1942 - 1947 CHEVROLET SHOP MANUAL
Section 2 - Frame
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2-13 |
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NOTE—Operation 5 is important
as this provides expansion space for the fluid inside the shock
absorber body. |
are not serviceable. Other parts
may be serviced as follows:
1. Disconnect link at
axle.
2. Remove mounting bolts and remove shock
absorber from
car.
3. Clean shock absorber thoroughly and drain
fluid.
CAUTION—If shock absorber is to
be serviced removed from car, do not clamp the unit in a vise as pressure
on the body may partially collapse the cylinder and cause the piston
to bind. Always bolt the shock absorber to a holding
fixture.
TO CHANGE RELIEF VALVE ONLY
Single-Acting Type
1. Remove valve nut using a heavy screwdriver,
preferably offset
type.
2. Remove relief valve, using a small hooked
tool or bent wire as shown in
Fig. 18.
3. Insert new relief valve and replace valve
nut, using a new
gasket. |
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COMPRESSION VALVE
NUT |
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Fig. 19—Filling Passenger Car Rear Shock
Absorber
To Fill Double-Acting Shock
Absorbers (All Types) While on Car
1. Clean all dirt from around filler
plug.
2. Remove filler plug, Fig.
9.
3. Fill to capacity with G.M. Shock Insulating
fluid.
4. Work arm up and down by bouncing car while
adding fluid, or disconnect link
at axle and operate arm as
shown in Fig. 19, while filling.
CAUTION-Shock absorber must not
be filled completely full. Approximately 10% air space must be provided as
over-filling may result in blowing the cover gasket out. After filling to
capacity, extract a quantity of fluid equal to 10% of the amount the shock
absorber will hold.
5. Replace filler plug, using new
gasket.
REPLACEMENT OF SHOCK ABSORBER
PARTS
Because of special equipment
needed for complete disassembly and assembly of shock absorbers, the
body, arm, packing glands, camshaft and cam |
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Fig. 20—Removing Valve Nut
Double-Acting Parallel
Cylinder Type
1. Remove valve nut as shown in Fig.
20.
2. Remove relief valve.
3. Insert new relief valve and replace valve
nut, using a new
gasket.
Double-Acting Opposed, Internal Valve Type
1. Remove shock absorber from
car.
2. Remove dirt, grease and loose paint from
outside of shock
absorber. |
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