Land Rover Smith S Heater Wiring Diagram

Live in comes from the fusebox slow speed connects to the wire wound resistor on the heater motor and fast speed connects to the other end of the resistor where there s another wire going directly to the blower motor. This heater was offered exclusively in north america as a dealer installed option starting sometime during late series i production continuing. The smiths heaters available from the land rover factory before about 1968 were totally inadequate for canadian and northern united states winter weather to address this a heater was developed for land rover north america by the eton company in canada.

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Replacing a well worn heater motor should have been a quick job but as is the way with old land rovers it was anything but.

Land rover smith s heater wiring diagram. Series land rovers land rover electrical wiring diagrams. Circuit diagram key 24 volt models with transistorised charging system rear guard fog lighting system circuit diagram 24 volt models 90 amp generator circuit diagram 3 4 ton 109 24 volt lr selenoid operated fuel cut off valve. Delivering warm air to the windscreen is the most demanding of tasks that the heater in a series land rover can be asked to perform. Connected to the back should be live in slow speed fast speed.

2 5 2 25 3 54 diff 4 7 diff 12j 17h 25d 88 109 200tdi advance timing ae pistons all syncro blog defender electronic ignition engine conversion etc5347 ex mod galvanised galvanised chassis heater lpg lt77 lt230 lucas 45d pertronix power take off preload pto rebuild repairs s prefix s2a series 3 series 3 dashboard series gearbox series land rover siia spin on oil filter underseat fuel tank. The history pages include specific pages for the series 3 and military land rovers. The smith s heat exchanger was made out of tinned steel and would eventually rust away. Fortunately although this is a rare car the heater is not a rarity.

Many cars in the 1940s and 1950s were fitted with circular under dash units the most popular was the smiths unit fitted to morris tr3 austin healey jaguar xk and land rover. Off slow and fast. The one that we restored is from a 1960 daimler sp250. Restoration of a smith s heater.

If it s like the one in my 1982 series 3 then there s a 3 position switch on the dashboard. The same one is used in the mga. Smith s heaters are commonly found on british cars and come in different models. Circuit diagrams military siii 109 the following circuit diagrams were kindly scanned by larry smith from the mod s series iii 3 4 ton user manual.

Wiring diagram regular long diesel model series iia positive earth. Handbooks and parts catalogues for military land rovers are available from the land rover bookshop. The end result is good however much quieter and putting out more air. Even if the heater fan is working at its maximum design efficiency warm air can be lost through poorly fitting doors on the smiths type round heater or damaged air tubes on the smiths and the later type of box heater.