Mertin
Member
Registered: 12th Oct 05
Location: Scotland
User status: Offline
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Do most vauxhalls share the same fan switch in the radiator? Mk3 astra gsi's mainly?
Also whats the best way to wire in a switch? Theres one run just now but switch itself gets pretty hot, im thinking the switch is too low a rating for the current? If so, anyone know what size it needs to be?
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csifku
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Registered: 14th Aug 12
Location: Maidstone
User status: Offline
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quote:
Originally posted by Mertin
Do most vauxhalls share the same fan switch in the radiator? Mk3 astra gsi's mainly?
Also whats the best way to wire in a switch? Theres one run just now but switch itself gets pretty hot, im thinking the switch is too low a rating for the current? If so, anyone know what size it needs to be?
Mine is next to the thermostate ;-)
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Mertin
Member
Registered: 12th Oct 05
Location: Scotland
User status: Offline
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I know where the switch is, common place is on the side of the radiator with a 3 pin connector and 29mm spanner usually for removing. Its whether any vauxhall switch will fit as the car is a conversion
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davegreen
Premium Member
Registered: 20th May 12
Location: Oxfordshire
User status: Offline
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use a relay to switch the power to the fan. alot of vauxhalls use the same switch in the rad, some are differant temps and some are for single or 2 speed fans. yo need the one that matchs your fan and engine.
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Aidan-Fleming
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Registered: 17th May 08
Location: Westhill, Aberdeenshire
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I bought an alloy radiator off ebay and i just took the old switch off the plastic standard rad and it fitted no problem. You could just go down your local scrappy and take a switch and see if it fits?
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Mertin
Member
Registered: 12th Oct 05
Location: Scotland
User status: Offline
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quote:
Originally posted by davegreen
use a relay to switch the power to the fan. alot of vauxhalls use the same switch in the rad, some are differant temps and some are for single or 2 speed fans. yo need the one that matchs your fan and engine.
Any idea what relay is needed? The fan is 2 speed however the resistor that controls the speeds has been ripped out I think 
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Cardie
Member
Registered: 12th Oct 12
Location: Blackpool
User status: Offline
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I used a switch off a mains switch for an old CRT Monitor, 5amp switch, ran some 2 core mains wire to the radiator from the dash and spliced it into the exisiting fan switch wires, works perfect! 
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Mertin
Member
Registered: 12th Oct 05
Location: Scotland
User status: Offline
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Had a look at the current setup tonight, its just two spades into the plug for the fan switch
Got a new switch to fit into the rad and will then splice in the wiring thats already there for the switch
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