Assembling Output Shaft and Layshaft to Centre Plate

Assembling Output Shaft And Layshaft To Centre Plate

1. Secure centre plate to suitable workstand.
2. Fit selected shims and bearing tracks.
3. Fit lower detent ball and spring, use a dummy bar to temporarily hold the ball in place.







4. Check both synchromesh units are in neutral and fit selector shaft assembly to output shaft.
5. Fit output shaft and selectors as complete unit to centre plate aligning pin with slot in plate.

CAUTION: Take care that as dummy shaft is removed, detent spring and ball are not displaced.

6. Fit 4th gear synchromesh baulk ring.







7. Fit layshaft whilst lifting output shaft to clear layshaft rear bearing.
8. Lubricate pilot bearing with gearbox oil and fit input shaft.







NOTE: Early type from cover illustrated.

9. Fit new oil seal to front cover. Ensure seal is fitted down to shoulder. Apply sealant, Part No. STC 3254 to front cover as shown.

CAUTION: Oil seal must be fitted dry.

10. Fit input and layshaft bearing tracks in front cover.
11. Apply Loctite 290 to threads of front cover bolts, fit bolts and tighten by diagonal selection to 25 Nm (18 ft. lbs.).
12. Apply sealant, Part No. STC 3254 to centre plate and fit main casing to centre plate.
13. Bolt casing and centre plate together using 2 off 8 x 35 slave bolts.
14. Lubricate a new '0' ring with gearbox oil and fit to interlock spool retainer.
15. Fit interlock spool retainer, fit bolt and tighten to 8 Nm (6 ft. lbs.).
16. Remove casing from stand and clamp in vice.