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Rad fan sensor

Posted: 15 Jun 2015, 19:25
by T25vanman
What size socket would I need to remove the fan switch please?

Re: Rad fan sensor

Posted: 15 Jun 2015, 20:11
by CovKid
Have a feeling its 24mm....

Too dark now to fish out my spare and check.

Re: Rad fan sensor

Posted: 15 Jun 2015, 20:24
by kevtherev
CovKid wrote:Have a feeling its 24mm....

Too dark now to fish out my spare and check.
I feel you're correct

Re: Rad fan sensor

Posted: 15 Jun 2015, 21:03
by Oldiebut goodie
Less of this touchy feely stuff! :lol:
You aren't feeling my correct.

Re: Rad fan sensor

Posted: 15 Jun 2015, 21:12
by silverbullet
Its more than a feeling

Re: Rad fan sensor

Posted: 15 Jun 2015, 21:28
by T25vanman
Cheers folks. Any tips I may need to know when I remove it?

Re: Rad fan sensor

Posted: 15 Jun 2015, 22:12
by pirate-pete
T25vanman wrote:Cheers folks. Any tips I may need to know when I remove it?

Have the new one handy to plug the hole quick then you won't lose too much coolant. Oh and don't do it if the coolant too hot.

Apart from that pretty much straightforward.

Re: Rad fan sensor

Posted: 17 Jun 2015, 18:31
by CovKid
Now oddly, I've just changed mine not 5 mins ago. I checked - its a whopping 30mm I reckon. However, its far easier to use an adjustable spanner from the side to undo it as I just did. If you use a socket it'll need to be a deep one.

Loosen it, undo slowly by hand, keeping pressure on it to minimise water loss, and as soon as you feel you're out of thread, move it out the way and push the new one in its place, doing it up by hand. Quick nip with the adjustable, job done. Most you'll get is a little water loss and indigestion noise from the rad.

I must say, the one that came out was NOTHING like the one that replaced it. Will post a pic shortly... :shock:

Re: Rad fan sensor

Posted: 17 Jun 2015, 18:46
by CovKid
Make of this what you will. All the ones I've seen (new ones) are completely flat on this face. I did boil my engine (or close to) following a water pump failure a while back so perhaps the elevated temperatures killed it. I wonder if the flat face is a cap which has dropped inside the radiator? This is now my third in 10 years.

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