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Originally Posted by Sibze I agree Zaggeron that’s what I am thinking too. It SHOULDN'T be a Nissan problem because really what could have gone wrong for the engine to
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Dakilla,
I'm not saying yea or nay, but you can add a great deal of credence to your incident by simply uploading a pic of your service sheet from the Nissan dealership (even if it's the one they gave you when you admitted your Z) so members can see it. You can also scan and blackout important data such as names, and the like, but leave enough information showing that validates your case. Losing 5 1/8 of oil is a lot and believe me the tale-tale signs will show even if a little to the entire volume of oil leaving the engine. The tailpipe tips, and the rear bumper will exhibit signs on a slow burn and even if the rings went you would notice black smoke bellowing in your rearview mirror and someone behind you would have alerted you if you didn't. Our 370Z gets its oil checked after each drive about an hour later when it comes to rest in our garage. If you were changing your own oil you might have stripped the oil drain plug if not torque correctly or by using an air tool versus a hand tool, but the dealership can determine that too. Good luck on the outcome....hopefully, it is in your favor.
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The knocking you are describing is probably rod knock -- meaning that due to improper oiling, the bearings were toasted, and bam -- dead motor.
This leads me to believe either: (1) Faulty motor -- possible, but the lack of oil begs the question of where it went... (2) oil pump or oil pickup failed -- again, possible, but then we'd see evidence of a destroyed oil pump gear or something major blocking the pick up in the pan -- again where is the oil? (3) Seriously fvcked engine from improper ring sealing due to incorrect break in/poor build -- possible, but it's hard to imagine all the oil went into blowby and you would have been way down on compression and therefore power (4) Oil leak or oil was never put back in -- the pistons and rods are coated with a dry lubricant film (I believe), so yes, it is actually possible that you had hardly any oil in there and it held together for a while before breaking -- highly unlikely, but not impossible. (5) A combination -- not enough oil was put in, you were burning what little there was from improper ring sealing, etc. finally insufficient lubrication led to toasted bearings. Get a lawyer. And a leakdown test/teardown.
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Enjoy it. Destroy it. Last edited by Jordo!; 07-01-2010 at 09:09 PM. |
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Engine output actually may not be affected by poor ring sealing which is causing oil consumption. Depends which rings are at fault. Failure or poor sealing of the oil control ring and/or the 2nd compression ring can cause oil consumption, but not necessarily a large loss of power since most of the cylinder sealing is accomplished by the top/1st compression ring. Power WILL be lost by inadequate oiling of the wrist pin, piston skirt, etc. in those cases, however. But that power loss would be negligible until you had a wrist pin seize on you.
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Enjoy it. Destroy it. |
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That's my current theory. When he got his oil changed they didn't put in enough and that caused the rest to slowly burn off.
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PEBCAK .... and if you need to figure it out, go to
acronyms finder dictionary and abreviations finder dictionary - acronyms and abreviations list, definitions and funny acronyms from medical, military, army, training, business, internet, and emails. and I am sure you will find lots of other acronyms that may well apply. If there is no oil in the sump, either there never was any oil in the sump from the last time it was drained (and not refilled - either partially or completely), or it has been burned and the exhaust pipes will show oil traces, or it leaked out and there will be oil traces under the vehicle. The only other option is leprechauns .... but since you-awl are in the good ole YewSay, I think I can safely rule them out ... So you are left with only 3 options ... and if there is no oil on the underside the car, and no trace of oil in the exhaust system, there is only one explanation .... an incompletely filled sump after the last oil change. The fact that there was no low oil pressure warning light needs to be investgated as the electrical connector from the oil pressure switch, or the oil pressure switch itself may have failed. I would go see a member of the legal profession ..... and consult an independent mechanic to check the circuitry to the oil pressure sender and the sender itself. The other lesson - get into the habit of a simple weekly check: 1) oil dipstick, 2) radiator water level in the overflow tank; 3) tyre pressures; 4) screen washer bottle water level; 5) brake fluid levels and 6) power steering oil reservoir ......... takes 5 minutes .... and can help avoid this sort of nightmare .... |
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Maybe that’s a best practice for all of us; always have them show you the dipstick before leaving! |
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#11 (permalink) |
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Or check it yourself before you leave the premises ... either way. But really, no insult to OP, I wouldn't let a car wash joint *wash* my Z much less touch the engine.
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Why was it closed? Because it was going off topic and you were making comments such as these
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There is a BIG hole in your story. Either a. You're NOT telling us the real story or B. You have no clue what's going on (or happened). 5 1/8 Quart of oil just doesn't disappear easily. Something must have happen at the shop you get your oil change done. Chances are they didn't put enough oil as the tech got distracted. You're 1 out of 10,000+ 370Z owners. This is why you are getting this look ![]() Quote:
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![]() ![]() I'll share a story real quick. One of my friend has a Mazda 6 and she always gets the oil changed at Jiffy Lube (3rd party oil). Jiffy lube f*cks up and forgets to tighten her drain plug. Car loses all oil and engine seizes. She goes back to dealer asking for a new engine. Guess what they told her? A big NO. If your 3rd party ruins your car, THEY will pay for the damages NOT Nissan. In this case, Jiffy Lube DID end up paying for the WHOLE repair. Quote:
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Again, this thread is going like the first one!
IBTL
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