UNDERSIZE Bearings
- 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.
- 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.
- 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.
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 |