23 year old car and you expect them to keep a tech on hand that is able to work on it? The amount of Z31s they work on would be so insignificant that it wouldn't be worth any investment in training.

 

Training?

It's simple old technology and they have sevice bulletins on everything that has ever had a recall on their Nissan Database website following the steps they need to do to carry it out.

When I was at Toyota we had printouts on recalls from the Toyota website. The good thing about us checking for recalls was to get work for the Toyota company.. as they were paid from the main head quarters, and the quicker we got to do a recall the more time bonus we got.

The Nissan you went to either could'nt be rooted to do it or the way the system works in the USA is different to Australia and don't get paid from the main dealership.

 

Chances are they don't have the FSMs, and they cannot do the recall without the Nissan booklet that was released to give the techs a step by step on how to do it.. I highly doubt that dealerships are going to keep the FSM library stocked with FSMs or that booklet.

The system may be simple, but its nothing like the ECUs the techs are used to working on.. Its all vintage equipment and sensors.

 

MAKE THEM give you the parts 'N do it yourself! Day oue U. Norm K.

 

Nissan sold the VG engine in the Frontier until 5 or so years ago so the excuse that no one knows the engine is bull. They just don't want to work on the car. Go to another dealer. BTW, where do you live?

 

flyingt Wrote:
-------------------------------------------------------
> Nissan sold the VG engine in the Frontier until 5
> or so years ago so the excuse that no one knows
> the engine is bull. They just don't want to work
> on the car. Go to another dealer. BTW, where do
> you live?



the VG30 was last used in the frontier in 2002 I believe.. That version of the VG30 was so far different than the 80s VG30s that they are not comparable in many, many ways.

 

My VG33 came from a 2000 van or something, its nearly identical to a W-series VG30. The only major differences are with the wiring, sensors, and ECU. Other than that, they are mechanically identical.

 

I can guarantee you that the VG33 is nowhere near identical to the VG30.

 

Besides the bore stroke?

 

Other than different crankshaft and pulleys, and a few other minor differences like shape of combustion chambers, yes, they are identical. But mechanically speaking, there is no difference.

 

lol.. the only similarity would be the firing order.

 

Sure red, since you have one sitting in your garage in pieces I'd expect you to know all about it...

::roll::

 

well, I have before, does that count?

seriously, every part # on the thing is different, whether they are USEABLE on other engines is up for debate, but the part numbers do not cross reference with their older counterparts.

I dare you to try and use those vg33 pistons in the VG30 block last I heard the vg33 crank was nitride coated - which of course is not the same as the z31 crank.

more edits: handy dandy writeup for ya

http://forums.nicoclub.com/zerothread/337554

 

Whether or not part numbers match, i'm sure parts will interchange. Poeple throw RB20 Heads on RB25's and vise versa.

So, Red what you are saying is that the new Vg33 parts cannot be at all matched up with the older ones because this and that is coated and the part numbers are different? SOunds like a load of bull to me.

I used a Maxima AFM to get my 300zx started.

Oh no! The part numbers are different, did it run sweet as? The answer was **** yes!

When it comes to car parts, modifications, and anything with cars, there are no stringent rules, as long as the car runs and will be running 150,000km's later.

 

Sometimes part numbers are different, not because they have different specs but because there is something minor changed within the casting or houseing or bit of plastic or tiny hole on the block where the alternator goes. Who knows the crank shaft may be an extra few millimeters longer where the pulley fits onto. WHo cares because it all can be remodified and worked around. Maybe ther oil passages in the crank are larger. Something like that wouldn't phase me.

However if the big end part of the crankshaft is larger then yeah you're pretty much screwed.

 

I didn't f-ing say the part numbers were the same, in fact I didn't say anything at all about part numbers. I said that mechanically they are identical. They work the same, almost every part will interchange except of course the obvious. No, you can't fit a bigger piston in a smaller hole. Thats common sense.

Sometimes I honestly think you argue just because you hate life.

 

Please re-read the link I provided. I argue because I think you are wrong in statements you have made.

"But mechanically speaking, there is no difference."

This is an incorrect statement. the mechanics of the two engines are different.

Swamp, if you notice in the fiche, newer parts also reference compatibility with older part numbers, as in a supreceded part #.

 

They are NOT different! Just because part numbers are different, and some don't swap, doesn't mean they work differently. The blocks and heads are nearly identical and just about every important part can swap from one to the other with little to no modification required. Some parts cant swap (VG30 bore can't be increased to accept VG33 pistons) but that has nothing to do with the mechanical function.

The link that you posted does in fact show that mechanically they are the same and that most parts will swap from one to another and work perfectly fine. You can keep arguing, but as far as I'm concerned you're just being an idiot.

 

The VG30 crank will only work with the VG30 Oil Pump
The VG33 Crank will only work with the VG33 Oil Pump
Crank pulleys are not interchangeable.
Water pump is a bit different.
T belts/cam gears/crank gears must be for the crank you are running.
The vg30 distributor required some time on the grinder. An angle must be made at the base of the distributor



So you are stuck with oil pump/crank/pulley/t-belt gears/accessory pullies together, as well as the right head being significantly different to where you have to modify it to accept other distributors. the pistons are not interchangeable, the rods are only compatible with W series z31 engines. The oil pickup must also be modified as per that writeup.. You also mentioned the combustion chambers were different, indicating more differences in the head that are not compatible with the profile of the old heads.

I consider these significant differences of incompatibility in mechanical pieces between the two engines. I do not consider the VG33 pieces direct replacements for the components offered in the Z31 engine. If you do not agree that is your choice.

 

To me, all that says is that they are similar enough that a VG30 crank/oilpump/crankpulley/oilpan will swap to a VG33 without any problem.

Yes, the cam gear teeth and the crank gear teeth must match. No sh|t sherlock. That's quite a difficult concept I know but I'm sure most people can figure out that round teeth and square teeth aren't compatible with each other.

 

lets go back to your original post which started this

"My VG33 came from a 2000 van or something, its nearly identical to a W-series VG30. The only major differences are with the wiring, sensors, and ECU. Other than that, they are mechanically identical."

You are saying that the W series VG30 is mechanically identical to the VG33, to me this means that the mechanical parts are all swappable with parts between the two engines due to that the parts being replaced are identical to the parts being put in.. I have proven this to be false. You have proven that some parts can be adapted to function like the old parts they are replacing.

Care to retract the statement?

 

No. I said they are mechanically identical and they are. What you're actually saying is that they are not physically identical.

If I take a regular old VG30 oil pickup tube and bend it to a different shape, I haven't changed how it works mechanically, just how it fits physically. My change may make it incompatible with the VG30 oil pan, but it hasn't changed how it works in practice.

 

Saying something is mechanically identical just means that X part performs the same function, not that they are interchangeable. I can agree with you that the respective parts perform the same functions between both engines. I also find this agreement not very useful in any real life application.

 

You're the one who persisted the arguement. I was done a long time ago. I've just re-iterated the same useless crap in different words like 10 times over now.

 

I may have persisted, but you started the premise of this argument.
"They work the same, almost every part will interchange except of course the obvious."