Trouble Shooting and Repairing Method of Automobile Shock Absorber
Car shock absorbers, as the name suggests is to slow down the car in the driving sense of
vibration, with the professional belongs to is to make the frame and the body vibration quickly
decay, improve the ride comfort and cmfort, car suspension system (suspension system refers to the
body and the tire between the spring and shock absorbers composed of the entire support system)
are generally equipped with shock absorbers, the current widely used in the car is a two-way tube-
type shock absorber. Shock absorbers are used in the process of car wear parts, shock absorber
work is good or bad, will directly affect the smooth running of the car and other parts of the
life, so shock absorbers need to always be in good working condition. So how to test the car shock
absorber is not working properly? The following methods can be used to check the shock absorber
work is good.
Shock absorber failure:
Method 1: The car in the poor road conditions on the road after 10km parking, hand touch
shock absorber shell, if not hot, indicating no resistance inside the shock absorber, shock
absorber does not work. At this point, you can add the appropriate lubricants, and then test, if
the shell heat, the shock absorber internal lack of oil, should add enough oil; otherwise, that
shock absorber failure.
Method 2: Press the bumper, and then release, if the car has 2 to 3 jump, then the shock
absorber work well, otherwise it is not normal work.
Method 3: When the car slow driving and emergency braking, if the car vibration is more
intense, indicating that the shock absorber is not working properly.
Method 4: Remove the shock absorber to its upright, and the lower end of the connection ring
clamp on the vise, forced to pull the vibration pole several times, this time there should be a
stable resistance, pull up the resistance should be greater than the pressure. When the
resistance, such as resistance to instability or no resistance, may be inside the shock absorber
or valve parts damaged, should be repaired or replaced parts.
Automotive shock absorber failure check:
After determining whether the shock absorber has problems or failures, it should first look
at whether the shock absorber has a leak or a traces of old oil spills or phenomena.
Oil seal gasket, sealing gasket rupture damage, storage tank nut nut loose. May be oil seal,
sealing gasket damage failure, should replace the new seal. If still can not eliminate the oil
spill, should pull out the shock absorber, if the severity is not a moment, and then further
check the piston and the cylinder between the gap is too large, shock absorber piston rod with or
without bending, piston rod surface and cylinder Whether the car has a scratch or pull marks.
If the shock absorber does not leak the oil, check the damper connection pin, connecting
rod, connecting hole, rubber bushings, etc. whether there is damage, desoldering, rupture or fall
off. If the above check is normal, you should further break down the shock absorber, check the
piston and cylinder between the mating gap is too large, the cylinder with or without strain, the
valve seal is good, valve and valve seat fit tight, Whether the extension of the spring is too
soft or broken, according to the situation to take grinding or replacement of the way to repair.
Car shock absorber repair:
Finally, the shock absorber in the actual use will be issued a sound failure, which is
mainly due to the shock absorber and the plate spring, frame or shaft collision caused by the
damage or fall off the pad and the shock absorber dust tube deformation , Lack of oil and other
causes, should identify the cause, be repaired. The normal work of the shock absorber can ensure
that we are in the process of driving more smooth forward, so to check the work of the shock
absorber is normal.