Engine Autopsy 3.3L V6 242 Hp Hyundai Santafe 2008 Engine - Car Talk - Nairaland
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| Engine Autopsy 3.3L V6 242 Hp Hyundai Santafe 2008 Engine by GAZZUZZ(m): 7:15pm On Jan 31, 2019 |
Service History. Hyunda santafe 2008 3.3liter V6 Vehicle is about 2years in Nigeria, oil changes strictly Full synthetic oil 5w20 mobil at intervals always less than 5000miles. Complains of misfire mid last year, sparkplugs and coils replaced, injectors cleaned. Intermittent misfires continued but not a daily occurrence, some times weekly some times monthly. Misfires could be solved by restarting vehicle, some times restarting might not solve misfire. Misfires became more obvious and was brought to workshop for engine tune up and servicing. Injectors cleaned, spark plugs replaced, engine ran smooth. Just to be sure I took car out for a spin on third mainland at about 9:30pm monday night engine ran well just at the base of the bridge engine died, attempts to restart were met with stiff resistance. Vehicle towed to workshop. Engine frozen stiff, engine oil check not metal particles or discoloration from dipstick. Took engine out of bay. Engine taken apart Crown of valve found inside combustion chamber (cylinder2) Cylinder damage Bore damage Piston damage. What happened? Please Discuss. Cc: motorguru, Inception, hevenlybang, thebigkendo, Diportivo, thecar, Obekediamondfuto, LeJeun3, Mayor2013, timifakay, oluwaseunla, sooperrescue and all other cardealer's in the house. 1 Like
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| Re: Engine Autopsy 3.3L V6 242 Hp Hyundai Santafe 2008 Engine by GAZZUZZ(m): 7:18pm On Jan 31, 2019 |
More pictures 1 Share
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| Re: Engine Autopsy 3.3L V6 242 Hp Hyundai Santafe 2008 Engine by GAZZUZZ(m): 7:19pm On Jan 31, 2019 |
Final pics
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| Re: Engine Autopsy 3.3L V6 242 Hp Hyundai Santafe 2008 Engine by mejai(m): 8:02pm On Jan 31, 2019 |
Landing with my parachute and night goggles vision 2 Likes |
| Re: Engine Autopsy 3.3L V6 242 Hp Hyundai Santafe 2008 Engine by Piyke: 8:29pm On Jan 31, 2019 |
Drops mat... |
| Re: Engine Autopsy 3.3L V6 242 Hp Hyundai Santafe 2008 Engine by Tyche(m): 8:54pm On Jan 31, 2019 |
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| Re: Engine Autopsy 3.3L V6 242 Hp Hyundai Santafe 2008 Engine by oyekanwahab(m): 8:59pm On Jan 31, 2019 |
me too want to learn work |
| Re: Engine Autopsy 3.3L V6 242 Hp Hyundai Santafe 2008 Engine by MotorGuru: 9:19pm On Jan 31, 2019 |
Now we know the genesis of the misfire. I think what would have prevented this would have been to perform a compression test on all cylinders prior to test drive. What caused the valve failure? Misaligned timing? Valve that had a factory defect from the manufacturing process? Mysteries. The lambda engine ( 3.3 v6) , although is known for oil consumption due to bad piston rings/ pistons( piston slap), this is quite unusual. 2 Likes |
| Re: Engine Autopsy 3.3L V6 242 Hp Hyundai Santafe 2008 Engine by Piyke: 9:22pm On Jan 31, 2019 |
I'm just wondering what caused such mechanical failure in an apparently well maintained engine. Hmmm... 1 Like |
| Re: Engine Autopsy 3.3L V6 242 Hp Hyundai Santafe 2008 Engine by justiniyke29: 9:28pm On Jan 31, 2019 |
let me spread my mat here. ** shouting Chioma!!!!!!!!!!!!! where is this woman self. Abeg bring that palmwime from the fridge and send nonso to buy a plate of pepper soup. 5 Likes |
| Re: Engine Autopsy 3.3L V6 242 Hp Hyundai Santafe 2008 Engine by justiniyke29: 9:29pm On Jan 31, 2019 |
Piyke:His village people were active that night. |
| Re: Engine Autopsy 3.3L V6 242 Hp Hyundai Santafe 2008 Engine by MotorGuru: 9:32pm On Jan 31, 2019 |
I think the best option is to replace the engine. Kai for this economy  2 Likes |
| Re: Engine Autopsy 3.3L V6 242 Hp Hyundai Santafe 2008 Engine by adanny01(m): 9:42pm On Jan 31, 2019 |
Pass the engine to one kazeem, he go manage turn the engine to 5 cylinder. 12 Likes |
| Re: Engine Autopsy 3.3L V6 242 Hp Hyundai Santafe 2008 Engine by Frankdamaxx(m): 9:54pm On Jan 31, 2019 |
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| Re: Engine Autopsy 3.3L V6 242 Hp Hyundai Santafe 2008 Engine by mayor2013: 10:22pm On Jan 31, 2019 |
This is typical case of a back fire. This went straight back to the engine hence the occurrence of this. I once dealt with this. Exhaust becomes red as hell fire  after 6secs of starting the vehicle. This might be an exception but it's a back fire. Pele sir  |
| Re: Engine Autopsy 3.3L V6 242 Hp Hyundai Santafe 2008 Engine by GAZZUZZ(m): 10:27pm On Jan 31, 2019 |
