . Undersize bearing thickness is determined by 2 color marks. See COLOR CODE FOR UNDERSIZE BEARINGS  table.
  2. Use journal finished diameters, 1.7612-1.7618" (44.732-44.750 mm), and letters stamped on cylinder block mating surface to determine correct undersize bearing for replacement. See appropriate UNDERSIZE BEARING APPLICATION table.
  3. Use Plastigage method to ensure correct clearance of installed undersize bearing. Lubricate bearings before installing. Tighten bolts to specification in 3 steps. Tighten main bearing caps in following order: center cap, No. 2 cap, No. 4 cap, front cap and rear cap. See TORQUE SPECIFICATIONS  table.
Fig 1: Identifying Undersize Main Bearing Color Marks
G81639Courtesy of SUZUKI OF AMERICA CORP.
COLOR CODE FOR UNDERSIZE BEARINGS

Color Painted Thickness: In. (mm)
Black & Red .0836-.0837 (2.124-2.128)
Blue & Red .0839-.0840 (2.134-2.137)
Green & Red .0835-.0836 (2.121-2.124)
Red Only .0837-.0838 (2.128-2.131)
Yellow & Red .0838-.0839 (2.131-2.134)
UNDERSIZE BEARING APPLICATION (1.3L SOHC)

Measured Journal Diameter - In. (mm) Letter Stamped On Block ID/ Color
1.7616-1.7618 (44.744-44.750) "A" Green & Red
1.7616-1.7618 (44.744-44.750) "B" Black & Red
1.7616-1.7618 (44.744-44.750) "C" Red Only
1.7614-1.7616 (44.738-44.744) "A" Black & Red
1.7614-1.7616 (44.738-44.744) "B" Red Only
1.7614-1.7616 (44.738-44.744) "C" Yellow & Red
1.7612-1.7614 (44.732-44.78) "A" Red Only
1.7612-1.7614 (44.732-44.78) "B" Yellow & Red
1.7612-1.7614 (44.732-44.78) "C" Blue & Red
UNDERSIZE BEARING APPLICATION (1.6L)

Measured Journal Diameter - In. (mm) Letter Stamped On Block ID/ Color
2.0371-2.0373 (51.744-51.750) "A" Green & Red
2.0371-2.0373 (51.744-51.750) "B" Black & Red
2.0371-2.0373 (51.744-51.750) "C" Red Only
2.0369-2.0371 (51.738-51.744) "A" Black & Red
2.0369-2.0371 (51.738-51.744) "B" Red Only
2.0369-2.0371 (51.738-51.744) "C" Yellow & Red
2.0367-2.0369 (51.732-51.78) "A" Red Only
2.0367-2.0369 (51.732-51.78) "B" Yellow & Red
2.0367-2.0369 (51.732-51.78) "C" Blue & Red