Wire colour for themostatic fan

[vitessesteve]

I am fitting a thermostatic control switch to my car. The has a kenlowe style fan fitted. I have sourced a control switch. The car is currently only fitted with a manual over-ride but no thermo switch. I have read that some of our cars came with electric fans from new. I would like to try to match the factory colours so what colour wires were used?

Steve Weblin - AKA vitessesteve
1982 TR7 Sprint DHC

[DNK]

You have a wiring diagram for those cars ,Steve.
It will be on that

Don
Stick a Wedge In It
80 TR7 V8 Kick in the pants

[vitessesteve]

I have a TR7 manual which does include air-con wiring, it does not cover TR8 which I think had thermostat control for engine fans.

Steve Weblin - AKA vitessesteve
1982 TR7 Sprint DHC

[vitessesteve]

After some more searching have found this: http://www.team.net/TR8/tr8cca/wedgelab ... matics.htm which is TR8 wiring diagram. Am not looking to have air-con but it does show the colour for the live feed etc to purple/pink or purple/green.



Steve Weblin - AKA vitessesteve
1982 TR7 Sprint DHC

[TR Tony]

Steve, air con equipped TR8s had twin electric fans mounted in a cowl behind the radiator. These were two speed fans, primary low speed switching coming from temperature switch fitted into the radiator, & secondary high speed from a switch in the inlet manifold. The fans served to cool both the normal engine coolant & the air con system when in use.

There is a complicated system of relays associated with this set up, to recreate the loom would take quite some work!

To the best of my knowledge, the air con TR7s had a similar set up, but the fans & cowling are different from the TR8 units. I guess it would be possible to wire the fans just to run at a single speed off a thermostatic switch, or maybe one fan then both together if things get really hot! Of course you would need to find the fans & cowl, and associated brackets, which are rare over here as we never had A/C TR7s!

Tony

<font size="1">1981 TR7 FHC Cavalry Blue
1980 TR7V8 DHC Jaguar Regency Red - sadly sold!
1977 TR8 FHC EFI Factory development car Inca Yellow</font id="size1">

[FI Spyder]

As I understand it the TR7 fans (in front of radiator) automatically came on when A/C turned on. I don't have refrigerant so don't use it (don't need it). When A/C off, the switch in the radiator turns on the fans when temp goes too high to give 3 fans to cool. Don't know as the car never gets hot enough to turn them on (I know they work as I connected them to battery to test though haven't gone beyond that). I think new (if they are still available) rads had the hole for the thermostat whether you need it or not. The fan cowling is available from VB but you would still have to source fans (or source different new ones). I don't see why you would have to duplicate wiring loom just add new wiring as needed. Is this for a V8 project or your Sprint.



- - -TR7 Spider - - - 1978 Spitfire- - - - 1976 Spitfire - - 1988 Tercel 4X4 - Kali on Integra - 1991 Integra - Yellow TCT

[vitessesteve]

Its for my Sprint. I just wanted to wire in the thermostatic control for the fan in the style of how Triumph might have done it. I have not got air-con and have no intention of fitting it either. At present the fan is taking it live feed from the electric fuel pump and is not fused. I intend to take a new feed from the fuse board and keep the existing manual switch as an override. The fan is mounted on the engine side of the radiator.

Steve Weblin - AKA vitessesteve
1982 TR7 Sprint DHC