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AUTOMATIC TRANSMISSION
21 - 95
(5) Assemble b u s h i n g i n s t a l l e r tools C-4171 a n d
SP-5325 (Fig. 11).
(6) Slide t h e n e w b u s h i n g onto i n s t a l l e r tool SP-
5325.
(7) Position the reaction shaft support u p r i g h t on a
clean smooth surface.
(8) A l i g n t h e b u s h i n g i n t h e bore. T h e n t a p t h e
bushing i n t o place i n s t a l l e r tool SP-5325 bottoms.:
(9) Clean reaction t h e shaft support t h o r o u g h l y af-
ter i n s t a l l i n g the b u s h i n g .
Bushing—A-998/999
ASSEMBLING
OIL PUMP AND
REACTION
SHAFT
SUPPORT-A-998/999
(1) Lubricate t h e p u m p gears w i t h transmission
fluid
and i n s t a l l t h e m i n the p u m p body.
(2) I n s t a l l a n e w t h r u s t washer a n d seal rings on
the reaction shaft support. Lubricate t h e washer and
seal rings w i t h transmission
fluid.
(3) Place t h e reaction shaft support i n assembly
tool C-3759. T h e shaft h u b and assembly tool should
be positioned on a clean smooth w o r k surface.
(4) Thread t w o p i l o t s t u d tools C-3283-A into t h e
threaded holes o f the reaction shaft support
flange
(Fig. 12).
'
(5) A l i g n and lower t h e p u m p body onto t h e pilot
studs (Fig. 12).
(6) Insert a l i g n i n g tool C-3756 t h r o u g h t h e pump
body and engage the p u m p i n n e r gear.
(7) Rotate t h e p u m p gears w i t h t h e tool to center
t h e m i n the p u m p body.
(8) T i g h t e n t h e c l a m p i n g tool securely when t h e
gears are centered
a n d t h e p u m p body is
firmly
seated against the reaction shaft support.
(9) T u r n the assembly tool, p u m p a n d support over.
T h e n i n s t a l l and t i g h t e n the support-to-pump bolts to
20 N*m (175 in-lbs) torque.
(10) Remove the assembly tool f r o m t h e pump and
support.
(11) I n s t a l l a new p u m p seal w i t h t o o l C-4193 and
handle C-4171. Be sure t h e seal l i p faces i n w a r d .
(12) I n s t a l l a n e w O-ring o n t h e pump body ( F i g .
6).
(13) Lubricate the O-ring and the l i p o f the p u m p
seal w i t h transmission fluid o r petroleum j e l l y .
(14) Set the assembled p u m p and support aside f o r
assembly i n s t a l l a t i o n .
P U M P G E A R S
RH283
Fig. 12 Assembling Oil Pump And Reaction Shaft
Support—A-998/999
OIL PUMP AND REACTION SHAFT SUPPORT-A-
727
PUMP AND SUPPORT
DISASSEMBLY
(1) Remove the support bolts and separate the sup-
port and pump body (Fig. 13).
(2) Remove the O-ring seal f r o m the pump body.
(3) Remove the p u m p seal w i t h a b l u n t punch.
(4) M a r k t h e p u m p gears for assembly reference
and remove the gears.
(5) Remove the seal rings and t h r u s t washer f r o m
the reaction shaft support (Fig. 13).
(6) Clean t h e p u m p and support components
w i t h
solvent and d r y t h e m w i t h compressed air.
INSPECTING
PUMP AND SUPPORT
Inspect the p u m p and support components. Replace
the p u m p or support i f the seal r i n g grooves or ma-
chined surfaces are w o r n , scored, p i t t e d , or damaged.
Replace the p u m p gears i f p i t t e d , w o r n chipped, or
damaged. Inspect t h e No. 1 t h r u s t washer. Replace
the washer i f w o r n or damaged.
Replace t h e p u m p bushing and t h e reaction shaft
support b u s h i n g d u r i n g overhaul. Do n o t reuse t h e
o r i g i n a l bushings even i f they look O K .
I n s t a l l t h e gears i n t h e p u m p body and measure
end clearance w i t h a feeler gauge and
straightedge
(Fig. 7). Clearance should be .025 - .076 m m (.001 -
.003 i n ) .
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