Phenomena of car shaking at start
When vehicle is started in a low gear, in accordance with operating rules, gradually release clutch pedal and slowly depress accelerator pedal, clutch does not engage smoothly, a knock occurs, and in severe cases, even a knock occurs. throughout car.
Causes of car shaking on startup
① The height of inner end of separation arm is not in same plane.
② The driven plate or pressure plate is warped and deformed, and circle of end face of flywheel end face is strongly knocked out.
③ The friction plate of driven disc has uneven thickness, oil stains, burnt, uneven surface, surface hardening, exposed rivet heads, loose or sheared rivets, and damaged wave spring plates.
④ The spring force of compression spring is uneven, tired or broken individually, and diaphragm spring is tired or cracked.
⑤ The buffer plate on driven plate is broken, or damping spring is tired or broken.
⑥ The fixing bolts of engine bracket, transmission bracket, flywheel, flywheel housing, etc. are loose.
⑦ The release bearing bush and conduit are heavily oiled and dusty, preventing release bearing from returning to its original position.
Steps of starting a car
Diagnosis and elimination of vehicle shaking at startup
① Check if clutch pedal, release bearing, etc. returns normally, and if it is normal, continue checking.
② Check whether fixing bolts of engine bracket, transmission, flywheel, flywheel housing, etc. are loose, if so, tighten bolts, otherwise continue checking.
③ Check if inner end of separating arm is in same plane, if so, continue checking.
④ Check whether pressure plate and driven plate are deformed, whether rivets are loose or exposed, and whether compression spring force is within allowable range. If yes, replace or repair.