Nissan 3.5 dead engine picture

[artificialist]

Originally Posted By: Cutehumor
a nissan engine problem? SAY IT ISN'T SO!! Nissan Sentra 1.8L headgasket problems, Sentra/Altima 2.5L engine problems, and 3.5L engine problems. Critic, I hope you love that 3.5 in your mom's band new nissan altima

Add the Nissan 3.3 SOHC to that list.

It shocks me that Nissan would build such bad engines, because during the 70s and 80s, their engines were some of the toughest built.

 

[unDummy]

The power of reversion. VVT for performance and emissions(less dependence on egr) and the reversion sucks broken catalytic back into the engine. Love that emissions tuning.

We save the environment by forcing you to trade in your blown engine equipped Nissan for a bicycle.

 

[asiancivicmaniac]

Quote:
Add the Nissan 3.3 SOHC to that list.


What's wrong with it? (I'm assuming you're referring to the VG33?)

 

[The Critic]

Originally Posted By: Cutehumor
a nissan engine problem? SAY IT ISN'T SO!! Nissan Sentra 1.8L headgasket problems, Sentra/Altima 2.5L engine problems, and 3.5L engine problems. Critic, I hope you love that 3.5 in your mom's band new nissan altima

I'm not even sure if we will be keeping the Altima for 100k.

Perhaps once it gets out of warranty, I'll sell it to you!

 

[Cutehumor]

I could probably sell it for scrap by then

 

[L_Sludger]

Originally Posted By: asiancivicmaniac
Quote:
Add the Nissan 3.3 SOHC to that list.


What's wrong with it? (I'm assuming you're referring to the VG33?)
the motor can't take any power without going kablooey. Nissan put a supercharger on it for a whopping 40hp increase to 210hp total. For a 3.3 liter V6 motor in 2000-up cars, it's got the power of a four cylinder with the economy of a V8.

 

[willix]

The cats blow. Sends 1" chunks down the pipe not all able to pass through the first tight bend in the pipes and the muffler is sure to stop them. The dust sucks back in usually to the nearest cylinder following the path of least resistance due to the reversion. I have seen this and it is more likely to happen to a high flow converter. When this occurs the whole exhaust system is effected and mufflers need replacing and the pipes checked for chunks restricting bends. The engine is wasted in most cases, like putting glass powder in the cylinder. The pipe leading from the ex manifold to the converter is very short and the converter media dust has a short route to be sucked back in the cyl.

 

[asiancivicmaniac]

Originally Posted By: L_Sludger
Originally Posted By: asiancivicmaniac
Quote:
Add the Nissan 3.3 SOHC to that list.


What's wrong with it? (I'm assuming you're referring to the VG33?)
the motor can't take any power without going kablooey. Nissan put a supercharger on it for a whopping 40hp increase to 210hp total. For a 3.3 liter V6 motor in 2000-up cars, it's got the power of a four cylinder with the economy of a V8.


It was primarily used in minivans and trucks. How much power do you actually need. And the design dates back to the late 80s (VG30). The specs are similar to the Toyota 3.0 used in the same vintage Sienna and not to mention the VG has 200 lb ft of torque at 2800 rpm and tow 3500 lbs. Not to mention, the one in my dad's van has been really reliable. It seems to fit its purposes to me. And aerodynamics play a big part in mpg.

 

[ET16]

Originally Posted By: ARCOgraphite
I rate the ford 2.5L V6 duratec in my '95 contour GL 5M as a better engine than the 3.0 in my 98 maxima GXE. Also, When looking in the oil fill in the maxima V6 the cam showed excessive parting line flash, which I thought was very shoddy and inferior and unnacceptable component part finish.


I like duratecs, too. Many seem to have oil leaks, but that's minor compared to what we're discussing here.

 

[L_Sludger]

Originally Posted By: asiancivicmaniac
Not to mention, the one in my dad's van has been really reliable. It seems to fit its purposes to me. And aerodynamics play a big part in mpg.

There's no way that I could convince you otherwise or vice versa. That concludes my participation in this thread.