mayor2013: 2 Likes |
| Re: Engine Autopsy 3.3L V6 242 Hp Hyundai Santafe 2008 Engine by CityNGR: 10:53pm On Jan 31, 2019 |
Why the clamour for synthetic oils? If the interior of an engine using Mobil synthetic oils sold by the op is like this?! 10 Likes |
| Re: Engine Autopsy 3.3L V6 242 Hp Hyundai Santafe 2008 Engine by MotorGuru: 11:16pm On Jan 31, 2019 |
mayor2013: Wouldn't that be a case of a blocked exhaust( catalyst)? 3 Likes |
| Re: Engine Autopsy 3.3L V6 242 Hp Hyundai Santafe 2008 Engine by LeJeun3: 11:19pm On Jan 31, 2019 |
CityNGR: Sorry to ask, what colour would the inside of this engine looked like? GAZZUZZ: Trying to figure out... detonation causing valve to bend and stuck open (hence the misfire)... |
| Re: Engine Autopsy 3.3L V6 242 Hp Hyundai Santafe 2008 Engine by mayor2013: 11:41pm On Jan 31, 2019 |
MotorGuru: Not in all cases |
| Re: Engine Autopsy 3.3L V6 242 Hp Hyundai Santafe 2008 Engine by Fasco2luv: 1:18am On Feb 01, 2019 |
incorrect timing. |
| Re: Engine Autopsy 3.3L V6 242 Hp Hyundai Santafe 2008 Engine by Coldplay007(f): 3:44am On Feb 01, 2019 |
Sludge build up.. too frequent oil changes.. probably short commune or car rarely driven.. lol Maybe fake mobil 1.. 1 Like |
| Re: Engine Autopsy 3.3L V6 242 Hp Hyundai Santafe 2008 Engine by GAZZUZZ(m): 6:14am On Feb 01, 2019 |
there is no sludge in engine. Discoloration is from previous user outside the country. 3 Likes |
| Re: Engine Autopsy 3.3L V6 242 Hp Hyundai Santafe 2008 Engine by Nobody: 6:44am On Feb 01, 2019 |
CityNGR: 2 Likes
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| Re: Engine Autopsy 3.3L V6 242 Hp Hyundai Santafe 2008 Engine by Nobody: 6:45am On Feb 01, 2019 |
Coldplay007: 2 Likes
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| Re: Engine Autopsy 3.3L V6 242 Hp Hyundai Santafe 2008 Engine by CityNGR: 6:48am On Feb 01, 2019 |
HOW CONVENIENT TO BLAME THE USER OUTSIDE THE COUNTRY FOR THE ENGINE INTERIORS DISCOLORATION [quote author=TheCar post=75310308][/quote] 10 Likes
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| Re: Engine Autopsy 3.3L V6 242 Hp Hyundai Santafe 2008 Engine by Nobody: 7:26am On Feb 01, 2019 |
CityNGR: Na me talk discoloration. Beside when car manufacturer start recommending light weight engine oil and our market is flooded with heavy weight engine oil, something need to be done to save new cars. Car Owners need to clamour for light weight engine oil and thanks for the clamouring, we now have light weight engine oil and I believe no one put guns on anybody head to buy oil. Let us enjoy this movie without distraction. 1 Like
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| Re: Engine Autopsy 3.3L V6 242 Hp Hyundai Santafe 2008 Engine by MotorGuru: 8:51am On Feb 01, 2019 |
LeJeun3: Interesting dimension. But i think detonation will more likely destroy the pistons heads than the valves due to the material composition of the two (the piston is 'softer'). I think this is more inclined to a factory defect( the valve manufacture). Detonation would imply that either the knock sensors were not working ( unlikely, since car would have been scanned prior to test drive) or a really really crappy fuel was used to run the engine (the engine does not require or recommend premium). Another thing i noticed was scratched cylinder walls. This means the engine would have been suffering from piston slap. 2 Likes |
| Re: Engine Autopsy 3.3L V6 242 Hp Hyundai Santafe 2008 Engine by GAZZUZZ(m): 10:09am On Feb 01, 2019 |
More pics and info. Exhaust side of the valve area, no build up of carbon, clearly no sludge buildup. Question remains, why did valve crown detach from the stem. P.S if you have nothing constructive to contribute, just relax in politics/romance section. 2 Likes
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| Re: Engine Autopsy 3.3L V6 242 Hp Hyundai Santafe 2008 Engine by MotorGuru: 10:24am On Feb 01, 2019 |
The intake valve was damaged. Could there have been a possibility of the engine ingesting a foreign object apart form air? 1 Like |
| Re: Engine Autopsy 3.3L V6 242 Hp Hyundai Santafe 2008 Engine by CityNGR: 11:19am On Feb 01, 2019 |
Some people are just intolerant.. Unfortunately Nairaland is for erryone! Truth hurts! 4 Likes |
| Re: Engine Autopsy 3.3L V6 242 Hp Hyundai Santafe 2008 Engine by snipesdam(m): 11:46am On Feb 01, 2019 |
The valve lock dip may have failed when it opened and remained there then the cylinder head crushed it. Further attempts to restart the engine caused more damage. A timing jump may be in play. 4 Likes |
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