It is under considerable tension.
(d) If damage is evident to block spring (25) or spring retainers, use an arbor press to
remove retaining ring (24). Using a plug 1-3/4 in. dia, compress block spring (25) until all tension is
removed from retaining ring (24). Using truarc pliers, remove retaining ring (24) and gradually release
arbor press until block spring (25) is fully extended. Remove outer spring block (26), block spring (25),
and inner spring retainer (27) from cylinder block assembly (23).
(17) From the high side
cam, remove two
capscrews (22, fig. 3-71), two lock tabs (21),
clip (20), bearing plate (19), and two spacers (18). Inspect bearing plate (19). If wear patterns can be
felt, disassemble the other spacer assembly and replace both bearing plates (19).
(18) Lift out return plate (17) and pistons (16). (Refer
to fig. 3-72.)
either pistons (16), or return plate (17), remove pistons from return plate (17).
Figure 3-71. Removing Pistons and Return Plate.