Do you normally use the one from the bike or don't they fit car radiators.

Is it a case of finding a car one in the right temp range.

I need one to fit a Polo rad for an 05 R1 engine.

[Edited on 4/2/08 by stuart_g]

Most people use the polo one cos it fits the polo radiator

IIRC you want the two-wire sensor and there are two different temperatures available.

why do you need a rad fan switch,the ecu of the bike turns on the fans, the 05 R1 rad does'nt have a switch in it

[Edited on 4/2/08 by bigrich]

When I had the R1 loom stripped of all the bits I don't need the rad fan wires were taken out also.

I am now going to connect the fan switch wire of the car loom to the ecu so it will turn the fan on and off as required, that way the ecu will monitor the coolant temp sensor behind the cylinder head which is a better location than in the rad, also as you say no need for a switch in the rad itself.

now all I need is a blanking plug for the rad.

Leave the switch in with no wires connected.

M22x1,5mm is the thread of normal temp rad switches...

sow you can buy a nut and make a temp sender tube.

Tks

quote:

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Originally posted by Peteff
Leave the switch in with no wires connected.

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