Engine is the source of main motive force that serves as a car, as the progress of science and technology, engine is in one step by step medium improvement, had done very perfect; Almost orgnaization of system of the any on engine, no matter be normal data or unusual data,can be monitored by computer of drive a vehicle, when engine is in unusual position, the engine lantern show on appearance shines, remind the person that drive engine is in unusual position in order to show.
Now day the car of A4 of this Ao Di advocate the situation that encountered engine trouble lamp to shine, and still appeared the evidence of water lukewarm on the high side; Pass those who maintain a master to detect, the water pump that discovers this engine place is deployed finally appeared unusual; Not only such, working normally when water pump while, listen carefully can hear from time to time give out abnormal knocking.
The graph is this water pump on unusual, and need changes the Ao Di A4 of water pump, alleged " the man's Ao Di, of the woman enlighten abstruse, the son's Aoliao " , this word says a bit truly; Though full ave is Ao Di A4, but in a way is viewed and admire carefully, still can be attracted by person of its inherent flourishing age approach. Nevertheless, it is the car is met bad, bad must repair, after this car is checked through tearing open solution to change, maintain what the master states this water pump is bad to belong to solid very odd.
From on can see on graph nameplate, this car leaves factory with 2011; Carrying the one EA3 that the stage can output 132 kilowatt 2 litres 8 engine.
From on can see on scheme meter, since this car leaves factory oneself, in all travel 100 thousand much kilometer.
Since money of make a fresh start, ao Di will be traditional when the mechanical water pump of leather belt drive, newer trunnion shaft drives the mechanical water pump of belt-conveyor; The graph needs changing water pump unusually to appear on, this small thousands of are done not have again.
Electronic water pump installs the lower part in the manifold that take energy of life, use at tearing open outfit water pump to get larger space, so need pulls down the manifold that take energy of life.
Once had the mechanical water pump that the Ao Di A4 of an old money uses, and change old money needs to tear open when water pump of Ao Di A4 a large number of fittings and when leather belt; The photograph is mechanical to old money for water pump, tearing open water pump of outfit new fund still is relatively simple; Maintenance master worker expresses to aux would rather tear open the manifold that take energy of life to also do not want to tear open when system, the manifold taking energy of life that the graph issues to had been torn open on.
Observe the high-pressured atomizer that is torn open to come down together carefully, can see already adherent circuit accumulates carbon above atomizer.
And more serious accumulate carbon with respect to what belong to accumulation of the place on inlet valve, from on can see inside the circle that graph arrowhead indicates, what the no less than accumulating carbon that piles up on spiracle is scorched is plastic and same sticky above; The formation that accumulates carbon basically comes from the one instant at engine flameout, because engine is versed in 4 made journeys are respectively,take energy of life, compress, acting, exhaust, extinguish engine so flashy ignition is cut off immediately, but the benzine with the ejective place in this working loop was not ignited and cannot be called in, can be volatilized inside cylinder by ejective benzine so, volatilization benzine can adhere to in upper part of door of piston, valve, atomizer, solar term; And the impurity in benzine (like material of glue, candle) in iteration be heated these material can be formed accumulate carbon, as time passes can appear on attempt condition; The course enquires a car advocate be informed, car advocate use 92 gas for long, and photograph of the impurity in 92 benzine compares the others two kinds of benzine want a few taller; Through a series of after chatting, car advocate the decision accumulates carbon to undertake cleaning to what can observe first, and be used later clean spend more expensive gas to serve as fuel.
Pull down after the manifold that take energy of life, construction space increases, the circumstance be clear at a glance of water pump; A tooth-like part of anything that the Che Youken of sharp-eyed sees leather belt is contained in circle surely dish, this tine dish from water pump rear join at trunnion shaft; Once the water pump that be the same as a paragraph has appeared trunnion shaft drive ages dish of case that holds in the arms dead, the tine that holds in the arms dead dish bring about whole water pump to discard as useless, and bringing about the reason that adopts dead also is complicated and confusing up to now.
The graph is on had pulled down the condition after water pump; Clarity of mouth of loop of pass in and out of the cooling fluid on cylinder body is visible, before installing new water pump, need is cleared clean here.
The graph is the comparative figure of new old water pump on.
Give out abnormal knocking to make clear why Hunan water pump is met, maintenance master worker decides to pull down thermostat looks inside the circumstance of water pump lamina; The thermostat that the graph issues to had been torn open on.
Pull down after thermostat, can see the case of lamina of one fraction water pump from mouth giving water.
For can clearer see a case, I put watch for a chance into designedly most inside (the mobile phone is too old put do not go in, what pat so is not very clear) ; Can see on the water pump wall of lamina of graph circle place and upper part has chafed together, dial the meeting when using blade to discover very demanding, and blade also appeared the evidence of rock; Breakdown source has been found, this kind of circumstance also is not very common. Because water pump cannot be opened completely to maintain, can change only so a brand-new water pump will replace it.
The graph installs new water pump to be in on.
After water pump installation ends, the manifold taking energy of life that before continueing to install next, pulls down. Adding antifreeze into cistern afresh later; Last pace tries water namely air of lukewarm, platoon, after checking repeatedly, in affirmatory water lukewarm the ability below all normal circumstances makes a car.
From this car 8 years of travel 100 thousand kilometer, adding its structure of water pump itself is complex in light of, use under photograph comparing now still is already very pretty good; The period of time before I am written down has an Ao Di A5 also is the water pump is the same as a paragraph that embark, result 30 thousand much kilometer when appear slack circumstance.
