A friend of mine had his Nissan repaired recently. He had the timing chain and water pump replaced. A week later, the car dies. He returns to the shop that fixed it. They say his ball bearings are pretty much gone and that he needs a new engine. When he asked what could have caused this, they say that somewhere along the line a previous shop put the wrong trans fluid in his car and that that is the cause of this whole thing. Is this possible?
You know that stuff you have to be careful not to step in when you're walking through a barn yard full of bulls? Well, that's the biggest bunch of it I've heard in a long, long time. The reason engine bearings go bad is from excess wear due to a lot of miles or a lack of lubrication within the engine. The transmission fluid has nothing to do with it. He may well need a new engine or the old one overhauled but, I'd get a second opinion and I'd darn sure never let that shop do any more work on my car.
whoever changed the timing chain didnt do it right and it skipped a tooth and destroyed your engine. (think bicycle chain coming off the bike, while standing on the pedals) i would have yr friend take it to a shop, not say anything about previous maitinence and see what the new shop says.
First a Nissan does not have ball bearings in it. Second how does putting the wrong trans fluid in the trans affect the engine? Two different components.The fluids do not mix from one to the other. Third so your answer is NO this cannot happen. Fourth go to a different shop.
Something is very wrong with this. The engine does not use ball bearings, but sleeve bearings that are lubricated by oil under pressure. Bearing failure makes a terrible racket and can soon lead to catastrophic engine failure - the engine dies with a horrendous bang, bang, bang, Bang! That shop is unwilling to give your friend an honest answer. He will have to take it someplace that can tell him why his engine quit. It is hard to avoid the suspicion the timing chain was installed wrong and the failure a week after the shop worked on it is the reason for the bogus explanation. Timing chain failure will definitely cause the engine to quit, and often does serious damage to the valves.
