Input Shaft Inspection
Input Shaft InspectionReference: Input Shaft Disassembly and Assembly: H27 Engine Model
^ Check Clearance "a" between synchronizer ring and gear, width of index protrusion "b" in synchronizer ring, key slot width "c" in high speed synchronizer hub and each chamfered tooth of gear and synchronizer ring and replace with new one, if necessary. Also, check gear tooth.
Clearance "a" between synchronizer ring and gear (input shaft)
Standard: 0.7 - 1.7 mm (0.028 - 0.067 inch)
Service limit: 0.5 mm (0.020 inch)
Width of index protrusion "b" (input shaft)
Standard: 3.9 - 4.1 mm (0.154 - 0.161 inch)
Service limit: 3.6 mm (0.142 inch)
Key slot width "c" (high speed synchronizer hub)
Standard: 8.0 - 8.1 mm (0.315 - 0.319 inch)