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Nairaland Forum / Nairaland / General / Car Talk / My Vehicle Sound Change After My Mech. Tamper With This Part. Help (2560 Views)
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My Vehicle Sound Change After My Mech. Tamper With This Part. Help by izaac23(m): 5:13pm On Jul 16, 2022 |
I drive Corolla 2003, My mechanic told me that my timing chain is weak when I went to service my engine. But he said he can do something to adjust it from the back of my engine to be alright, so I allowed him. He loosed this part (pics attached) from the back of my engine and took it to a welder, I don't know wat the welder cut or weld into it, he brought it back, sand paper it and fix it. Since then, the sound of my engine changed and start grunting a bit louder when I start the engine, but normalize when the engine settles, but grunt on motion. My vehicle engine is always quiet, but after wat he did, I can hear the sound of my engine from the inside when I drive it. Pls I need help, wat is the consequence of wat he just did, and wat can I do about it. Gurus help me pls. Thanks.
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Re: My Vehicle Sound Change After My Mech. Tamper With This Part. Help by izaac23(m): 5:17pm On Jul 16, 2022 |
The part the arrow is pointing to
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Re: My Vehicle Sound Change After My Mech. Tamper With This Part. Help by Franky70(m): 5:21pm On Jul 16, 2022 |
Crank shaft don spoil be that 1 Like |
Re: My Vehicle Sound Change After My Mech. Tamper With This Part. Help by PointZerom: 5:21pm On Jul 16, 2022 |
He must have tampered with the catalyst. |
Re: My Vehicle Sound Change After My Mech. Tamper With This Part. Help by Franklyspeakin: 5:23pm On Jul 16, 2022 |
What's the name of your car, engine spec, what is also the name of the part changed?. Did you stay with him during the change or did he do the change in your absence. I hope you catalyst hasn't been removed. 10 Likes
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Re: My Vehicle Sound Change After My Mech. Tamper With This Part. Help by izaac23(m): 5:59pm On Jul 16, 2022 |
Franklyspeakin: I was there all the way to the end, my catalyst has not been removed, let's rule out that |
Re: My Vehicle Sound Change After My Mech. Tamper With This Part. Help by izaac23(m): 6:01pm On Jul 16, 2022 |
PointZerom:I He did not, just the part in the pics Nurey Kingreign Etc., Pls come up abeg |
Re: My Vehicle Sound Change After My Mech. Tamper With This Part. Help by aieromon(m): 6:05pm On Jul 16, 2022 |
izaac23: Imagine the abuse this car with a simple engine design suffers in the hands of Kazeems just to eliminate rattle at start up. ![]() https://www.nairaland.com/7229864/engine-rattle-noise-upon-cold GAZZUZZ: 3 Likes |
Re: My Vehicle Sound Change After My Mech. Tamper With This Part. Help by oweniwe(m): 6:33pm On Jul 16, 2022 |
^^ Oga Gazzuzz saving engines since 1930 ![]() diportivo: ![]() |
Re: My Vehicle Sound Change After My Mech. Tamper With This Part. Help by GAZZUZZ(m): 7:36pm On Jul 16, 2022 |
izaac23: You have worn out timing chain, timing chain guards, and most likely vtc actuator. What the mechanic did was to extend the factory length of your tensioner (longer "d" so it can hit the sweet spot) so the chain will not rattle, unfortunately I don't know how long this will last. Bite the bullet and do a proper job by opening the timing chain cover, examine the parts that are worn and replace them. Good luck. 9 Likes |
Re: My Vehicle Sound Change After My Mech. Tamper With This Part. Help by Nobody: 10:42pm On Jul 16, 2022 |
Give your car to an educated mechanic not a kazeem who was forced to drop out of school at primary 5 and was forced to become a mechanic 4 Likes |
Re: My Vehicle Sound Change After My Mech. Tamper With This Part. Help by izaac23(m): 12:18am On Jul 17, 2022 |
GAZZUZZ: This was what he said, but before this, I never noticed any rattling in my engine, now if I ramp up the engine, I hear rattling on one side of the engine where he tampered with. Pls if I remove the part in the picture he welded and fixed back, buy another one and fix, will it stop?? Secondly how old do we think that part will cost me? |
Re: My Vehicle Sound Change After My Mech. Tamper With This Part. Help by izaac23(m): 12:19am On Jul 17, 2022 |
izaac23: Here is the part am referring to
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Re: My Vehicle Sound Change After My Mech. Tamper With This Part. Help by GAZZUZZ(m): 6:55am On Jul 17, 2022 |
izaac23: GAZZUZZ: |
Re: My Vehicle Sound Change After My Mech. Tamper With This Part. Help by TRYGO(m): 9:22am On Jul 17, 2022 |
