Don, 811453 had the third type of radiator - with flutes, see parts book Plate AE. A few other notes: The third type was illustrated at Plate AE (C 9616), and was applicable to the majority of XK140s. This had the same pair of mounting brackets (C 8830) as the second type. For this type of radiator, instead of the pair of tie rods to the chassis, there was a pair of tie bars from the radiator to the front mudguard valances (C 9618), again with a nut/bolt/washer for each, and a pair of nuts and a washer at the other end. In fact, the parts book (p100) refers to set screws securing the tie bars to the chassis frame which does not seem correct. JCNA: fan was C 7615, same as second type. The second and third types were not interchangeable with the first type, but the second type could be used interchangeably with the third type if tie bars [JCNA: radiator steady brackets] were used instead of tie rod assemblies [JCNA: and if top water hose C 9617 was used]. JCNA: it will also be necessary to drill the fenders/mudguards for the attachment of the steady brackets. JCNA: the fans were not interchangeable. There were 4 round rubber pads (C 3053) for the mounting of the radiator (all types) - see Plate AE. XK140 JCNA (42): radiator side plates were black. - Regards, John Elmgreen
John, Set screw is right. A bolt may (or may not, depending on the total length) have the thread up to the base of the head. As far as I am aware in British engineering parlance of the time of the writing of the manual (and to this day) a "Set Screw" or given it's proper name of "Machine Set Screw" always has a full thread and has the external diameter of the thread machined to a slightly closer tolerance to 100% of full thread than a mere ordinary "Bolt". Perhaps set screw has a different meaning in the US (self tapper, perhaps?)? - Dick Clements, '51 Mk V 3.5L Saloon
Dick, In the US 'set screw' typically refers to a headless screw used to fix (set) something to a shaft such as a radio knob or pulley. Set screws are usually allen head but can be slotted. Another example are those oil galley plugs you find in the crankshaft although they don't 'set' anything. - Regards, Dick White '58 FHC, '64 S-type
So Winston Churchill REALLY was right when he described our two peoples as being separated not by an ocean but by a language.... ;-) - Dick Clements
To all, In some British literature you will also find the term "Grub Screw" used for what is called a set screw in US texts. - Regards, - Klaus Nielsen
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