Occurrence abnormal knocking of the batholith when drive a vehicle accompanies directional sideslip, believe the very much person that raise a car has encountered this kind of problem. Do a fixed position simply to be able to be solved commonly. But this today's case tormented a car however advocate good period of time, check repeatedly also did not find the root cause of illness or trouble. Final course disassembles meticulously, we discover nitty-gritty, also solved long-term worry car thoroughly advocate abnormal knocking and sideslip problem. Car advocate know to frighten an a suit cold sweat, be what breakdown can affect so serious consequence after all?
30 seconds fast read content of full text key:
1, the important part that the function that controls an arm is join deputy frame and wheel.
2, control arm glue is covered rupture, will bring about a wheel to swing, accompany bumpy abnormal knocking.
3, before the examination, tighten bolt of solid deputy frame, avoid bolt to shake the abnormal knocking that bring about.
4, the abnormal knocking of stable lever lining produces similar problem easily also.
One, the function that controls an arm
Control arm basically is in charge of the join between deputy frame and wheel, it bore the weight of next jumpy load on the wheel. Maintain a wheel to stabilize the movement of the balance. It is front suspension main component component, the model that also is suspension of the independence before Mai Fuxun type forms a part.
2, the common breakdown appearance that controls an arm
1, the front suspension when travel appears " cluck clucks " metallic clash.
2, the front suspension when travel appears " Zhi creaks " balata attrition sound.
3, sideslip of the car when travel, four-wheel fixed position cannot exact mix whole wheel.
4, the wheel is unusual wear away, existence eats an embryo to gnaw fetal problem.
3, encounter above trouble, what should we do first
1, bolt of close solid deputy frame
Deputy frame bolt is the effect that has deputy frame and automobile body join to secure, its become loose, bring about deputy frame to be when travel not only rock, still can cause control arm to become loose, produce abnormal knocking thereby, also become loose because of bolt, be maintained very easily greatly by maintenance shop small issue. It is so when the problem that encounters chassis abnormal knocking, we should undertake tightening solid to deputy frame bolt above all.
2, the close firm moment of force of deputy frame bolt
To the close firm moment of force of deputy frame bolt, want control to fluctuate in 120-130N.m commonly, want to have careful close firm to controlling two bolt of the arm especially. Avoid the bumpy abnormal knocking that become loose because of bolt and brings about.
4, typical case
Can see from inside the graph, main reason controls the chassis abnormal knocking with this long-term vehicle and car sideslip namely hind and fixed glue of the arm is covered appeared serious rupturing, controlled an arm to produce gap not only, and the rock that controls an arm also can bring about wheel existence left and right sides to swing problem.
[glue covers the influence that rupture]
Controlling arm and deputy frame join is to use balata glue to cover have link, can have amortize effect not only, still can decrease brace up fall a confusion of voices. And the addition as use time, glue is covered appear control arm will be brought about after rupturing cannot accurate and fixed, produce rock thereby. So subsequently and come namely the wheel appears swing. In high speed travel, if the wheel places momentum too big, drive a vehicle of will great influence is safe.
[new old contrast]
Anew old will look on condition, see apparently, old glue is covered had ruptured serious, the fixed bearing pin among already from originally positional change goes. If not be a car advocate long-term the city zone is slow fast travel, consequence is unimaginable.
5, what breakdown and control arm attaint are similar
1, an attrition of stable lever lining, clearance, when will bringing about drive a vehicle, appear " Zhi, cluck clucks " wait for abnormal knocking, with control brachial lining damages abnormal knocking is similar.
2, head of ball of stable lever connecting rod wears away, generation gap, also will bring about abnormal knocking of cluck of front suspension occurrence cluck.
3, the abnormal knocking that idle stroke of shock absorber existence brings about.
Write finally:
Chassis abnormal knocking is the breakdown appearance that we raise car middling to see daily, but as a result of the car advocate origin of abnormal knocking of very difficult judgement, so that arrived,maintenance shop is partitioned by others at will. Now the consequence that the attaint place that this case of the day let everybody very well understand control arm glue to cover brings, how to if you mastered,examine abnormal knocking, can avoid probably to jump into the hole that maintains inn, did you learn?
