Three cases of engine failure _1086

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Three cases of engine failure

Two days off a fork. The inspection found that the crankshaft pulley loose, causing the belt shaking, so that the fan belt to work under often distorted state, which occurs early fracture will tighten the crankshaft pulley, troubleshooting. A few days later, the fan belt fork fracture. Upon inspection, the crankshaft pulley fork is loose, so that repeated several times, only to find start-claw on the front of the crankshaft threaded screw hole than the length of the thread length plus the fan belt and the much longer disc thickness 2mm, even if the starting tight claw screw can only be the crankshaft pulley in place just pressure, but not pressed. In this way, regular orange crankshaft pulley fixed, resulting in often broken fan belt. Thread length of the front claws will start cutting 2 ~ 4rl'l1TJ, after loading did not occur early fan belt breakage. Can also start with the crankshaft pulley paw pad of a thickness of between about 3mm flat washers or screw holes to enhance the front crankshaft 2 ~ 4mm. Example 2: a thirty 『Yu-modified 130 medium-sized passenger car chassis,[link widoczny dla zalogowanych], the engine driving the oil pump drive shaft suddenly broke,[link widoczny dla zalogowanych], the engine lost oil pressure. When the oil pump drive shaft fracture little different sound, coupled with the engine running noise of the cover, the driver is not found, nor to observe the oil pressure gauge and continued to travel, so that the engine burned out. Burst due to engine oil strainer,[link widoczny dla zalogowanych], set the filter plug into the pipeline rupture and air compressor (with air compressor of the engine) and other fault, will cause the engine oil pressure suddenly dropped to zero, if you continue driving, the engine will burn. Inexperienced drivers easily miss, and experienced drivers are able to quickly detect the engine lubrication system failure. Because they know that anti-friction lubrication system with cooling, washing, sealing, anti-rust and lubricating functions such as lubrication system fails,[link widoczny dla zalogowanych], the driver's first impression is the engine temperature increases, temperature increases due to the valve seat ring hair, while the engine power declined. In such cases, the driver should immediately observe the oil pressure gauge, if the oil pressure is low or zero, should be immediately stopped, turn off the engine check. In order to prevent the engine lubrication system failure and burn engines, it is recommended that all vehicle manufacturers to install oil pressure gauge in addition, it should also install the oil pressure indicator light and audio alarm to prompt the driver of lubrication system failure. Example 5: a modification of the medium Yuzhou 130 bus chassis, the driver usually reflect the engine is running well, but sooner or later, bright lights after dark driving, the engine will issue a \, that is, turn off the engine of a cylinder inspection lamps, lighting normal cross-check Distributor, ignition coil and so did not find the problem. Has replaced the capacitor, platinum, ignition coil, distributor rotor and spark plugs, etc., are not troubleshooting. Remove the dashboard,[link widoczny dla zalogowanych], that a terminal of the fastening nut ammeter some loose, tighten the nut, troubleshooting. Ammeter terminal due to loose nuts, bad, so low line resistance increases, current decreases. Headlights when not in use, the supply of low-voltage ignition system current basic enough; when using the headlights, the ignition system, low current decreases, the pressure generated by the ignition coil current and voltage decrease, so easy to make the engine of a cylinder power, flame, issued a \The original date of receipt of a 19 ④ :1998-0s