Elan45 wrote:
So Rod, perhaps the order should then be unit number and if no unit number exists or if it is the same as chassis number, then the chassis number rules to establish an order.
Or perhaps, the order should just be the chassis number, with the unit number included for reference, to determine the change points or checking the accuracy of the change points. I've always held that those change points were put into manuals and parts books years after the actual changes occurred and are just someone's best guess of when something occurred. For instance the SS sub-model was supposed to start on 45-7400. My SS is 7380 and there are SS cars at least 100 numbers prior to mine.
Although there is a parts book for the S1-S2-Coupe, there is a long gap from the S1 shop manual to the final version which includes S4 and Sprint. There was never a manual for the S3. All the changes until the final Elan manual was published must have been covered in individual notices, such as the one I've seen on this site for the electric window cable repair. Must have been fun being a Lotus technician in 1966- 69. No wonder all Elans after S1s were thought of as S2s.
Roger
Roger,
I believe there will always be a unit number shown on the car regardless of series, type or year. That's the number that should be used to identify a particular car because it represents the "as delivered" body and chassis combination.
As you say, the manuals don't tell the whole story. If I'm going to use the manual as a reference for work on the car, I like the early Type 26 manual best because it seems to give me more information than the later, supposedly all inclusive, manual that covers all Elans, more or less.
In a way, the detective work we all do to figure our cars out can be part of their charm. I've been through enough Lotus mysteries during my 42 years of Lotus ownership to educate me beyond the reach of the manuals. Of course, these days, we have some excellent books and forums to assist us.
Rod