Thermostat not opening???


Information and questions on GL1000 Goldwings (1975-1979)
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dingdong
Posts: 3851
Joined: Thu Apr 08, 2010 8:35 am
Location: Oklahoma City
Motorcycle: 1976 gl1000
1993 gl1500A
2004 NRX1800 Rune SOLD

Thermostat not opening???

Post by dingdong » Wed Jul 31, 2019 11:37 am



My 76 seems to reach fan on temps quicker than usual. Fan comes on and drops temp but I noticed the upper section of the radiator is room temperature. According to my cheapy temp gun the temp is around 110 degrees. Is this a thermostat that is not opening?



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DenverWinger
Posts: 1341
Joined: Thu Jun 23, 2011 2:20 pm
Location: Denver, CO
Motorcycle: (s)
1980 GL1100 STD Vetter (2005-)
1993 GL1500 Aspencade (2017-)
1983 Trav-Lite Camper (2010-)
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1972 CL350 (1980-1988) sold
1978 Suzuki GS550 (1985-2005) sold
1977 GL1000 (2002-2006) sold

Re: Thermostat not opening???

Post by DenverWinger » Wed Jul 31, 2019 5:53 pm

Probably low coolant in the radiator.
♫ 99 Little Bugs in the Code, ♪
♪ 99 Bugs in the Code. ♫ :(
♫ Take one down, Patch it around, ♪
♫ 127 Little Bugs in the Code. ♫ ♪ :shock:

~Mark

User avatar
dingdong
Posts: 3851
Joined: Thu Apr 08, 2010 8:35 am
Location: Oklahoma City
Motorcycle: 1976 gl1000
1993 gl1500A
2004 NRX1800 Rune SOLD

Re: Thermostat not opening???

Post by dingdong » Thu Aug 01, 2019 7:34 am

I guess I am getting senile in my old age. Last service I flushed and replaced the coolant. I just filled the radiator and overflow tank then forgot to burp it. Low coolant was the problem.

User avatar
DenverWinger
Posts: 1341
Joined: Thu Jun 23, 2011 2:20 pm
Location: Denver, CO
Motorcycle: (s)
1980 GL1100 STD Vetter (2005-)
1993 GL1500 Aspencade (2017-)
1983 Trav-Lite Camper (2010-)
Past rides
1972 CL350 (1980-1988) sold
1978 Suzuki GS550 (1985-2005) sold
1977 GL1000 (2002-2006) sold

Re: Thermostat not opening???

Post by DenverWinger » Thu Aug 01, 2019 8:05 am

Just driving it around it would have eventually burped itself out and replenished from the overflow tank until the tank was depleted... :D


♫ 99 Little Bugs in the Code, ♪
♪ 99 Bugs in the Code. ♫ :(
♫ Take one down, Patch it around, ♪
♫ 127 Little Bugs in the Code. ♫ ♪ :shock:

~Mark

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