Replacing thermostat switch

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CBR Monkey
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Bike owned: CBR900RR, Honda CB400/4, NC29
Location: Sevenoaks
Replacing thermostat switch

Post by CBR Monkey »

I'm having a problem with my NC29 overheating and the fan is not coming on.

I have checked the fuse and that is okay, and having read the haynes manual I have found that by disconnecting the wiring connector from the fan switch and connecting it to an earth the fan comes on which must mean that the fan switch is knackered.

I have orderd a new fan switch but my question is....When I screw the new switch into the radiator do I need to use a sealant with it, and if so what do I use?

Sorry for the essay but any ideas about the sealant would be a help.

Cheers

Paul
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w00dzy
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Re: Replacing thermostat switch

Post by w00dzy »

I would also like to know as just bought a used one off evilbay..

I'm guessing maybe a little thread lock?

Will check the manual before I do it..
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CBR Monkey
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Re: Replacing thermostat switch

Post by CBR Monkey »

I was thinking of using thread lock but would it with stand the heat from the radiator? That was my only concern.
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w00dzy
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Re: Replacing thermostat switch

Post by w00dzy »

Got mine through today, will check the manual and do as it says and report back.. ;)
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CBR Monkey
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Re: Replacing thermostat switch

Post by CBR Monkey »

Cheers w00dzy if you could let me know that would be great!

Paul
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w00dzy
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Re: Replacing thermostat switch

Post by w00dzy »

Hello,

I didn't check the manual in the end.. but after taking the old one off couldn't see any form of sealant or thread lock so just put a copper washer on it and did it up pretty tight..

no leaks
bourney
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Re: Replacing thermostat switch

Post by bourney »

None needed.

If you really wanted to i guess you could put some P.T.F.E tape on the threads but there's no need.
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CBR Monkey
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Re: Replacing thermostat switch

Post by CBR Monkey »

Cheers guys, I have done what w00dzy reccomended and it seems to be working a treat!

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