CRX L4-1488cc 1.5L SOHC (D15A3) MFI (1987)
3. Measure the clearance between the 26 mm thrust washer and 3rd gear.
4. Measure the clearance between 4th gear and its spacer.
5. If the measurements are within tolerance, and the gears are not worn or damaged, the countershaft need not be disassembled.
6. If any measurements are out of tolerance, figure the additional thickness required to bring each clearance back within service limit. Then reinstall