FE290 ENGINE
Cylinder Block
2000 FE290 Gasoline Vehicle Maintenance and Service Supplement Page 13-29
13
• The standard bore diameter is 3.0700 - 3.0708 inches (77.980 - 78.000 mm).
• The maximum cylinder bore diameter wear limit is 3.0735 inches (78.067 mm).
• The maximum acceptable out of round cylinder bore is 0.0022 inch (0.056 mm).
3. If the cylinder bore is not within these measurements, the cylinder bore will need to be resized.
To Resize Bore to Next Oversize
Always resize the bore to exactly 0.010 inch (0.25 mm) or to exactly 0.020 inch (0.50 mm) over standard size.
1. When the bore is resized to 0.010 inch over standard size, the new bore dimension is 3.0791 - 3.0799
inches (78.210 - 78.230 mm). When the bore is resized to 0.020 inch over standard size, the new bore
dimension is 3.0890 - 3.0898 inches (78.460 - 78.480 mm). See Specifications for Resizing Cylinder
Bore Table, Page 13-50
.
2. Hone the cylinder that is to be 0.010 inch over standard size so that the final bore size diameter is
3.0799 - 3.0807 inches (78.230 - 78.250 mm). The final honed bore diameter for a 0.020 inch over
standard size bore is 3.0898 - 3.0906 inches (78.480 - 78.500 mm). See Specification for Resizing
Cylinder Bore, Page 13-50. See following NOTE.
3. After honing, clean the cylinder wall thoroughly using soap, warm water and clean rags.
4. Dry the cylinder and coat with engine oil.
Figure 13-59 Measure Cylinder Bore
Figure 13-60 Hone Cylinder
• ALLOW FOR SHRINKAGE (FROM THE FINAL SIZE) OF 0.0003 - 0.0004 INCH (0.0076 - 0.0102
MM) WHICH WILL OCCUR WHEN THE CYLINDER COOLS DOWN.
• IMPORTANT: THE CYLINDER WALL FINISH SHOULD HAVE A 40° TO 60° CROSS-HATCH
PATTERN (FIGURE 13-60, PAGE 13-30).
• DO NOT USE SOLVENTS OR GASOLINE TO CLEAN CYLINDER AFTER HONING.
1
2
3
Measure each level
in bore at 2 places
90
°
apart.
3
1
3
1
HONING
TOOL
NOTE
NOTE