Note: To accurately adjust the shift rod, a special tool is required (Renault B.Vi. 1133).
1. Set the handbrake, then jack up the front of the car and place it on axle stands.
2. Loosen the mounting screws and remove the protective cover from the transmission base.
3. Select 1st gear on the transmission by moving its operating lever and the corresponding position. To lock the transmission lever, install the Renault B.Vi. 1133 tool as shown (refer to the accompanying illustration). If you don't have a special tool, make a suitable replacement from a flat metal rod or a wooden block.
4. Using a feeler gauge, check that the gap (Y) between the reverse gear lock ring on the gear shift lever and the inclined edge on the right side of the gear shift lever housing is 3 mm (refer to the accompanying illustration).
5. If adjustment is necessary, unhook the return spring from the end of the linkage facing the gearshift lever, then loosen the pinch bolt on the opposite end of the linkage so that the linkage can move.
6. Move the gearshift lever until the reverse gear lock ring touches the inclined edge on the casing, then insert a 3 mm thick feeler gauge between the ring and the edge. Lock the lever in this position and tighten the clamping bolt to the specified value Specifications effort.
7. Remove the locking tool, then install the return spring and recheck the clearance as described in paragraph 4.
8. Make sure the gearshift lever moves easily into each position, then install the protective cover and lower the car onto its wheels.