Welcome to NL. Some questions for you: 1. How many miles on the odometer? This would help us determine the age of your engine internal components, and hence the noise (if perhaps there was any before you took the vehicle to the mechanic). 2. Was there any engine noise before you went for an oil change? What was that thing he welded from your picture? What he welded is called a timing chain, autotensioner. It is spring loaded intern, and operated using engine oil pressure. Consequences of what he has done? They are extremely grave here dude; if not quickly corrected, would lead to engine failure (knock). This would happen in your case, since the plunging action of the auto tensioner, has been permanently arc welded. This increases more than enough stress on the valve train components, leading to engine failure. You want proof of the above paragraph? Here we go! ** Drain that oil, and you'd see aluminum filings there, which would definitely clog the oil pump filter, etc. ** Valvetrain components would be already worn out before now. The fix?! ** Drain that oil, if you've not driven the car for a while now(loads on engine, etc) This would help reduce or eliminate all the aluminum fillings that might have been lodged in the engine. Do this one or two times, with a new oil filter, and engine oil refilled. ** Replace that timing chain, auto tensioner (what he arc welded). ** Replace the VVTi(camshaugears), if that hasn't failed yet. Be absolutely sure that, the noise you may have had, before you took the vehicle to him, was not a cold start VVTi problem. Hope this helps you fix that engine. Hope this helps you out there. 2 Likes
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Re: My Vehicle Sound Change After My Mech. Tamper With This Part. Help by TRYGO(m): 10:00am On Jul 17, 2022 |
The picture below shows what a valvetrain actually meant. Although, this is for a 2ZR engine Corolla 2008, as exposed.
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Re: My Vehicle Sound Change After My Mech. Tamper With This Part. Help by TRYGO(m): 10:07am On Jul 17, 2022 |
This is actually howw your engine (1ZZ) looks like. This was from an engine I bought some years ago. 2 Likes
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Re: My Vehicle Sound Change After My Mech. Tamper With This Part. Help by Cokahot: 11:47am On Jul 17, 2022 |
There is no perfect mechanic in naija again. They are all quacks..... now my radiator is leaking g and temp guage rising to almost middle. I will forcefully take out the radiator later this evening and mend it with super glue. Me don taya for quacks |
Re: My Vehicle Sound Change After My Mech. Tamper With This Part. Help by buygala(m): 2:23pm On Jul 17, 2022 |
Cokahot: That's how yesterday, I took my car to a highly recommended car radio "expert" to help me install a subwoofer... While doing that, he had to take apart a part of the car dashboard panel housing the radio and AC buttons...Dude did a nice and neat job with the subwoofer installation..that worked perfectly Only problem was that I discovered at night that my car's ac button night lights were no longer working ![]() ![]() Somehow, Naija mechanics always manage to install a new problem after solving an old one ...Maybe it's part of the ethics of their profession.."Never forget to install a new problem after solving an old one" 8 Likes 1 Share |
Re: My Vehicle Sound Change After My Mech. Tamper With This Part. Help by GAZZUZZ(m): 4:35pm On Jul 17, 2022 |
buygala: We rise by forgetting others ![]() 8 Likes |
Re: My Vehicle Sound Change After My Mech. Tamper With This Part. Help by buygala(m): 5:45pm On Jul 17, 2022 |
Re: My Vehicle Sound Change After My Mech. Tamper With This Part. Help by Cokahot: 7:26pm On Jul 17, 2022 |
I swear. One tampered with my plastic gear cover,suddenly my passengers side speaker stopped working. Called a technician, he opened the door panel,nothing was disconnected. Without a multimeter, he said its condemned and should buy a new one. Most mechanics aren't and weren't to be one,they forced themselves to be one based on no job or lik to no education. Mechanics,rewires and what have u are all trial and error,while doing that some parts,plastics ,plugs and all would be damaged in the process. Esp if your car sleeps there. Your own don be buygala: |
Re: My Vehicle Sound Change After My Mech. Tamper With This Part. Help by izaac23(m): 7:34pm On Jul 17, 2022 |
