Overheating


Information and questions on GL1100 Goldwings (1980-1983)
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Mthomas
Posts: 3
Joined: Wed Jun 19, 2019 8:19 pm
Location: Laurel, MD USA
Motorcycle: 1981 GL1100 Interstate

Overheating

Post by Mthomas »



Hello everyone. My name is Mike T. and I have now owned my favorite motorcycle of all time since April 2016.... The 1981 GL1100 Interstate. After 15,000 miles worth of tuneup’s, oil changes,maintenance and great riding times, I am now overheating.
I replaced the thermostat along with fresh antifreeze and it’s still overheating, bubbling in the overflow tank. I am not seeing the symptoms of a blown head gasket with the white smoke and I am also not seeing any water coming from the Weep hole at the water pump. Which way do I turn? Any input would be very much appreciated .... thanks


Last edited by Mthomas on Wed Jun 26, 2019 5:29 pm, edited 1 time in total.
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Aussie81Interstate
Posts: 1178
Joined: Thu Nov 27, 2014 2:34 am
Location: Penrith Australia
Motorcycle: 2001 GL1500F6C Valkyrie
1982 CX500 Turbo (Historic registration - finally)
1981 GL1100 Interstate (sold)
1988 GL1500 (sold)

Re: Overheating

Post by Aussie81Interstate »

I would drain the radiator and flush it out - it could be blocked, but if it is bubbling in the overflow - have you replaced your radiator cap? Can you be sure your radiator is not blocked internally, remove it and give the whole system a good clean out.
Mthomas
Posts: 3
Joined: Wed Jun 19, 2019 8:19 pm
Location: Laurel, MD USA
Motorcycle: 1981 GL1100 Interstate

Re: Overheating

Post by Mthomas »

What about the temperature sensor for the fan ?. It has not worked since my issues with this overheating... temperature gage usually shows straight up the middle when the fan comes on in traffic .... it hasn’t come on since my overheating issue ... I let the Garden hose run through the radiator for about 10 minutes, I will check circulation through the motor.., Thank you for any continued support. I really appreciate it
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winguyjo
Posts: 472
Joined: Sat Aug 11, 2018 9:26 pm
Location: b.c. Canada
Motorcycle: wing1 : 1982 gl1100 interstate; resurrection complete. SOLD
wing2 : 1980 gl1100 interstate; resurrection complete. SOLD.
wing3 : 81gl1100i frame/82gl1100a engine/81cb900 bits. resurrection complete. naked. SOLD.
wing4 : 1977 gl1000 black w/ blue pinstripes; resurrection complete. SOLD
wing5 : 1977 gl1000 black w/gold pinstripes; nearly roadworthy when purchased, NOW RIDING.
wing6 : 1975 gl1000 blue; SOLD

Re: Overheating

Post by winguyjo »

for that, you could apply power and ground directly to the fan at it's connector. if the fan runs, then you can start moving upstream in the circuit.
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Maz
Posts: 803
Joined: Tue May 19, 2015 4:43 am
Location: Kent, UK
Motorcycle: 1975 GL1000K1
1976 CB500T
1979 CB750L
1990 Yamaha FJ1200
1993 Suzuki GS500E

Re: Overheating

Post by Maz »

Mthomas wrote: Wed Jun 26, 2019 5:36 pm What about the temperature sensor for the fan ?. It has not worked since my issues with this overheating... temperature gage usually shows straight up the middle when the fan comes on in traffic .... it hasn’t come on since my overheating issue ... I let the Garden hose run through the radiator for about 10 minutes, I will check circulation through the motor.., Thank you for any continued support. I really appreciate it
What came first - overheating or fan not working?
Maz
Ironically, Common Sense is the LEAST common of all senses!
Mthomas
Posts: 3
Joined: Wed Jun 19, 2019 8:19 pm
Location: Laurel, MD USA
Motorcycle: 1981 GL1100 Interstate

Re: Overheating

Post by Mthomas »

Yeah it was overheating first and then the fan only came on intermittently when called for after that. Now it doesn’t work at all. I will be checking


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