Diesel Data: Automotive Repair

Countershaft Assembly Clearance Inspection

Countershaft Assembly Clearance Inspection
1. Measure the clearance between the 1st gear (A) and the countershaft (B) with a feeler gauge (C). If the clearance is more than the service limit, go to step 2.





2. Measure the thickness of the 1st gear.
^ If the thickness is less than the service limit, replace 1st gear.
^ If the thickness is within the service limit, replace the 1st/2nd synchro hub.





3. Measure the clearance between the 2nd gear (A) and 3rd gear (B) with a feeler gauge (C). If the clearance is more than the service limit, go to step 4.





4. Measure the thickness of the distance collar.
^ If the thickness is less than the service limit, replace the distance collar.
^ If the thickness is within the service limit, go to step 5.





5. Measure the thickness of the 2nd gear.
^ If the thickness is less than the service limit, replace 2nd gear.
^ If the thickness is within the service limit, replace the 1st/2nd synchro hub.