79 wing overheat new problem


Information and questions on GL1000 Goldwings (1975-1979)
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daves79wing
Posts: 1
Joined: Fri Aug 19, 2011 9:30 am
Location: Bellevue, PA
Motorcycle: 1979 GL1000

79 wing overheat new problem

Postby daves79wing » Fri Aug 19, 2011 11:13 am



we have a 79 wing that the clutch recently went out in and right about the same time it started to overheat when parked boiled over onto the ground. when riding in city traffic you can hear the fluid boiling and bubbling (ie stuck at light) moving the temperature will stay at halfway but when you stop it will immediately heat up and bubble also has excessive heat coming off engine. does have leak of antifreeze i think it is coming from the engine it is very small leak fan does come on just not cooling it enough to stop overheat HELP please



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Fred Camper
Posts: 1152
Joined: Sun Aug 16, 2009 9:15 pm
Location: Metro Detroit, MI
Motorcycle: 1977 GL1000, 1976 LTD GL1000

Re: 79 wing overheat new problem

Postby Fred Camper » Fri Aug 19, 2011 5:14 pm

Any kind of leak, no matter how small is bad. It means the system can no longer build pressure as the fluid expands with heat and build pressure. Building pressure raises the boiling point of the coolant. Without pressure, the fluid boils early and heat transfer is compromised. You must find the leak. There are tools that allow you to put a tire pump onto the radiator cap to help you find the leak. It may be head gasket related.

RexAubrey
Posts: 110
Joined: Fri Apr 22, 2011 11:05 am
Location: Aldan, PA
Motorcycle: 1983 GL1100I GoldWing Interstate (Black)
1982 GL1100A GoldWing Aspencade (Maroon)
1981 Yamaha XJ550H Maxim (Black)
1979 Yamaha XS650SF Special (Black)

Re: 79 wing overheat new problem

Postby RexAubrey » Sat Aug 20, 2011 8:18 pm

you may have a bad water pump. is the leak you see coming from the weep hole at the bottom of the engine on the front cover? there is a good DIY on this site if you need to change the water pump.
Rex
1983 GoldWing Interstate, 1982 GoldWing Aspencade, 1981 Yamaha 550 Maxim, 1979 Yamaha 650 Special


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