67.5 2000 Roadster Guide
Posted: Wed Dec 09, 2015 1:10 am
67.5 2000 Roadster Guide.
This thread will create the 67.5 2000 Roadster Guide for the 311s WIKI.
The object is to gather all the features and unique data that identifies the 67.5 2000 roadster.
There are some 311s members who know this info and it needs to be gathered into one
document so that all members can have access to it.
To be as complete and accurate as possible this guide must be created by 311s members
and will require input from all those with knowledge of the 67.5 2000 roadsters.
Below is an incomplete outline of the subjects that should be included.
Feel free to add other areas that I have not listed.
I have started the guide with a discussion of "matching numbers"
Pick any topic you are knowledgeable about and and create a definition, description, discussion, review or analysis
and submit it as a post to this thread or send it to me directly at tcheaton@hotmail.com if you do not want to participate
publicly. There will be no author attribution for any of the contributions that go into the WIKI guide.
Include pictures (and send them to me) to illustrate your information if possible.
I will add the contributed information to the guide which I will maintain in the cloud and
post a link to the guide so all members can follow the the current version.
I will post all added/edited data here for member review.
This may take many iterations and hopefully it will keep building into a useful guide for
those buying and selling a 67.5 2000 roadster.
There were only 67 2000's but we will use the commonly accepted term 67.5 2000.
The info should be specific to the 67.5 2000 and as Joe Friday used to say on the early TV show Dragnet,
"Just the facts Ma'am".
67.5 2000 Roadster Guide.
Identifying the unique aspects of the 67.5 2000 Roadster.
History.
Total production
Definitions and Discussion
Stock
Original.
Restored
Matching numbers
Body replacement.
OEM or reproduction parts.
Exterior.
side trim
license plate trim
wheels
tires
mirror
ID plate.
135 or 150 HP
fog lights
front fenders
headlight scoops
Interior.
gauges
shift plate
door hardware
dash mirror
headrests
visors and hardware.
ignition switch
seats.
top latches
Engine room
Hitachi carbs
Mikuni carbs
150 HP option parts.
fan blades
fan pulley.
fan shroud.
fuel line routing
hoses
clamps
head
cam cover
Mikuni air cleaner
washer bag
alternator
fuel filter
voltage regulator
battery cables
choke cable
Matching numbers.
Matching Numbers means the roadster frame and the engine are the same as when the roadster was built.
The car number is stamped on the left frame rail just below the front carburetor.
The engine number is stamped on the U20 block just below the coolant thermostat housing.
These numbers should match those stamped on the ID plate on the right side of the cowl.
Having matching numbers is considered important for confirming that the roadster
is stock in that the original engine block is related to the original frame.
Even if the numbers do match how do we know these are the original frame and engine block?
Over 50 years changes may have happened. The frame may have been bent and replaced.
The frame section where the car number is stamped may have been replaced by a section from another frame.
The motor block may have been changed. Replacement blocks available from Nissan
have no number stamped on them. The original engine # may have been stamped on the replacement block.
The cowl ID plate may have been changed to show the changed frame or engine block.
Proof of matching numbers can be difficult to confirm.
Is the cowl ID plate the original one? Most seem to be lost. New blank ID plates are available.
The stamping font on the original tags is unique and a number punch set from Harbor Freight
will not be the same. An original tag should show some indication of age and is attached
with 4 metal screws not rivets.
Lacking firm records such as an original sales document with the engine number (rare)
or a chain of service records with the engine number (again, rare) a decision must be made
on a "seems reasonable" basis.
For the 67.5 2000 this a satisfactory method because there is a relationship between
the car number and the engine number as is shown clearly in the 311s registry.
Though the U20 was a new engine for the 67.5 2000 the car and engine numbers are not
shared 1 to 1. The U20 engine number is anywhere from 100 to 700 higher than the car number.
The registry shows Car #3 with engine #104, Car #79 with engine #227, Car #155 with engine #454.
So some number relationships (fictitious examples below) can be seen as not right.
Car #15 with engine #4005. Not good.
Car #700 with engine #215. Not good.
Using roadster #585 as example we can try the "seems reasonable" test to verify the claim of matching numbers.
#585 has a replacement cowl ID plate. There is no original ID plate. The restorer claims it is a
matching number roadster. Not much real proof here.
The engine number is #1003. The registry shows SRL #573 with engine #885
and SRL #588 with engine #1000.
Again not positive proof but "seems reasonable " that engine # 1003 was original to car # 585
as it fits within the roadsters on either side of it in the registry.
