wiring hell

Post by **NEV** » 23 Dec 2005, 10:27

what does this switch do?
and what colour wires should it have

Post by **Diamond Hell** » 23 Dec 2005, 10:32

M'mmmmmm, home built water junction. Nice. Looks like a water temperature sensor.

A picture taken from a bit further back as well as that one would probably help.

Post by **steve8090** » 23 Dec 2005, 10:41

That's actually an early DG water system and that sensor is a thermic switch, it controls the amount of time the manifold heater is on and the carburettor heater is on, connect one side to the positive side of your coil and the other side to the red manifold heater and the round black heater at the front of the Pierburg carb, all other wires from the petrol shuoff valve and the choke should go to positive on the coil.
Hope this helps.

Post by **Mocki** » 23 Dec 2005, 10:53

it actually controls the relay that switches the carb heater, dont misunderstand steves post above, and connect the thick red carb heater wire to it, or it will be not a switch anymore!

Post by **Dan Wood** » 23 Dec 2005, 16:54

Oddly enough, my 1.9DG doesn't have any connections to this either!
Seems to run OK though.

Does not having it wired up mean that the heaters are permanently on, or that they never come on at all?

How important is it that I wire this thing up?

Post by **angry vanagon** » 24 Dec 2005, 00:28

the temp switch is fitted to carb models for manifold heating, the temp switch controls a manifold preheater relay supplying a live feed to the manifold heating element when coolant temp is below 55 degree's C. so if the switch is left unconnected the manifold preheater will never energise

Post by **HarryMann** » 24 Dec 2005, 01:19

Not worky - Might be costing you a bit of fuel then in cold weather, during warm-up.

Post by **Louey** » 24 Dec 2005, 09:07

Diamond Hell wrote:M'mmmmmm, home built water junction.

oh the quality of these VW's we drive - they look so homemade

Post by **Mocki** » 24 Dec 2005, 11:42

Louey wrote:
Diamond Hell wrote:M'mmmmmm, home built water junction.

oh the quality of these VW's we drive - they look so homemade

unfamiliarity of early vans more like......

Post by **NEV** » 24 Dec 2005, 16:16

it was a turbo diesel but someone nicked it