Pontiac tempest 1968 Service Manual page 191

5A-8 1968 P O N T I A C SERVICE MANUAL
F i g . 5A-9 Removing Locking Ring From Power Piston
2 0 . Maintain pressure on reaction retainer and
position large lock ring down over master cylinder
push rod so that one end of lock ring goes under lug
on power piston raised divider.
NOTE; Lock ring is positioned around power
piston so that it goes alternately over ear of re­
action retainer and under lug of power piston until
end of ring is seated under lug with raised divider.
CAUTION; Make sure that both ends of lock ring
are securely under large lug.
21. Place new front housing seal in center of front
housing so that flat surface of cup lies against bottom
of depression in housing.
22. Install vacuum check valve using new grom­
met if old one is cracked or damaged.
23. Place new power piston bearing in center of
rear housing so that flange on center hole of housing
fits into groove of power piston bearing. Large flange
on power piston bearing will be on stud side of
housing.
F i g . 5A-11 Positioning Power Piston on Support
Plate Remover