Fan switch


Information and questions on GL1200 Goldwings (1984-1987)
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SilverDave
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Fan switch

Postby SilverDave » Mon Feb 06, 2012 2:32 pm



On the pics I have of the 1200 engine ...it looks as if you can ( almost ) test the fan switch without removing the entire rad ...
[ the fan is not going on, so I assume its either the fan fuse, the motor, or, most likely, the switch .}

If it is indeed the switch , can one also replace it by just loosening the rad bolts , and pulling it slightly and gently forward ?

[and of course, replace it quickly, so as not to lose too much antifreeze ]

Secondly, Mother honda wants $110.00 for this device in Vancouver . Ouch !!
Is there a good aftermarket place where I could do better , including shipping, and duty ??
( and I won't deal with S---- C---- ! )

or a quality place that might carry "lightly" used ones ?

SilverDave



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Mooseman
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Re: Fan switch

Postby Mooseman » Mon Feb 06, 2012 5:45 pm

Some on e-bay in the $60.00 dollar range...
Enjoy the ride. They are all good, just some better than others.
Mooseman

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virgilmobile
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Re: Fan switch

Postby virgilmobile » Tue Feb 07, 2012 4:26 pm

The fan switch is just a thermally operated switch.Even cars use these.I haven't done any research on this but as long as the switch operates in the same temperature range and current capability,eg on at 195* off at 185* then it really dosen't matter if it came off a goldwing or a honda prelude.The electrical connections may vary ,as in the wing has 2 terminals with no connection to the case and some thermal switches use only one terminal.Easy enough,just don't use the ground wire from the bike.
Here's a link to another site that worked on this problem.http://www.goldwingfacts.com/forums/vie ... 34#p655134
Just remember that some auto switches are light duty and require adding a relay to handle the current needed by the fan.
If this is a option,we can help with the wiring needed.

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RoadRogue
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Re: Fan switch

Postby RoadRogue » Wed Feb 08, 2012 3:06 am

Thats the same switch I was telling you about the other day.
Ride safe, Todd
Over night campers welcome

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marlin_1
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Re: Fan switch

Postby marlin_1 » Sat Feb 11, 2012 9:33 pm

i am trying a switch #sw648 duralast it works in the 216 += 8 farenheight witch would be 195c range have exact tenps other computer will post later the threads are m18-1.5 i tried a switch with m16-1.5 it was too small the sw648 has blade connections and goldwing has bullet type so i am addapting over i ordered it from auto zone it is also off of a 94 geo metro 1.0l i am doing this on a 1987 interstate the switch cost 29.00 the advance auto same price 31.00 these days

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marlin_1
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Re: Fan switch

Postby marlin_1 » Sun Feb 12, 2012 3:05 pm

honda specs below 98 to 102c 208f to 216f no continuity (open) above 98 to102c 208 to 216f continuity (closed) duealast switch sw648 makes at 216f + - 8 breaks at 206f + - 8 the web site for the switches was wellsve.com

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SilverDave
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Re: Fan switch

Postby SilverDave » Sun Feb 12, 2012 8:27 pm

Well, I pulled to old switch, and tested it with a gentle flame, and an ohmmeter... it still cycles off and on, so that was not the cause of the overheating ...
Hmmmm
fan works, switch works, fuse good , ... so why would it overheat ?
the switch wire was still connected, but with a cracked ( as in old and brittle ) covering in one spot..
Rad seemed a little low on antifreeze, when I emptied it... but not all that low..
so why would it overheat ?
Its a mystery .

SilverDave

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Mooseman
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Re: Fan switch

Postby Mooseman » Sun Feb 12, 2012 11:13 pm

Reading your prior post on it went CLUNK......
Plus overheated.
What was the coolant level in the overfill bottle before you drained the radiator?
Maybe a bad head gasket?
Did it turn over after removing the spark plugs? Any fludis come out of the spark plug hole?
Just a thought.
Enjoy the ride. They are all good, just some better than others.
Mooseman

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marlin_1
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Re: Fan switch

Postby marlin_1 » Mon Feb 13, 2012 12:11 am

i would boil the water would be closer to 208 or 216 a flame would be closer to 400 i am only guessing

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seabee_
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Re: Fan switch

Postby seabee_ » Mon Feb 13, 2012 1:20 am

Could your thermostat be bad? If it's not opening, there's no coolant flow. Here are some thermostats that have been known to fit the 1200.
Thermostat (180 degree)

NAPA – 535080
Stant – 45868
Autozone – 15868
Paul
CE1 Navy Seabees/RET
1981 to 2002
ASE Mechanic

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marlin_1
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Re: Fan switch

Postby marlin_1 » Mon Feb 20, 2012 8:09 pm

just to let you know i broke the switch sw648 the socket sliped and broke the connectors off i got fedup and ordered the 37760-mb9-000 from powersportsplus.com for 67.50 9.39 shipping should be here tomorrow was pretty happy with the price

tmcconnery
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Re: Fan switch

Postby tmcconnery » Thu May 17, 2012 8:23 pm

I am having the exact same issue with mine. My temp gauge rises on the dilsplay all the way to the top If I am in traffic. I don't hear the fan come on or see it from the side. My fan works when I power direct, I cannot locate where the fuse is for this switch anywhere. My thermostat was in the closed position when I opened it up, I my rad fluid looked fine...what is the fix?

