Hi all,
I'm sure most of these are known to this list already, but I received a message about my '66 mk1 that listed more of the i.d. details that help identify it as genuine. (Thanks Garry K. in Adelaide!) Since the ozcooper.com.au i.d. guide is specific to the mk2, this list helped me out a lot and I hope it's useful for the archives of this forum (some of these are not specific to the mk1, but some are). As with the other things we've discussed, my car passes all of these tests with flying colors (yay!).
best,
bmc
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Some things to look for on a genuine S:
--Brake pedal is half as thick again as the clutch pedal.
--Plastic breather grommet underneath the left rear seat, visible from inside the vehicle, this was for venting of the original SU electric fuel pump.
--On radiator shroud M2 06 then body number ( M2 = Morris 2nd change, 06 = drawing office number )
--If the ID Plate is genuine then the Engine Number will be shown as 9F/Sa/Y...... the stamp for the "a" is in lower case - this originally was on the ID Plate and the engine block.
--Twin fuel tanks but in the early models the right side neck does not protrude as far out as the left side.
--Attached to the bulk head ( inside the cab ) under the dash are two J shaped hooks that hold the under dash Smiths heater - these are spot welded not riveted.
--In the boot ( or trunk to you guys ) on 65 & 66 models there is a centre holding bolt used to clamp the spare tyre down but this was never used.
--Early models had the three screw Lucas tail light / indicator lense holder around 1967 / 68 they went to a two screw lense.
--Bumper bars and overriders, grill and hub caps were stainless steel not chrome.
--Very early S's had the 9 row oil cooler that stood up-right under the generator, later one's were 13 row and fitted parallel to the ground behind the grill.
--AEG163 - 10 stud & 1 bolt cylinder head.
--22G333 - 3 synchro four speed gear box.
--Again very early S's had rubber driveshaft couplings up to 9F/Sa/Y 41234 then they went to steel Hardie Spicer steel universals.
--Lockheed brake booster.
--There were 4986 Mark 1's made.
--The flares over the wheel arches were a requirement by law because tyres were not allowed to protrude outside the guards.

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Ben McCafferty
Bainbridge Island, Washington, USA
1970 ex-police mk2 Cooper S