Triumph Rat Motorcycle Forums banner

1 - 12 of 12 Posts

·
Registered
Joined
·
3,282 Posts
Discussion Starter #1
I managed to get my fan test circuit installed yesterday. It was a public holiday over here and great weather so I took the opportunity to put everything together.

It's a very simple design, I bought a ready made relay delay circuit off ebay which has a variable delay and can handle the current.

The idea being that when the ignition first comes on, the circuit turns the fan on for 3 seconds to let me know that it's still working, and also to give it a bit of exercise - ie stop it seizing up from lack of use during the colder months.

Here's how I wired it in -



I'm not proud to say that I wired the +ve feed to the circuit to the +ve feed for coil #2, I really should have ran a wire down to the fusebox as I really don't like interfering with the coils at all!



But this is really an initial test to see how it goes, so I will change it and wire it in properly once I'm happy that it works without any problems.

It has worked well so far, and I got stuck in traffic again today so at least I know that the fan operates as normal, although I did see the temp gauge get to 100°C for the first time ever, so that's concerning me a little.

I'll keep an eye on it and see how it goes, but I just bought the VW fan switch (with the lower activation temperature) as well and I'll put that in as soon as it arrives.
 

·
Premium Member
Joined
·
6,462 Posts
Are those scotch lock splices? Ugh :(
 

·
Registered
Joined
·
3,282 Posts
Discussion Starter #3
lol dunno what they're called, but yeah I agree they're not very friendly. The whole thing is really setup as a test right now, plus I forgot to take my roll of solder with me when I went to the garage so I had to bodge it a bit - not upto the the usual ArferBrick standard of work I know :rolleyes:.

If I decide to keep it then I'll need to put the circuitboard into a nice plastic container, and connect all the wires up properly.

Don't panic, don't panic!
 

·
Premium Member
Joined
·
6,462 Posts
Hehe, no worries Arfer, just wouldn't recommend those scotchlock things on a bike. Solder & heat shrink tube is best & neatest imo, tho' crimps with a proper tool are fine too.

Anyhow, that's quite a cool idea to test (& spin) the fan. You weren't tempted to try & fit a manual fan switch? (I know it's tricky to mount on an unfaired bike.)
 

·
Registered
Joined
·
3,282 Posts
Discussion Starter #5
Funny you should say that, I have been thinking of installing a manual switch too :D.

That would mean yet another relay and wires going upto the bars, and I'm really not keen on that. I guess I could put the switch somewhere under the tank where it's easily reached, but not too keen on that one either.

I think an indicator light would be a good thing, I might embark on making a new speedo holder plate with LED bezel lights on it, then I could simply add one for the fan so I know when it's running. It's a pain having to look down at the fan to make sure!
 

·
Premium Member
Joined
·
6,462 Posts
Or you could use the oil pressure indicator light. That light is hardly worth having imo. Just about any genuine reason for a pressure warning (as in 0 psi) & the engine is knackered anyway.
 

·
Premium Member
Joined
·
6,462 Posts
Tho' changing it to a fan light would cause havoc with anyone else riding the bike, if they weren't told :D
 

·
Premium Member
Joined
·
6,462 Posts
Sure, an improper use of the Scottish lochs. They are supposed to be for fishing & supplying distilleries only :)
 

·
Registered
Joined
·
3,282 Posts
Discussion Starter #10
Nay laddie, they be fer Monsters!! :geezer
 

·
Registered
Joined
·
792 Posts
oi stop tackin the piss out my great country and yes the scots lochs are fir fishing and making whiskey and tennents lager mike and keep yer eyes aff orr monster arfer its no fir sale lol
 

·
Registered
Joined
·
3,282 Posts
Discussion Starter #12
Hey, talking of monsters, did you see James May's Skegness Mon ster on ManLab? That was a great laugh :D.
 
1 - 12 of 12 Posts
Top