<VV> Fwd: Rear coil springs
BobHelt at aol.com
BobHelt at aol.com
Sun Mar 23 22:55:15 EDT 2008
In a message dated 3/23/2008 7:47:16 PM US Mountain Standard Time, BobHelt
writes:
In a message dated 3/23/2008 12:53:03 PM US Mountain Standard Time,
rangerdan_505 at yahoo.com writes:
My '61 Monza wore the rear tires to the cords on the
inside of the tire. The center and outer tire still
has lots of tread on them. The inner tread (what was
left of it) wore in a cupped pattern. Can this be
caused by worn rear springs? And if so, can spring
spacers help the problem. I am reasonably sure that
the wear is happening on the rear, but I have rotated
tires in the 10 years that I have owned the car. It
only gets driven to cruise ins, and CORSA events.
Thanks for everyone's input,
Dan
Dan,
Inside wear like that is normally caused by too much negative camber. So
first go park in a large level parking lot so that you can walk around the car
from a distance of about 30 feet. Now walk around the car and eyeball the
tires. The rears should both be either perfectly vertical or slightly tilted so
that the tops are closer together than the bottoms. If not you need to find
out why. Could be weak rear springs. Or could be worn or loose suspension parts
But get it checked. The fronts, too, should be perfectly vertical or tilted
slightly with the tops of the tires closer together than the bottoms when
pointed straight ahead.
If none of that works out, drive about 30 mph with some friend following
about three car lengths behind. Have him watch how your rear tires react when
you then rapidly accelerate to 50-60. The tires should remain vertical as
before.
Cupping is normally caused by an unbalanced tire or bad shocks.
Regards,
Bob Helt
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