Chevrolet 1977 10 Series, Руководство по ремонту, Страница: 396 / 468

7B-16
OVERHAUL MANUAL
Fig. 7 B -2 1 B - ln s ta lla tio n S e q u e n ce - D e te n t Plugs and S p rin g s
Before countershaft is completely installed make sure that
roll pin hole in countershaft is aligned with hole in case.
W hen holes are aligned, tap countershaft into place, remove
tool J-25232 (Fig. 7B-5B).
8. M easure countershaft end play by inserting feeler
gauge between thrust washer and countergear. End play
should be 0.004 to 0.018 inch. If end play exceeds 0.018 inch,
remove gear and replace thrust washers.
9. After correct end play has been obtained, install roll
pin in case.
10. Lower shorter detent spring in detent bore in case
(Fig. 7B-21B). Allow spring to drop into place at bottom of
Second-Third shift rail bore. Insert lower detent plug in
detent bore on top of spring.
11. Install shifter fork shafts in their case bores with the
pivot lug facing up.
NOTE:
Shifter fork shafts are interchangeable.
12. Install (15) roller bearings in clutch shaft bore. Use
vaseline (or equivalent) to hold bearings in place.
CAUTION:
Do not use chassis grease or a similar
"heavy" grease in clutch shaft bore. Heavy grease
will plug the lubricant holes in the shaft and prevent
proper lubrication o f the roller bearing.
13. Install blocking ring on clutch gear and place clutch
gear through top of case and position in front case bore.
14. Install output shaft assembly in case. Be sure First-
Reverse sleeve and gear is in N eutral (centered) position on
hub so gear end of sleeve will clear notch in top of case when
output shaft assembly is installed.
15. Assemble the clutch gear to the output shaft.
16. Move Second-Third sleeve rearw ard to Second gear
position and position Second-Third shifter fork in groove of
sleeve. Be sure setscrew hold in shifter fork is facing up.
NOTE:
Second-Third fork is the smaller of the two
shifter forks.
17. Engage Second-Third shifter fork in shifter fork shaft
and insert Second-Third shift rail through front case bore and
into shifter fork.
NOTE:
Tapered end of rail faces front of case.
18. T urn shift rail until detent notches in rail face bottom
Fig. 7 B - 2 2 B - ln s ta llin g F ro n t B e a rin g
of case. Insert a phillips screwdriver in detent bore to depress
lower detent plug and push shift rail into rear bore. Move rail
inward until detent plug engages forward notch in shift rail
(second gear position).
19. Secure fork to rail with setscrew and move second-
third synchronizer to N eutral (centered) position.
20. Install interlock plug in detent bore. W ith Second-
Third synchronizer in N eutral position, top of plug will be
slightly below surface of First-Reverse shift rail bore.
21. Move first reverse synchronizer forward to first gear
position. Place First-Reverse shifter fork in groove of sleeve.
Be sure setscrew hole in fork is facing up. Rotate fork into
position in case, engage fork in shifter fork shaft, and insert
First-Reverse shift rail through rear case bore and shifter
fork.
22. T urn shift rail until detent notches in rail face
Fig. 7B-23B--lnstalling Rear Bearing
J-24433
T O O L
J - 2 2 6 0 9