Coolant leak


Information and questions on GL1500 Goldwings (1988-2000)
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Breyno
Posts: 9
Joined: Tue Oct 11, 2011 4:47 am
Location: Australia
Motorcycle: 1993 GL1500 Aspencade
2010 DL650 Vstrom
2015 KLX 250s

Coolant leak

Postby Breyno » Tue Jul 19, 2016 5:29 am



I have read quite a few posts about coolant leaks, but I haven't really found the answer I need. I have seen small droplets of green coolant on the bottom of the pump. It is not coming from up top and not from the drain plug.

It is minimal and not really effecting the levels too much. Any ideas where it may come from and if I keep a close eye on coolant levels will there be any long term damage by having the leak.

We have had unseasonably cold weather here for the past week (winter came on a Wednesday this year), we actually got down to single figures (just), but generally the cold is not an issue.



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flyinrob
Posts: 56
Joined: Tue Dec 31, 2013 10:48 am
Location: Sacramento, California
Motorcycle: 1996 Gl1500 Aspencade

Re: Coolant leak

Postby flyinrob » Tue Jul 19, 2016 7:51 am

Usually a few drops on the underside of the water pump indicated leakage from the weephole on the underside of the pump. A seal inside the pump is leaking and the coolant is draining to the outside of the pump. May not be the cause of your leak but it is a place to start looking.

Rob

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Breyno
Posts: 9
Joined: Tue Oct 11, 2011 4:47 am
Location: Australia
Motorcycle: 1993 GL1500 Aspencade
2010 DL650 Vstrom
2015 KLX 250s

Re: Coolant leak

Postby Breyno » Wed Jul 20, 2016 1:44 am

Thanks Rob. Looks like the weephole. Is this a big issue or manageable.

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flyinrob
Posts: 56
Joined: Tue Dec 31, 2013 10:48 am
Location: Sacramento, California
Motorcycle: 1996 Gl1500 Aspencade

Re: Coolant leak

Postby flyinrob » Wed Jul 20, 2016 7:22 am

If it is leaking from the weephole then the waterpump is on it's way out. I have not replaced the waterpump on mine yet but I have read that it is certainly doable to replace it.

If I recall correctly, drain oil and coolant, replace pump, refill oil and coolant. If you get to the stage of replacing it and run into questions I am sure they can be answered on this forum for you.

Rob

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DarthJ
Posts: 81
Joined: Sun Mar 15, 2015 8:47 pm
Location: El Paso, TX
Motorcycle: 1993 GL1500A Aspencade

Re: Coolant leak

Postby DarthJ » Tue Jul 26, 2016 8:16 pm

It is on it's way out if it's coming from the weephole. I did mine, it IS doable, but is a major pain in the ass. Getting the old one off was easy, getting the new one to seat properly was a bit of a hassle.
If my gal ain't happy, I ain't happy. Thank God she loves bikes.

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Aussie81Interstate
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Joined: Thu Nov 27, 2014 2:34 am
Location: Penrith Australia
Motorcycle: 1982 CX500 Turbo (restoration project)
1981 GL1100 Interstate (sold)
1988 GL1500

Re: Coolant leak

Postby Aussie81Interstate » Tue Jul 26, 2016 8:30 pm

Could also possibly be a loose coolant hose - as they tend to shrink a bit in the colder weather and can have slow minor leaks. Give the lower hoses a turn or two to tighten them up and see if the leak continues

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Breyno
Posts: 9
Joined: Tue Oct 11, 2011 4:47 am
Location: Australia
Motorcycle: 1993 GL1500 Aspencade
2010 DL650 Vstrom
2015 KLX 250s

Re: Coolant leak

Postby Breyno » Sat Jul 30, 2016 1:24 am

Thanks gents.

since I have only just purchased the bike and really don't know its mechanical history i think I might change out the water pump, oils, flush coolant, filters and all, just to be safe.

Anything else I should be thinking of..timing belts maybe.




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