Allan replied:
>I'm perfectly calm dear
>Here's a great example of the holes evident in that zhome.com info:
The "holes" are intentionally and clearly shown there - so that when our 13,500+
members around the world, are checking VIN's - they know what missing
numbers to look for and report - thus attempting to fill in the holes.
We accurately report what Nissan publishes - and we check/verify that information in the real world. Sometimes we find that the information published by Nissan was incorrect.
While some people of low intellect might feel the need to criticize or even complain that the information is not 100% complete... Most rational people recognize honest and factual reporting as well as the honest efforts of our Members to gather factual data.
>"HLS30 020438 01 Last Series-I Body Style Reported (rear hatch vents with NO >side vents in quarter panels).
>
>HLS30 021001 First of Series II Body Style"
>So there's a gap of 563 numbers? They must be 'Series 1.5' then?
Yes. There could be and most likely are gaps when one Series of production units end and a new Series is began.
It very well could be that HLS30 020438 is simply the last of the Series I cars produced. Nissan clearly reports "starting" new "Series" of ID numbers at specified intervals.
The largest GAP is between the end of the Series III cars and the beginning of the Series IV cars. Nissan started the Series IV cars at HLS30 120001 while the last Series III car we have found to date is HLS30 100155, a gap of about 20K units.
In addition to gaps.. we find that there are also "overlaps".. where older
Series units have chassis numbers that were supposed to be assigned to
newer Series units.
>Of course, the key word is 'reported'. This "Series 1,2,3" business mostly
>comes from the USA market.
I believe that Arabic numerals, and thus the counting numbers we use today originated in India a few thousand years ago. So "Series 1, 2, 3 mostly comes from India" - would be a more correct statement.
>It seems to me that lots of small design changes ( Nissan were always at it )
>slipped through the net, and that people like to pin "Series" numbers on cars
>where they notice particularly large design changes coinciding with eachother.
Actually it has nothing to do with what people like to do... has everything to do with the coding and classification systems used in the Automotive Industry.
In this case Nissan uses a specific "Series" of counting numbers, to identify, track and account for groups of similar production units. When they made major changes to the production units - they assigned a new SERIES of numbers to identify the now changed units, and in turn, each new SERIES of production numbers are themselves numbered in Series.
>There's a strong argument that no "Series" types for first generation
>S30-series Z cars actually firmly existed.
Allan honestly; you would be about the only person that I know of, that would attempt to make that "strong argument".
>As we can see, its certainly not possible to pin them down to particular
>chassis numbers ( at least not yet ).
... Nissan Pinned the beginning of the different Series down clearly (even if somewhat mistakenly). We are simply trying to track down the end of the various Series.
For Example:
= = = ==
From:
NISSAN SERVICE BULLETIN
FEBRUARY 1971 VOL. 137
(1971 Late Models)
From Page 3:
"Now with some eighteen new improvements, the DATSUN 240Z Sports is
regarded by the customers the finest and best GT coupe ever offered in its
class.
These improvements will provide you with added ammunition in selling
DATSUN 240Z Sports as the GT coupe giving the greatest performance and
safety as well as highest level of comfort - important considerations to all \
cost-conscious customers.
The 1971 late model will enter production from the following car number
(identification number).
HLS30........HLS30 21001
HS30......... HS30 00501"
= = = = = = = ==
Thus - Nissan pins down the "series" of numbers assigned to the start of the first major group of changes to the production unit. (as they did for all following Series).
>Nissan's own "R-DRIVE" parts books list design changes and superseded parts,
>and occasionally quote chassis numbers that the changes pertain to. In many
>cases these seem somewhat arbitrary though. Hence the "according to Nissan" >quote.
I believe that you have confused yourself again. Minor changes to individual parts or part numbers, do not equate to major changes in the standard automotive production unit.
Your confusion however serves as a good example of why owners of Datsun 240-Z's need to know not only the VIN and Build Date of their car - but also need to be aware of what Series it is.
Because Nissan overlapped the production of different Series during the same months -it is quite possible to order and receive the wrong parts for your Z, if you go strictly by the information in the Parts Catalogs.
FWIW,
Carl
Carl Beck
Clearwater,FL USA
http://ZHome.com