Manky Monkey Motors

Technical Section => General Tech => Topic started by: spanners on November 16, 2009, 01:21:51 AM



Title: fan switch
Post by: spanners on November 16, 2009, 01:21:51 AM
fan switch  i must have come up with a dozen or more idea,s for a tempreture controlled fan switch for my trike build

  but

 i,m not happy with any of them  either because of cost  or practicallity or uglyness

so

any monkey,s got any ideas  all input gratefully received
                     
                                                      many thanks
                                                                mike


Title: Re: fan switch
Post by: Manky Monkey on November 16, 2009, 04:56:16 AM
Hiya Mike,
on my last trike, which had a rear mounted Fiesta radiator, I used one of these inline thermostatic switches from Merlin Motorsport

http://www.merlinmotorsport.co.uk/COOLING-Electronic-Fan-Controller/c20_515/index.html?osCsid=7ba5456183d045b9381ec6e3659e9970

Not cheap I guess at about 50 quid, but worked well & was adjustable. Most modern cars must have something similar fitted though. Flap's orange trike & Muffin's black one just have on/off switches, which are left on nearly all the time.


Title: Re: fan switch
Post by: ROD on November 16, 2009, 07:58:07 AM
Think theyre cheaper at Car Builder Solutions


Title: Re: fan switch
Post by: tbone on November 17, 2009, 10:32:30 PM
Why not fit a switch in place of the temp transmitter?
or fitting a hose joint, like Andy did, drill and tap a hole and screw a standard fan switch in?


Title: Re: fan switch
Post by: spanners on November 17, 2009, 11:15:09 PM
Why not fit a switch in place of the temp transmitter?
[/






yeah  tbone i,v been thinking along those line,s  but was also thinking of fitting a capilary type temp gauge but now thinking about keepig things simpler  might make a new thermostat houseing top with a temp switch in it


Title: Re: fan switch
Post by: tbone on November 18, 2009, 12:03:53 AM
If having a gauge then why not have a simple on/off switch operated fan?


Title: Re: fan switch
Post by: ROD on November 18, 2009, 06:47:29 AM
IMHO I think a thermostat on the fan would be better,as although you will probably hear the fan running and therefore know its on or off,its easier to let the thermostat control it once you set the temp. Just another thing not to worry about when riding!Also one less guage to find a position for I s'pose!The Car Builder ones have a thin capillary which fits between the hose and the stub of tube on the rad,then you re tighten the hose clip. Ive used one before on my Locost.


Title: Re: fan switch
Post by: Manky Monkey on November 18, 2009, 10:44:30 PM
Merlin Motorsport sell hose T pieces with fittings for thermostatic switches.

http://www.merlinmotorsport.co.uk/COOLING/c20/index.html?osCsid=6b18389c377df9a69cfa90d1e6599ba3


Title: Re: fan switch
Post by: spanners on November 18, 2009, 10:54:17 PM
our richard my nephew is an electronics bod   says dont bother just put an ordinary switch on it  but i,m still studying all options ::) ::)

the anoying thing is he says its ,,dead easy,, for him to make a thermostatic switch to fit anywhere

 i dont think he can be arsed  and  after the amount i,v done for him    :o :o


Title: Re: fan switch
Post by: tbone on November 19, 2009, 09:44:14 AM
Thats a better pic than i managed!  ::)
I spend a great deal of time studying all the options too, that way i dont actualy have to do any work  ;D ;D


Title: Re: fan switch
Post by: madron on November 19, 2009, 10:56:56 AM
i just wire em direct into ignition


Title: Re: fan switch
Post by: Manky Monkey on November 19, 2009, 07:08:39 PM
I think Flap's & Muffin's had on/off switches so they could be flicked off while they started the engine then put back on again. More or less hard wired, just with the option to shut it off if needed.


Title: Re: fan switch
Post by: ROD on November 20, 2009, 07:10:51 AM
I had the thermostat I mentioned,plus a manual overide switch.


Title: Re: fan switch
Post by: voodoo on November 20, 2009, 07:18:23 AM
I normally just stick a fan on a switch...Voodoo...