Table of Contents
Advertisement
21 - 128
AUTOMATIC TRANSMISSION
(8) M a k e sure the a l i g n m e n t tool i s i n s t a l l e d i n t h e
gear t r a i n . T h e n i n v e r t t h e gear t r a i n a n d slip t h e
case over o u t p u t shaft.
(9) E x p a n d t h e b e a r i n g snap r i n g a n d slide the case
downward u n t i l t h e snap r i n g locks i n t h e bearing
groove. Release t h e snap r i n g .
(10) I n s t a l l t h e gasket a n d access plate a t t h e u n -
derside o f the case.
(11) I n s t a l l t h e overdrive clutch components as fol-
lows:
(a) I n s t a l l the flat r i n g (Fig. 46) followed b y the
wave r i n g (Fig. 7). T h e r i n g s fit i n t h e same r i n g
groove. Use a large screwdriver t o seat each r i n g .
(b) I n s t a l l t h e reaction plate (Fig. 31).
(c) I n s t a l l a c l u t c h disc followed b y a c l u t c h
plate u n t i l the r e q u i r e d n u m b e r o f discs and plates
have been installed. A-500 requires three discs. A -
518 requires 4 discs for standard engine applica-
tions and five discs for diesel engine applications.
(d) I n s t a l l t h e pressure plate ( F i g . 47). T h e
pressure plate is t h e thickest plate i n t h e clutch
pack.
(12) M o u n t t h e overdrive u n i t i n a vise i n a v e r t i -
cal position.
(13)
Determine
t h e proper
intermediate
shaft
spacer thickness as follows:
(a) I n s e r t tool C-6312 t h r o u g h the s u n gear. Be
sure t h e tool bottoms against t h e carrier spline
shoulder.
(b) Position tool C-6311 across t h e face o f t h e
overdrive case (Fig. 48).
(c) Position d i a l caliper C-4962 over tool C-6311
and measure distance t o t h e top o f tool C-6312
(Fig. 48).
(d) Select t h e proper thickness end play spacer
from t h e c h a r t ( F i g . 49) based o n distance mea-
sured.
Fig. 48 Intermediate Shaft Spacer Measurement
(14) Determine t h e proper thickness t h r u s t plate
for the overdrive piston as follows:
•
Moasuramonfls
(Inches)
Spacer
Part Number
Spocw Tfucknoss
(Inches)
.7336-.7505
.7506-7675
.7676-7855
.7856-.8011
4431916
4431917
4431918
4431919
.159-. 158
.176-.175
.194-. 193
.212-.211
Fig. 50 Overdrive Piston Thrust Plate Measurement
OVERDRIVE UNIT INSTALLATION
(1) Before i n s t a l l i n g t h e overdrive u n i t , i t w i l l be
necessary t o t r i m t h e new case gasket t o size. U s i n g
a sharp k n i f e , cut out t h e old gasket around t h e pis-
t o n (Fig. 52). T h e n remove and place t h e old gasket
on t h e n e w gasket for a template and t r i m t h e new
gasket to fit.
(2) Place t h e new gasket on t h e overdrive case.
(3) I n s t a l l t h e selective spacer on t h e intermediate
shaft. T h e spacer goes i n t h e groove j u s t r e a r w a r d o f
the shaft rear splines (Fig. 53).
(4) I n s t a l l t h e overdrive piston t h r u s t plate on t h e
piston h u b . Use petroleum j e l l y t o hold the plate i n
position.
(5) I n s t a l l t h e t h r u s t bearing i n t h e s l i d i n g h u b .
Use p e t r o l e u m j e l l y to hold the bearing i n position.
Fig. 49 Intermediate Shaft Selective Spacer Chart
(a) Position Tool C-6311 across t h e face o f t h e
overdrive case (Fig. 50).
(b) Position d i a l caliper C-4962 over tool C-
6311 (Fig. 50).
(c) Measure distance to the s l i d i n g h u b b e a r i n g
seat a t four points 90 degrees apart. Average t h e
measurements
b y adding t h e m a n d d i v i d i n g b y
four.
(d) Select t h e required t h r u s t plate f r o m t h e
chart (Fig. 51).
Advertisement
Table of Contents