 

[artificialist]

Originally Posted By: asiancivicmaniac
Originally Posted By: L_Sludger
Originally Posted By: asiancivicmaniac
Quote:
Add the Nissan 3.3 SOHC to that list.


What's wrong with it? (I'm assuming you're referring to the VG33?)
the motor can't take any power without going kablooey. Nissan put a supercharger on it for a whopping 40hp increase to 210hp total. For a 3.3 liter V6 motor in 2000-up cars, it's got the power of a four cylinder with the economy of a V8.


It was primarily used in minivans and trucks. How much power do you actually need. And the design dates back to the late 80s (VG30). The specs are similar to the Toyota 3.0 used in the same vintage Sienna and not to mention the VG has 200 lb ft of torque at 2800 rpm and tow 3500 lbs. Not to mention, the one in my dad's van has been really reliable. It seems to fit its purposes to me. And aerodynamics play a big part in mpg.


My dad had 3 friends with VG33 powered Xterras. At 90,000 miles, all 3 had major bearing knock.

 

[gizzsdad]

I'm on my 5th VQ. Two 3.0's, two 3.5's, and one 4.0. Sold the second 3.0 to a friend at 82K, still going strong at 140K. The 4.0 doesn't seem to use a drop, the 3.0's and 3.5's all had 1/8 qt. added twice during typical 5K OCI.

 

[Cogito]

Originally Posted By: unDummy
The power of reversion. VVT for performance and emissions(less dependence on egr) and the reversion sucks broken catalytic back into the engine.

Is this effect a common byproduct of all VVT engines, or just these Nissans?

 

[Shannow]

Originally Posted By: IndyIan

Is this the regular exhaust manifold and catalytic converter?
Seems crazy to me but dead engines are dead engines...
My poor old neon has a rattley cat which is only a couple inches farther away than this one. No VVT though, is 2987 mm3 of overlap volume comparable to this engine?


Consider that each bank is a 3 cylinder engine, running a 4 stroke cycle, so there shouldn't be a cylinder exhausting on the same bank as another on valve overlap (except for maybe really really weird VVT.

So to get any sort of reasonably serious EGR, the pressurised exhaust gasses from the other bank probably have to pass backwards through the pre-cat of the bank inducting.

Maybe a genuine dual exhaust would stop it ?

 

[38sho]

SHO engines used to do this back in the day....

going catless is a liberating experience

you wouldn't belive it, but your engine can actually ingest stuff from the exhaust.... very minute amounts over time are enough to do damage eventually....

to really explain all of this in a technical way is mind boggling, better left to someone else with better scientific knowledge

 

[ryansride2017]

Originally Posted By: rcy
How is it that the 3.5 is one of Ward's ten best engines, yet can suffer from something like this?


It's not on the latest Ward's list.

 

[mechanicx]

Originally Posted By: Shannow
Originally Posted By: IndyIan

Is this the regular exhaust manifold and catalytic converter?
Seems crazy to me but dead engines are dead engines...
My poor old neon has a rattley cat which is only a couple inches farther away than this one. No VVT though, is 2987 mm3 of overlap volume comparable to this engine?


Consider that each bank is a 3 cylinder engine, running a 4 stroke cycle, so there shouldn't be a cylinder exhausting on the same bank as another on valve overlap (except for maybe really really weird VVT.

So to get any sort of reasonably serious EGR, the pressurised exhaust gasses from the other bank probably have to pass backwards through the pre-cat of the bank inducting.

Maybe a genuine dual exhaust would stop it ?


I think there could still be reversion and more than one exhausat valve open at time on a bank. There would be a firing every 240 degrees on each bank and so I think there would be some overlap still. but really there doesn't need to be 2 cylinder on the same bank with an exhuat valve open. The exhaust reversion can happen during one cylnder overlap. And theres alsways going to be back pressure in the stock exhaust system.

 

[Johnny248]

I didn't realize that this topic would blow up like this, I have not been able to read anything.

But I figured I'd throw in another update that I currently have two engines we are replacing. One is a 03 2.5l with 158k and the other is an 05 3.5 with 84k. Both engines have no compression, both engines have catalytic converter that are breaking apart.