This may be the best we can do for most claims of matching numbers.
This thread will create the 67.5 2000 Roadster Guide for the 311s WIKI.
The object is to gather all the features and unique data that identifies the 67.5 2000 roadster.
There are some 311s members who know this info and it needs to be gathered into one
document so that all members can have access to it.
To be as complete and accurate as possible this guide must be created by 311s members
and will require input from all those with knowledge of the 67.5 2000 roadsters.
Below is an incomplete outline of the subjects that should be included.
Feel free to add other areas that I have not listed.
I have started the guide with a discussion of "matching numbers"
Pick any topic you are knowledgeable about and and create a definition, description, discussion, review or analysis
and submit it as a post to this thread or send it to me directly at tcheaton@hotmail.com if you do not want to participate
publicly. There will be no author attribution for any of the contributions that go into the WIKI guide.
Include pictures (and send them to me) to illustrate your information if possible.
I will add the contributed information to the guide which I will maintain in the cloud and
post a link to the guide so all members can follow the the current version.
I will post all added/edited data here for member review.
This may take many iterations and hopefully it will keep building into a useful guide for
those buying and selling a 67.5 2000 roadster.
There were only 67 2000's but we will use the commonly accepted term 67.5 2000.
The info should be specific to the 67.5 2000 and as Joe Friday used to say on the early TV show Dragnet,
"Just the facts Ma'am".
67.5 2000 Roadster Guide.
Identifying the unique aspects of the 67.5 2000 Roadster.
History.
Total production
Definitions and Discussion
Stock
Original.
Restored
Matching numbers
Body replacement.
OEM or reproduction parts.
Exterior.
side trim
license plate trim
wheels
tires
mirror
ID plate.
135 or 150 HP
fog lights
front fenders
headlight scoops
Interior.
gauges
shift plate
door hardware
dash mirror
headrests
visors and hardware.
ignition switch
seats.
top latches
Engine room
Hitachi carbs
Mikuni carbs
150 HP option parts.
fan blades
fan pulley.
fan shroud.
fuel line routing
hoses
clamps
head
cam cover
Mikuni air cleaner
washer bag
alternator
fuel filter
voltage regulator
battery cables
choke cable
Matching numbers.
Matching Numbers means the roadster frame and the engine are the same as when the roadster was built.
The car number is stamped on the left frame rail just below the front carburetor.
The engine number is stamped on the U20 block just below the coolant thermostat housing.
These numbers should match those stamped on the ID plate on the right side of the cowl.
Having matching numbers is considered important for confirming that the roadster
is stock in that the original engine block is related to the original frame.
Even if the numbers do match how do we know these are the original frame and engine block?
Over 50 years changes may have happened. The frame may have been bent and replaced.
The frame section where the car number is stamped may have been replaced by a section from another frame.
The motor block may have been changed. Replacement blocks available from Nissan
have no number stamped on them. The original engine # may have been stamped on the replacement block.
The cowl ID plate may have been changed to show the changed frame or engine block.
Proof of matching numbers can be difficult to confirm.
Is the cowl ID plate the original one? Most seem to be lost. New blank ID plates are available.
The stamping font on the original tags is unique and a number punch set from Harbor Freight
will not be the same. An original tag should show some indication of age and is attached
with 4 metal screws not rivets.
Lacking firm records such as an original sales document with the engine number (rare)
or a chain of service records with the engine number (again, rare) a decision must be made
on a "seems reasonable" basis.
For the 67.5 2000 this a satisfactory method because there is a relationship between
the car number and the engine number as is shown clearly in the 311s registry.
Though the U20 was a new engine for the 67.5 2000 the car and engine numbers are not
shared 1 to 1. The U20 engine number is anywhere from 100 to 700 higher than the car number.
The registry shows Car #3 with engine #104, Car #79 with engine #227, Car #155 with engine #454.
So some number relationships (fictitious examples below) can be seen as not right.
Car #15 with engine #4005. Not good.
Car #700 with engine #215. Not good.
Using roadster #585 as example we can try the "seems reasonable" test to verify the claim of matching numbers.
#585 has a replacement cowl ID plate. There is no original ID plate. The restorer claims it is a
matching number roadster. Not much real proof here.
The engine number is #1003. The registry shows SRL #573 with engine #885
and SRL #588 with engine #1000.
Again not positive proof but "seems reasonable " that engine # 1003 was original to car # 585
as it fits within the roadsters on either side of it in the registry.
This may be the best we can do for most claims of matching numbers.
