Diesel Data: Automotive Repair

Inspection of Counter Gear




1. INSPECT COUNTER 5TH GEAR OIL CLEARANCE
a. Install the spacer, counter 5th gear and needle roller bearing to counter gear.
b. Using a dial indicator, measure the counter 5th gear oil clearance.

Standard clearance: 0.009 - 0.062 mm (0.0004 - 0.0024 in.)
Maximum clearance: 0.15 mm (0.0059 in.)

If the clearance exceeds the maximum, replace the counter gear or needle roller bearing or counter 5th gear.




2. INSPECT COUNTER GEAR
Using a micrometer, measure the outer diameter of the counter shaft journal.

Minimum diameter:
Part A 26.835 mm (1.0564 in.)
Part B 29.81 mm (1.1736 in.)

3. INSPECT SYNCHRONIZER RINGS




a. Check for wear or damage.
b. Turn the ring and push it in to check the braking action.




c. Using a feeler gauge, measure the clearance between the synchronizer ring back and the gear spline end.

Standard clearance: 0.7 - 1.17 mm (0.028 - 0.067 in.)
Minimum clearance: 0.5 mm (0.020 in.)

If the clearance is less than the minimum, replace the synchronizer ring.




4. MEASURE CLEARANCE OF SHIFT FORKS AND HUB SLEEVES
Using a feeler gauge, measure the clearance between the hub sleeve and shift fork.

Maximum clearance: 1.0 mm (0.039 in.)

If the clearance exceeds the limit, replace the shift fork or hub sleeve.