Overheating


Information and questions on GL1200 Goldwings (1984-1987)
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wtaylor20
Posts: 10
Joined: Mon Jan 25, 2010 10:40 am
Location: New Bern, NC
Motorcycle: 1987 GL1200A Aspencade

Overheating

Postby wtaylor20 » Sun Jan 02, 2011 8:59 am



I have a 1987 Goldwing that while out riding yesterday even with the temps in the 50's and 60's overheated at interstate speeds. When I slowed down to say under 60 mph it would cool down. Can anyone advise what the problem might be. I checked the fluid level and it was good.



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WA9FWT
Posts: 828
Joined: Thu Oct 22, 2009 12:19 pm
Location: sheboygan WI U.S. A.
Motorcycle: 1982 GL1100A Aspencade Now a Trike
1975 Cb750K sold

Re: Overheating

Postby WA9FWT » Sun Jan 02, 2011 12:18 pm

Did you recently add or change the engine coolant ? May just have a air bubble in the system.Did you check to see if the fan is free to turn, and did the fan come on ?
WA9FWT Phil

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WingAdmin
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Posts: 17050
Joined: Fri Oct 03, 2008 4:16 pm
Location: Strongsville, OH
Motorcycle: 2000 GL1500 SE
1982 GL1100A Aspencade (sold)
1989 PC800 (wife's!)
1998 XV250 Virago (sold)
2007 Aspen Sentry Trailer

Re: Overheating

Postby WingAdmin » Sun Jan 02, 2011 1:19 pm

At highway speed, the fan shouldn't have anything to do with it - there's far more ram air going in the front than the fan could pull through...unless the fan happens to be wired backward, in which case when the bike got hot, it tried to turn on, pushing air forward, which is pushed backward by ram air, resulting in NO air.

The most likely suspect however, is an air bubble in the cooling system.

wtaylor20
Posts: 10
Joined: Mon Jan 25, 2010 10:40 am
Location: New Bern, NC
Motorcycle: 1987 GL1200A Aspencade

Re: Overheating

Postby wtaylor20 » Sun Jan 02, 2011 5:33 pm

I have not done anything to the system. I noticed about a year ago I could smell antifreeze after I shut it off but never saw a leak anywhere. I checked the fan and it is working fine. When I went slower it bike would cool down but as soon as I got my speed up to over 65 it would heat up again. When we stopped it would cool down as well with the bike running.

Thanks for the reply WA9FWT

User avatar
WA9FWT
Posts: 828
Joined: Thu Oct 22, 2009 12:19 pm
Location: sheboygan WI U.S. A.
Motorcycle: 1982 GL1100A Aspencade Now a Trike
1975 Cb750K sold

Re: Overheating

Postby WA9FWT » Sun Jan 02, 2011 6:09 pm

wtaylor20 wrote:I have not done anything to the system. I noticed about a year ago I could smell antifreeze after I shut it off but never saw a leak anywhere. I checked the fan and it is working fine. When I went slower it bike would cool down but as soon as I got my speed up to over 65 it would heat up again. When we stopped it would cool down as well with the bike running.

Thanks for the reply WA9FWT

At this point I would remove the radiator pressure cap, start the engine, and let it idle for some time. Watch for bubbles, Add fluid if needed to the radiator, not the reservoir.
Also it could be the radiator cap failing ? Pick up a used one or try a friends cap.

WA9FWT Phil

wtaylor20
Posts: 10
Joined: Mon Jan 25, 2010 10:40 am
Location: New Bern, NC
Motorcycle: 1987 GL1200A Aspencade

Re: Overheating

Postby wtaylor20 » Mon Jan 03, 2011 9:38 am

Thanks, I will give that a try.




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