Thermostat?


Information and questions on GL1000 Goldwings (1975-1979)
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portugeezer
Posts: 424
Joined: Sun Feb 13, 2011 3:44 pm
Location: Mchenry, Illinois
Motorcycle: 1976 gl1000
1982 Gl500
1984 Honda Magna V30

Thermostat?

Postby portugeezer » Mon Sep 02, 2013 7:53 pm



I'm trying to decide if I have a problem or not. When the outside temp drops into the 60's my temp gauge will drop to zero going say west then if I stop for a light it rises to normal then I take off and by the time I drive a mile I'm at zero again. Then oddly I will start heading home going East and the temp will go to the middle and maintain. I remember having thermostats get stuck open on cars and they would behave this way but I know often with bikes they overheat because the coolant runs through too fast for the radiator to do it's job. What do you guys think? I put in an OEM thermostat three years ago. Change it again or is this normal?



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Fred Camper
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Location: Metro Detroit, MI
Motorcycle: 1977 GL1000, 1976 LTD GL1000

Re: Thermostat?

Postby Fred Camper » Mon Sep 02, 2013 9:47 pm

Since you just changed it, either it was bad or you have a bad wire on your temp gauge circuit. Dropping to the bottom makes me think electrical and not mechanical. The coolant has enough thermal mass not to change that fast. So look for something electrical before changing the stat again.

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portugeezer
Posts: 424
Joined: Sun Feb 13, 2011 3:44 pm
Location: Mchenry, Illinois
Motorcycle: 1976 gl1000
1982 Gl500
1984 Honda Magna V30

Re: Thermostat?

Postby portugeezer » Mon Sep 02, 2013 9:50 pm

I just rode home the temp is 61. My gauge barely moved when I was at 60mph. Slowed to 45MPH and it was still barely up. Got home opened the gates and garage drove it into the garage and it was normal. Let it run for a few and the fan kicked on.

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dingdong
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Location: Oklahoma City
Motorcycle: 1976 gl1000
1993 gl1500
2004 NRX1800 Rune

Re: Thermostat?

Postby dingdong » Tue Sep 03, 2013 8:49 am

When the temps are 60 or below my 76 acts almost the same way. As far as direction of travel what you are experiencing is more than likely wind related. Traveling West into a head wind equals more air flow and lower temps. Reversing direction and heading East with the wind equals less air flow therefore higher temps on the gauge. I see this all the time and it is normal.


Tom

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