Coolant leak 1984 1200 Aspencade


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lyle147
Posts: 5
Joined: Sun Apr 07, 2013 9:11 pm
Location: illinois
Motorcycle: 1984 1200 Aspencade

Coolant leak 1984 1200 Aspencade

Postby lyle147 » Sun Apr 07, 2013 9:51 pm



Hello, shortly after I started riding today I noticed steam coming from the right side, After opening up the top compartment where the fuel fill cap is I noticed coolant all over. It looked like it might be coming from the cap for the radiator overflow resevoir. However what bothered me was that my bike started to overheat also. Just wandering if I have something else going on that would cause overheating. I havent yet checked the color of the s.plugs or the rad. cap. I bought the bike several months ago and the previous owner had head gaskets replaced, is it possible that they need to be retorqued? Has anyone else had a similar exprience and where do you suggest I start.
Thanks



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virgilmobile
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Re: Coolant leak 1984 1200 Aspencade

Postby virgilmobile » Mon Apr 08, 2013 4:32 pm

Overheating then steam is never a good thing.....
Possibilities.....
Head gasket leaking.
Water pump failed.
Low fluid level.
Plugged coolant system(radiator)
Stuck thermostat.
Cooling fan inoperative.
You should start a methodical test of each part of the system.
But first....Refill the system full,crank the engine....top off the radiator and watch the fluid....
If it flows,the pump is at least moving the fluid...If there is no flow,the pump or thermostat is first suspect.
If it starts to bubble as it gets warmed up...The head gaskets are leaking....
The fan should kick on at around 195*....It can be manually switched if necessary.

Let us know what you find...

lyle147
Posts: 5
Joined: Sun Apr 07, 2013 9:11 pm
Location: illinois
Motorcycle: 1984 1200 Aspencade

Re: Coolant leak 1984 1200 Aspencade

Postby lyle147 » Tue Apr 09, 2013 9:59 am

Thanks for the info...I have started a test, checking the plugs and oil for signs of coolant, all good there.
The coolant is moving when I run the engine, put spits out when at the top of the overflow when I first start the bike up. The temp LCD readout stay at 3-4 for about 10 minutes then start to climb till I have to shut down the engine, at that time I get coolant spitting out at the overflow again. My next steps will be that I am going to replace the radiator cap and flush the radiator also. I will let you know how I make out...thanks. If you have other ideas I will be willing to try them.

BigBro
Posts: 55
Joined: Sat May 19, 2012 9:33 am
Location: Port Orchard, Wa and John Day, Oregon
Motorcycle: 1984 GL1200i Interstate

Re: Coolant leak 1984 1200 Aspencade

Postby BigBro » Tue Apr 09, 2013 10:33 am

The process you are going through is a proper course.

To me that sounds like a stuck thermostat.

With it just sitting idling, and the ambient temp where we are now, it should warm up and maintain but not over heat.
The Thermostat sits at the Top of the motor in terms of coolant path and would open once warm enough. If it never opens then the coolant could force back through the radiator and boil over.

Thermostat is fairly easy to get to and replace. and given the age of this bike I would consider replacement rather than testing unless you know the history there.
I guess if I was going that far, I would also plan to check the waterpump, flush coolant path, replace antifreeze.
You have it down to that point anyway and it could prevent problems down the road.

lyle147
Posts: 5
Joined: Sun Apr 07, 2013 9:11 pm
Location: illinois
Motorcycle: 1984 1200 Aspencade

Re: Coolant leak 1984 1200 Aspencade

Postby lyle147 » Tue Apr 09, 2013 8:35 pm

Thanks for the advice, i have flushed the radiator, and have removed and plan on replacing the radiator cap. as long as I am this far I will also change the thermostat, becuase you are right and I dont know the bikes history. I did notice one thing on the radiator cap that i am not familiar with. The "plunger" that sits at the end of the spring is loose and rattles quite freely, can you recall if that is normal. also does anyone know if I can get a replacement cap at O'reillys or other auto parts store?
Thanks again and what a great site this is, full of info.

BigBro
Posts: 55
Joined: Sat May 19, 2012 9:33 am
Location: Port Orchard, Wa and John Day, Oregon
Motorcycle: 1984 GL1200i Interstate

Re: Coolant leak 1984 1200 Aspencade

Postby BigBro » Tue Apr 09, 2013 8:57 pm

The plunger piece is a relief as I remember. It should move a bit.
They are pressure set at 13lbs of pressure.
There are 2 caps for sure that fit it. Stant 10229 and 10227. Mine is the early one made 10/83 and it takes a 10229 which is larger then that later ones.

lyle147
Posts: 5
Joined: Sun Apr 07, 2013 9:11 pm
Location: illinois
Motorcycle: 1984 1200 Aspencade

Re: Coolant leak 1984 1200 Aspencade

Postby lyle147 » Tue Apr 09, 2013 9:45 pm

Thanks BigBro.I will just carry it in to parts store and match it with the correct one of the 2 you mentioned.

BigBro
Posts: 55
Joined: Sat May 19, 2012 9:33 am
Location: Port Orchard, Wa and John Day, Oregon
Motorcycle: 1984 GL1200i Interstate

Re: Coolant leak 1984 1200 Aspencade

Postby BigBro » Tue Apr 09, 2013 10:24 pm

Your Welcome Lyle147

I found that and many other auto part cross references on one of these Goldwing sites.




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