Chevrolet 1980 Light Duty Truck Service Manual page 223

All of the preceding diagnosis will generally apply to tilt columns. The following is supplied in
addition to and specifically for tilt columns.
HOUSING SCRAPING ON BOWL
Cause
A. Bowl bent or not concentric with hub.
STEERING WHEEL LOOSE
Cause
A. Excessive clearance between holes in support or housing
and pivot pin diameters.
B. Defective or missing anti-lash spring in spheres.
C. Upper bearing seat not seating in bearing.
D. Upper bearing inner race seat missing.
F. Loose support screws.
G. Bearing preload spring missing or broken.
STEERING WHEEL LOOSE EV E R Y OTHER
T IL T POSITION
Cause
A. Loose fit between shoe and shoe pivot pin.
NOISE WHEN T IL T IN G COLUMN
Cause
A. Upper tilt bumper worn.
B. Tilt spring rubbing in housing.
STEERING COLUMN N O T LOCKING IN
A N Y T IL T POSITION
Cause
A. Shoe seized on its pivot pin. ivot pin.
B. Shoe grooves may have burrs or dirt.
Shoe lock spring weak or broken.
C.
STEERING W HEEL FA IL S TO RETURN
TO TOP T IL T POSITION
Cause
A. Pivot pins are bound up.
B. Wheel tilt spring is defective.
C.
Turn signal switch wires too tight.
TILT COLUMNS
GENERAL INFORMATION
Solution
A. Replace bowl.
Solution
A. Replace either or both.
B. Add spring or replace both.
C.
Replace both.
D. Install seat.
F. Tighten to 6 0 in. lbs.
G. Replace preload spring.
Solution
A. Replace both.
Solution
A. Replace tilt bumper.
B. Lubricate.
Solution
A. Replace shoe and-pivot pin.
B. Replace shoe.
C. Replace lock spring.
Solution
A. Replace pivot pins.
B. Replace tilt spring.
C. Reposition wires.
Fig. 3 B 4 -8 --T ilt Colum n Diagnosis
STEERING CO LUM NS
LIG H T T R U C K S ER V ICE MANUAL
3B4-9