Pontiac FIREBIRD 1972 Service Manual page 1110

76-72 1972 PONTIAC SERVICE MANUAL
Fig. 7 6 - 1 4 2 Air Checking Converter
CONVERTER
INSPECT
1. Check converter assembly for leaks:
a. Install Leak Test Fixture J 21369 on converter
hub and tighten.
b. Fill converter assembly with 80 psi. of air, sub-
merge in water and check for leaks (Fig. 7G-142).
2. Check converter hub surfaces for signs of scoring or
wear.
3. Check converter assembly end play:
a. Fully release collet end of End Play Tool J
2 137 1-2 by turning its brass nut clockwise.
b. Install collet end of End Play Tool J 21371-2 into
converter hub until it bottoms, then tighten its
brass nut counterclockwise to 5 Ib. ft. torque (Fig.
7G-143).
Fig. 7 6 - 1 4 4 Tightening Hex Nut
c. Install Tool J 2 177 1-3 and, while preventing brass
nut from turning, tighten hex nut to 3 lb. ft.
torque (Fig. 7 0 - 144).
d. Install Dial Indicator J 8001 and set it for "zero",
while its plunger rests on brass nut
e. While holding brass nut stationary, loosen hex
nut, allowing converter internal assembly to
lower, until dial indicator shows that internal as-
sembly has bottomed (Fig. 7 6 - 145).
f. Reading obtained on dial indicator will represent
converter end clearance. If clearance is UNDER
.050", converter is acceptable; if clearance is
.050" or OVER, replace converter.
4. If fluid in the converter has the appearance of having
been mixed with "aluminum paint", the converter is
damaged internally and must be replaced.
NOTE: Do not change the con verter i f a failure
in some other part of the transmission has re-
sulted in the converter containing dark, discol-
ored fluid.
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Fig. 7 6 - 1 4 3 Installing End Play Tool J 2 1 3 7 1 - 2
Fig. 7 6 - 1 4 5 Checking Converter End Play