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Mooseman
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1986 GL1200A (SOLD) 81K
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1986 BMW K75c 25K

Re: Fan switch

Postby Mooseman » Thu May 17, 2012 11:07 pm

Check the fuses above the air cleaner. The fan gets power from there. If you have power to the fan then check the thermo switch. When the thermo switch closes it opens the path to ground. Get a wireing diagram and just follow the flow.
Enjoy the ride. They are all good, just some better than others.
Mooseman

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lukeinmexico
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Re: Fan switch

Postby lukeinmexico » Sun Apr 05, 2015 10:46 am

I'm having a similar problem with my 86 Interstate. The fan is not kicking on; I checked the fuse which seems to be fine. I want to check the fan and switch. The original post asked if you could do this without removing the radiator. Can you check the fan and fan switch without removing the radiator?
Thanks!

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SilverDave
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Re: Fan switch

Postby SilverDave » Mon Apr 06, 2015 3:12 pm

Well you need very tiny hands to do it that way...

LOL...

If you un-bolt the fan, you can slide it forward about 3/4 inch ... but I found that was not quite enough to test the fan with a 12 volt probe ...
heavy sigh...

So I removed ( and cleaned, and replaced ) all the rad and rad hoses.

In my case , it was the fan switch , which I replaced ...
and I also added a toggle switch and LED on the left handlebar to manually turn the fan on , if I felt it was overheating ..


SilverDave

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lukeinmexico
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Re: Fan switch

Postby lukeinmexico » Mon Apr 06, 2015 3:39 pm

Thanks SilverDave!
Can you give me more info on how you put in the manual switch?
I realized when I tried to test the thermo and fan that the radiator had to come out to do it properly.
I tried to install a manual switch but failed miserably, so I'm planning on pulling the radiator to get at the fan and thermo switch.
Did you get your new hoses from the dealership or someplace else?
Thanks again!
-Bobby

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marlin_1
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Re: Fan switch

Postby marlin_1 » Mon Apr 06, 2015 7:58 pm

your fan switch is only an off and on switch just install a off on switch between the two wires then you determine when the fan comes on but this is one area i must agree with other posts to get the right fan switch as i drove myself nuts trying everything under tho sun to beat the price but forgeting to turn it on is easy and could be costly i finely paid the price and am so glad that that problem is over and i was lucky enough not to do any damage the price of that switch was not worth what i was trying to do

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littlebeaver
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Re: Fan switch

Postby littlebeaver » Mon Apr 06, 2015 8:31 pm

You really want a automatic fan switch the way it was meant to be and this way you don't forget to turn it off.... I have an 1100 but they are the same, I installed years ago a fan switch for a 92-94 Geo metro I made sure to get the one for the FI engine.. I went to a junk yard and got a plug in for it, got rid of the Honda one and never had a problem since..I like taking photos of stuff...Show and tell.. Note: from memory the bore hole is 18mm ...
I used the rubber boot to cover it still, works like a charm..I got it from O <br />Orileys years ago
I used the rubber boot to cover it still, works like a charm..I got it from O
Orileys years ago
Oh I got rid of that home made plug and went direct to the wires ...but having the plug for the switch is really a good idea.. I'll see if they still have it...
alternator plugs and fan switch plugs
alternator plugs and fan switch plugs
I got the one for the XFi engine...http://www.ebay.com/itm/Engine-Coolant- ... d1&vxp=mtr

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Iaustin
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Re: Fan switch

Postby Iaustin » Tue Apr 07, 2015 7:55 am

I was having same issue,wires were getting cracked and bad connection at switch. I took off lower right side fairing and I could reach connector,pulled out put new ends and wire works good now.

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lukeinmexico
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Re: Fan switch

Postby lukeinmexico » Sat Apr 18, 2015 1:07 pm

How are you guys actually getting the switch out? I can't get my 27 mm deep well socket onto the switch! Do I have to pull off the thermostat housing to get the switch out?
Any help would be greatly appreciated!
Thanks!

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littlebeaver
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Re: Fan switch

Postby littlebeaver » Sat Apr 18, 2015 1:19 pm

Socket and long extension is all I used...

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lukeinmexico
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Re: Fan switch

Postby lukeinmexico » Sat Apr 18, 2015 1:35 pm

Thanks Littlebeaver.
Did you use a normal (not deep) 27 mm socket?
Here's a picture of what I'm seeing.
The cable coming down in front of the wires, is that the tachometer cable?
Does that cable come off/go back on easily, or does it need to stay in place?
I only ask because that cable is keeping me from being able to put my deep well socket on the thermo switch.
Thanks for the help!

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littlebeaver
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Re: Fan switch

Postby littlebeaver » Sat Apr 18, 2015 2:39 pm

I have an 1100 I don't have that mess, sorry ... I'd get a boxed in wrench just to loosen it and spin it off with your fingers, I used a 3/8"-1/2" wooden dowel trimmed down to fit between the two post tightly and I screwed it in from a far to install it... a neat trick of mine...That's for the OEM switch of course...Can that cable be removed?

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lukeinmexico
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Re: Fan switch

Postby lukeinmexico » Sat Apr 18, 2015 3:50 pm

I don't know if the cable can be removed, I was hoping someone else knows...does anyone else know?
Thanks for the reply!
-Bobby

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lukeinmexico
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Re: Fan switch

Postby lukeinmexico » Sat Apr 18, 2015 5:28 pm

Quick update: I could not get the switch out with a socket. The deep socket wouldn't fit because of the cable and the short socket just kept sliding off the switch. I bit the bullet and went to sears and got a 27mm combo wrench. I was able to get the switch out (and the new one in) with the combo wrench and my hand.
Just got the radiator back in with new hoses and I'm going back outside to flush the cooling system before putting in new coolant. Thanks for the responses, I appreciate your time!
-Bobby




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