Excuse me to look for picture of a government to make a plan, because maintenance time forgets,patted. This is leave factory 13 years run quickly GLK, at present the kilometer number of travel is 127000 kilometers. When sailing, car always is to give out all right " click clicks " abnormal knocking. And be when rotate speed is elevatory, this kind of abnormal knocking is met as speed elevatory and elevatory.
After receiving car, undertake checking to car, discovering abnormal knocking is exceedingly serious really. Litre of machine is lifted to make discover after the examination on, the output cross axle of 4 drive system is put in huge casing amount.
Because this casing measures consist in cross axle above, also mean this cross axle to be hanged. Cross axle arrives one case with transmission shaft conformity, want complete settlement drops this issue, must undertake changing to transmission shaft. The word does not say more, begin to operate. The thing that need disassembles is not little, I use a machine of vertical to be able to help me quickly pull down this transmission shaft.
This piece of graph can show clearly run quickly of the 4 drive structure of GLK and engine decorate a form, GLK used full-time the structure of 4 drive. Central difference fast implement use yes multichip the bounds of clutch type slips poor fast implement, the torque that uses the rear axle before the means that the electron is restricted to slip will come true exports way, also be the central difference that a lot of city SUV use now fast implement means. A that of besmear red transmission shaft that is front-wheel drive, the transmission shaft that is this red provides power to front-wheel drive, what we should change is this axis.
This angle basically looks not to come out this transmission shaft has any injury, but when turning, this transmission shaft can give out tremendous noise. You can see before this is front-wheel drive difference fast implement input end, should disassemble it is not easy. The angle of installation has a few artful, should transmission shaft upper part with 3 yuan of catalysis implement with adiabatic fender completely pull down.
Output direction comes from at gear-box interior, be from hind forward output momentum. In-house auxiliary transmission and gear-box are rectify and arrived one case, it is so above naked eye, can seeing this take-off only is to come from at gear-box interior.
The needs to change namely transmission shaft of this yellow in the graph, intuitionistic and clear.
Exhaust also is same, this checkpost is tightened on the bolt that uses E13. Because of what be in automobile body all the time the bottommest the reason because of high temperature, bring about it what to have hardly anticorrosive technology. When disassemble, must take care exceedingly, be exceedingly easy and broken really, this bolt has not known to let my to twist off how many. So my summary gave an experience, it is to prevent bolt broken with the aspect that dismantles no less than coming, the agent had better become loose on half hours of gush ahead of schedule.
Be disassembled to issue the exhaust that come, the sensor distance of the oxygen after oxygen is mixed before is exceedingly close, show 3 yuan of catalysis implement metal of in-house pottery and porcelain is not very big, running quickly is to have hope exceedingly really to oneself. See oxygen sends the sample of feeling nevertheless, I look to be able to conclude this oxygen sensor is to just had been changed before long, because be too new really.
The twist with disassembled unusual distance, because the bolt of this transmission shaft is in engine all the time most lower part, long-term seeper brings about it to become rusty dead. Have 4 short bolt only, I was torn open full of a hour long. Bolt still was torn open two by me, must turn with what buckle instead finally the head crumbs broken bolt reassume comes out.
Expended a tremedous effort, it is eventually tear open transmission shaft debus to come. New transmission shaft arrived early, not be former plant nevertheless, be a deputy factory. Because the client's budget is limited, after the course is communicated, the client decides to use deputy plant undertake installing, main reason or former plant be too expensive really.
The interior of transmission shaft is hollow, can reduce automobile body weight effectively so, improve the efficiency of engine. Still have even if the transmission shaft tenacity that hollow transmission shaft wants to compare sincere and hardness are tall get more much, a punty, when we want to break off it, it can produce deformation, the fluctuation that deformation is the biggest is it two surfaces, exterior manifestation is gravitation on. Next surfaces squash each other, expression is repulsion. Central part deformation is the smallest, shown strength is the smallest also, the smallest to the tenacity contribution of punty, although impact of central part take out is not big also, but not was to say central part punty is more solid. So same section area, defy a turn no matter or fight twisting intensity is hollow canal certainly stronger than sincere canal.
Be disassembled to issue the transmission shaft that come, below normal circumstance, should not see this gap, can see this gap apparently now. Those who explain clearance has been to comparative is big, it is the abnormal knocking that this clearance brings about. Can see this transmission shaft exists without the oil stains of a bit, still can see the mark after a few high temperature. The grease that long movement can bring about transmission shaft is missing, should lose overmuch when, this transmission shaft is met high temperature. The mechanical component of mutual attrition did not have grease, have more than is needed how long, mechanical component is hanged. Our daily attention brings about this not in time, a lot of people drop the issue that this cross axle maintains to meeting oversight.
This graph can be revealed very well after all was where to appear to wear away, the directive of arrowhead is in even if the clearance of cross axle is in. Need grease comes to the face to lubricate here, once lost grease,be equal to dry ground. This cross axle is done not have broken, it is a good fortune really.
What huge gap brings is massive harm, clearance brought about cross axle swing back and forth. When engine runs, gear-box interior delivers the one part with the very large motive force that come out is be used up by this cross axle. Because be put in clearance, wobbly range is bigger and bigger, arrive to follow almost greatly between cross axle grind gave a dent. Below such circumstance, it is to think it is difficult to do not want abnormal knocking really. This follows transmission shaft already cannot reoccupy, must want to change.
New cross axle has been installed reached the designated position, install namely next bolt and undertake vent-pipe restoration. Of transmission shaft those who enter transmission case is additional one aspect of the matter is spline formative, insert gear-box interior directly can. Differ in front of fast implement was to use the bolt of 4 M12 to undertake going up tightening, screw pitching moment is 36 oxen rice.
I found a piece of cross axle type to wait fast of gimbal analyse a scheme, specific interior is how work with the structure can see. Those who give an issue is 4 mix 9 between did not have grease to undertake lubricating, especially the road of seeper faces bearing kind ability of mechanical component attaint is tremendous. Need a few times short to be able to wash grease only, do not want to enter seeper road surface rushedly so, not be us really what see daily is so simple. The graph is the oiling mouth of cross axle 3 medium, be the grease of infuse of oil gun extruding that passes high pressure, this also is why the cart of very large carry cargo often needs to undertake infuse grease, because working environment is too harsh,be, cross axle often easy attaint. Can be us in daily life, how many person notices this thing again?
