Removing thermoswitch and thermostat


Information and questions on GL1100 Goldwings (1980-1983)
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vaughn
Posts: 101
Joined: Sat Jun 16, 2012 8:28 pm
Location: Parker, Pa
Motorcycle: 1983 Gl 1100 Aspencade

Removing thermoswitch and thermostat

Post by vaughn »



How do you remove the thermoswitch from the housing and can I run a lower temperature thermostat than the 180.
My 83 Aspencade tends to run on the hot side. I have the radiator, thermostat and water pump flange off of bike. The fan was not coming on when it is supposed to. It's only 35 years old . Probably original switch. Have owned it for 7 years and it had 18000 miles when I bought it. Now has almost 50000


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AZgl1800
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'02 GL1800 lives in Dawsonville, GA now.
My son is going to enjoy it for many years to come.

Re: Removing thermoswitch and thermostat

Post by AZgl1800 »

do not change the thermostat to a different setting.
that will not be healthy for the engine.

if the fan is not coming on, and you think the engine is hot, check out the power to the fan, and check to see that the thermo sensor is working.

short the two wires at the temp sensor and the fan should run.
~John

'02 GL1800
2009 Piaggio MP3 250cc
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jeffcosmo
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Location: Burlington, WI (Honey Lake)
Motorcycle: 1983 GL1100 Aspencade
1983 GL1100 Aspencade
1983 GL1100 Aspencade (parts bike)

Re: Removing thermoswitch and thermostat

Post by jeffcosmo »

When you say the bike runs hot, how are you measuring the heat?? Electric temperature gauges (as stock) cannot be relied upon for such information. Laser temp probes are better, while mechanical gauges are perhaps best.

Too, what is "hot" to you?? Engines should run between 190º and 210º in general. Many people think that lower is better, yet that is simply not true. If the coolant is puddling underfoot after shutdown, the engine may be running hotter than it should. The radiator may also be partially plugged. If there is no coolant on the ground, you have no real worries.

Cosmo
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vaughn
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Joined: Sat Jun 16, 2012 8:28 pm
Location: Parker, Pa
Motorcycle: 1983 Gl 1100 Aspencade

Re: Removing thermoswitch and thermostat

Post by vaughn »

As I have the bike apart I will be putting in a new thermostat. The stock rating.
Can I get O rings and thermoswitch at Napa or should I go to Honda dealer?
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redbug
Posts: 545
Joined: Fri Sep 30, 2011 8:22 am
Location: Broken Arrow,Ok
Motorcycle: 1983 Gl1100I
1986 Harley FLHT

Re: Removing thermoswitch and thermostat

Post by redbug »

Oem on the thermostat for sure, now as the rest, yes I would go oem. Fits the first time every time.
" Riding on Tulsa Time "
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vaughn
Posts: 101
Joined: Sat Jun 16, 2012 8:28 pm
Location: Parker, Pa
Motorcycle: 1983 Gl 1100 Aspencade

Re: Removing thermoswitch and thermostat

Post by vaughn »

I have the bike back together but the fan is not coming on. There is a white dot on the thermoswitch and it is facing back toward the engine. I put the plug on and the black wire is on the top terminal. There is no color coding on the terminals. Do I need to reverse the plug?
Thanks
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Wilcoy02
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Location: Marengo, Ohio
Motorcycle: 1983 GL1100 I purchased 3/16

1983 GL1100I frame with an 80 engine. poor boy installed with C-5 ignition--DIED in Grande Prairie Alberta Canada 8/15


98 valkyrie sold 8/16

Re: Removing thermoswitch and thermostat

Post by Wilcoy02 »

Did the fan come on when you shorted the wires?`
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vaughn
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Joined: Sat Jun 16, 2012 8:28 pm
Location: Parker, Pa
Motorcycle: 1983 Gl 1100 Aspencade

Re: Removing thermoswitch and thermostat

Post by vaughn »

Yes. And it is a new switch from Honda as well as the thermostat.
I am rotating the plug around to see if that works. Honda didn't give enough room or wire for my big American hands. Don't want to loosen radiator again just for that. They need to mark those things. My GM vehicles only plug in one way, no way to mess It up
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vaughn
Posts: 101
Joined: Sat Jun 16, 2012 8:28 pm
Location: Parker, Pa
Motorcycle: 1983 Gl 1100 Aspencade

Re: Removing thermoswitch and thermostat

Post by vaughn »

Got it. It is now working. Now to waxing, new brake fluid and new front tire and I will be ready for the road.


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