TRYGO: The odometer reading is about 197,000+ miles I went to the mechanic for oil change and also to change the small shock attached to the roller the fan belt passes thru cuz it was weak and made noise when I engage the A/C and at low speed, which he did perfectly and the noise stoped But while doing this, he said that he noticed that my timing chain is weak (which offcouse I did not notice any sign of that) and that he will do something to adjust it to work perfect, hence the uprooting and wedding of the inner part above (pics) I use Mobil 1 5w30, ur sugestion of oil change twice will cost me alot, is there no other way? Can that timing chain outotensioner be easily seen, and how much do you estimate it will cost cuz I want to replace it now I have heard the consequence of it asap. Thanks for your prompt responds. |
Re: My Vehicle Sound Change After My Mech. Tamper With This Part. Help by TRYGO(m): 10:27pm On Jul 17, 2022 |
@izaac23. 1. You're not to drain and refill with a synthetic as the case maybe now. Use conventional mineral oil, just for the drains, then you could revert back to your synthetic oil. 2. Auto tensioner is easily seen, and that's the pictures you posted here. 3. How much would it cost? Well, depends on the technician you're working with, and whether if you're buying new, or used. |
Re: My Vehicle Sound Change After My Mech. Tamper With This Part. Help by izaac23(m): 3:31pm On Jul 18, 2022 |
TRYGO: Alright sir, thank you very much 1 Like |
Re: My Vehicle Sound Change After My Mech. Tamper With This Part. Help by buygala(m): 10:13am On Jul 19, 2022 |
Cokahot: It's sad Yesterday, I had to pay another rewire 3k to fix the dashboard lights that the radio guy spoilt ![]() Turned out that in the radio guy's hurry to couple back that dashboard panel after the subwoofer fix, he stretched and cut some wires, leading to the dashboard lights malfunction ![]() The one who fixed the radio guy's carelessness further broke one of the panel's clips while coupling other back ![]() ![]() Nigerian car technicians and mechanics are spawns of the devil..they give with one hand and take with the other ![]() 3 Likes 1 Share |
Re: My Vehicle Sound Change After My Mech. Tamper With This Part. Help by GAZZUZZ(m): 3:14pm On Jul 19, 2022 |
buygala: Devil friend how far? ![]() |
Re: My Vehicle Sound Change After My Mech. Tamper With This Part. Help by buygala(m): 3:22pm On Jul 19, 2022 |
GAZZUZZ: I am presently in the business of avoiding you mecho people ![]() Radio guy and rewire don do me enough shege for 3 months ![]() |
Re: My Vehicle Sound Change After My Mech. Tamper With This Part. Help by GAZZUZZ(m): 3:37pm On Jul 19, 2022 |
buygala: We just started, the tyre repair guy go help us forget to tight 1 wheel well ![]() |
Re: My Vehicle Sound Change After My Mech. Tamper With This Part. Help by buygala(m): 3:48pm On Jul 19, 2022 |
GAZZUZZ: Since wey one vulcanizer forget to tight my car tyre well wey d tyre almost comot for Hawan Kibo, na me dey tight, retight and reretight my tyre myself... Una no fit kill me..I ashua una ![]() |
Re: My Vehicle Sound Change After My Mech. Tamper With This Part. Help by Emilokan1(m): 6:12pm On Jul 19, 2022 |
Mad fifu full this thread ![]() |
Re: My Vehicle Sound Change After My Mech. Tamper With This Part. Help by izaac23(m): 10:29am On Jul 20, 2022 |
TRYGO: Good evening Oga TRYGO and my auto gurus, I finally went back to the mech, I told him to quickly undo wat he did to the adjuster, he tried convincing me otherwise but I was insistent. So he loosed the part out. Wat he did here was that he welded a round knot to the tip of the adjuster to increase the length of the adjuster, he did not weld the adjuster to remain permanently to one place cuz when he removed the clip on the adjuster, it still sprung out. He took it back and removed the knot he welded to the adjuster and the adjuster was back to it normal length, then he tight it back to it's place but the sound I heard remained constant. Wat I don't understand this minute was if the sound was there already and I did not notice it till he touched the adjuster that I search for any different in sound cuz if I don't tell you where and wat to concentrate your listening when I start the engine, u will not hear it. It's a very small rattling sound. I took it to another mech who I know have years of experience and has worked in an auto company before, He came up with a different conclusion o, he said that is not the chain, that the chain can't be weakened, he said it's the camshaft inside the engine that is making the sound. He added that the camp is not firmly attached and it's has clearing under that makes it move, hence the noise. Which among this cud be the case? I no know wetin to bliv again my people |
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