Assembly Of Shock Absorbers - Plymouth Pl4S Service Manual

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SHOCK ABSORBERS
173
CAUTION
Do not hold the shock absorber
cylinder is a vise when removing
the valve because of danger of
squeezing the thin wall of cylin-
der out-of-round.
The valve assembly cannot be disassembled
for replacement of parts. If the shock ab-
sorber is being inspected because of a chuckle
at low speeds on smooth pavement, replace
this valve with a new one.
( 6) Discard the liquid frpm the cylin-
~er.
Then grip the sides of the eye, on the
end, in a vise with the open end of the shell
up.
( 7) Push the cylinder down in the dust
shield and remove the nut and spring from
the piston rod. Pull the cylinder and seal
assembly up off the piston rod and shake
the loose washers and piston out of the cyl-
inder. Do not force the cylinder up and off
the piston rod if the washers catch in the
threads on the piston rod. If they should
catch ·and prevent the cylinder leaving the
piston rod easily, shake the cylinder a little
up and down and rotate it a few times to
move the washers into alignment so the cyl-
inder can be lifted off easily. Individual parts
of the piston rod oil seal and bushing assem-
bly·are not available for replacement; there-
fore the entire assembly should be replaced,
if necessary. It is a light press fit in the cyl-
inder tube and may be removed with a
wooden or hollow drift.
(8) Wash all parts in naphtha or sim-
ilar cleaner and dry them with compressed
air. Do not wipe dry with a cloth because lint
clinging to the parts may cause poor valve
seating which in turn will cause improper
performance.
IMPORTANT
Rigid precautions must be taken
for cleanliness all during the serv-
icing of shock absorbers.
1-Dust shield tube and
piston rod
2-Compression valve
3-Wedge shaped tool
4-Cylinder tube
Figure 5-Removing Compression Valve from
Cylinder (!937-42 Models!'
( 9) Place all parts on a clean paper
and inspect each piece. Check the piston to
see that it is free from nicks. Measure the
outside diameter of the piston. If it is worn
more than .003 inch out-of-round, it should
be replaced.
( 10) Check the rebound valve spring
seat ( 16, fig. 2). It should be flat and not
distorted. All washers should be flat and free
of burrs.
5. ASSEMBLY OF SHOCK ABSORBER.
1937-42-After all internal parts have
been cleaned and inspected, wipe or blow out
the inside of the dust shield. Then proceed
as follows:
( 1 ) Press the rod guide and seal as-
sembly into the cylinder.
CAUTION
Do not press against the steel re-
tainer of the rod guide and seal
assembly. Press only on the large
threaded housing.