Electrc fan switch


Information and questions on GL1100 Goldwings (1980-1983)
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Smokey66
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Joined: Sun Aug 16, 2009 1:11 pm
Location: Bavaria Germany
Motorcycle: 1982 GL 1100 DX

Electrc fan switch

Postby Smokey66 » Mon Apr 26, 2010 2:25 pm



I remember reading somewhere,maybe here ,about using the fan switch from a japanise or koren car instead of the very expensive Honda part.Anybody remember/know anything about this?I realize that anything with the same thread size/pitch and same temp.point for contact closing would work,just though someone might have a part number for me before i go diging through parts books/stores.



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WingAdmin
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Re: Electrc fan switch

Postby WingAdmin » Wed Apr 28, 2010 10:32 am

I've read about people doing this as well, but I haven't read of anyone finding one that both fits, and operates correctly at the correct temperatures. If you find one, let us know!

Smokey66
Posts: 10
Joined: Sun Aug 16, 2009 1:11 pm
Location: Bavaria Germany
Motorcycle: 1982 GL 1100 DX

Re: Electrc fan switch

Postby Smokey66 » Wed Apr 28, 2010 11:04 am

As soon as I find out something,I`ll post it.

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littlebeaver
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Re: Electrc fan switch

Postby littlebeaver » Sat May 08, 2010 1:11 am

Hi, I have learned how to fix a bad fan[oem] switch, and make it work like new, I bought one on ebay and it didn't work, I tested it and still didn't work, sent it back and he sent another one and it didn't work, so I decided to find out what goes wrong with these switches, I took it apart, I broke out the back of one just to see what does what, it's not the back, that's not the problem, it's inside the front, that little probe thing on the end that closes and opens when the temperature reaches the right temp. to close, that's your problem, I took a small pair of vise grips and loosened the little shaft just under the end probe, you should put the switch in a vise to do this, open it up and see if there are white deposits in the little nail shaft area inside, mine had lots of white hard deposits in there, clean it up real good and you will see that the little nail has a smaller sleeve on one end, when it closes that sleeve enters another section causing the switch to activate the fan, not quite done yet, it could also be the end probe sticking, when you take it apart, soak that end probe in carb cleaner, [half hour] theres a sleeve in it that allows it to close and open too, the carb cleaner should clean it up so it moves like new again, do this and put all back together and then test it, it should work... If it doesn't throw it away, Advance Auto has a switch for a 94 geo metro, go to Steve Sanders site and look up Thermal fan switch and you will get all the information on that...Cool.. I hope this helps you out... Little Beaver

Smokey66
Posts: 10
Joined: Sun Aug 16, 2009 1:11 pm
Location: Bavaria Germany
Motorcycle: 1982 GL 1100 DX

Re: Electrc fan switch

Postby Smokey66 » Sat May 08, 2010 10:10 am

Thanks Littlebeaver!Lots of good info there!I never thought about opening the thing up and looking inside.

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littlebeaver
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Re: Electrc fan switch

Postby littlebeaver » Sat May 08, 2010 10:05 pm

Smokey, I test my switches in boiling antifreeze on the stove, get it boiling, wire the switch with a wire so you can drop it into the antifreeze, wait a few minutes 4 or five and take it out and place your ohm meter plugs, one on each post and it should move the needle showing active, this means your switch is working now, if it doesn't move the needle I'd be very surprised...Lots of guys use oil to heat and test because its a higher temp. but I think like this, if it doesn't activate with antifreeze then it may not work with it on the bike, use the material it lays in, antifreeze...Not to knock on the manual or anything heck oil is good too...Have you ever heard of a fan running constantly and won't cut off, it's those deposits or the end probe thingymajiggy stuck in a closed position....later Little Beaver

Smokey66
Posts: 10
Joined: Sun Aug 16, 2009 1:11 pm
Location: Bavaria Germany
Motorcycle: 1982 GL 1100 DX

Re: Electrc fan switch

Postby Smokey66 » Mon May 10, 2010 12:14 pm

I test mine in boiling water,the same way .I was just looking for cheap replacement cause we(my buddies Wing)has a bad one.Do you have to "Re-seal"that thing after it being apart?As that probe hangs in the anti-freeze which could seep in and cause it to corrode again.Or not?Or worse yet the probe falls off IN the engine and wipes out the water pump.I`ll assume this has never happend to you?Any thoughts on this?

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littlebeaver
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Re: Electrc fan switch

Postby littlebeaver » Mon May 10, 2010 12:33 pm

No, I didn't use anything but that is probably a smart idea, maybe locktight on the threads or liquid gasket sealer or something, it's not likely to unscrew though, but anything is possible, it took many years of use to get stuff in there and probably take many more in the future, it might just be the end probe, you could just soak the end without opening it up and then test it, might work just doing that, maybe use a small wire brush under that end probe too... did it work for you guys? Let me know, did you find all the numbers for the after market switches? Littlebeaver




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