Coolant leak right side


Information and questions on GL1500 Goldwings (1988-2000)
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fnickel
Posts: 66
Joined: Mon Oct 29, 2012 7:59 pm
Location: Campbellville, ON, Canada
Motorcycle: 1992 GL1500SE

Coolant leak right side

Postby fnickel » Sun May 04, 2014 6:26 am



I have a coolant leak, right side of engine. After running engine, it doesn't show up for a day or 2, but then increases while bike is parked (probably a couple of tablespoons after a few days). I first noticed that it was dripping from the bottom right side of timing belt cover, second bolt in from the RH side. I figured it was coming from higher up on the engine (maybe coolant hose where it connects to rad) but I don't detect any coolant coming from higher up. On closer look, I see some puddled coolant on engine block, just inboard of the rear spark plug on RH cylinder bank. Not on the cylinder head, but further inboard on engine block. I'm thinking it might be possible that this puddled coolant is running forward on engine and then dripping from the most convenient spot (timing belt cover). What is the most likely source of this coolant leak? I'm hearing that there are some coolant lines running to the carburetor, so is that a possibility? Or are there other connections above engine that could be leaking coolant? Any history that any of you can share on similar problems would help me narrow this down. Just discovered this while changing the sub and cruise air filters on the bike, so I have the bike partway stripped down to solve this. Not looking forward to getting into carb coolant connections, but if that's what it takes, here we go!



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rubbenj
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Location: Ocala Fl
Motorcycle: 1996 Goldwing se

Re: Coolant leak right side

Postby rubbenj » Sun May 04, 2014 8:37 am

I had the same problem on my 1996 1500SE. after tearing it down to where I could see in there, while the bike was running I reached in and started moving hoses around and found that when I pushed on the radiator hose the clamp was loose which let the hose slide up a little which caused the leak. I pushed the hose back down tightened the clamp up good and it has not leaked since. hope this helps

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Fatwing Chris
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Motorcycle: 2004 ABS Model Goldwing

Re: Coolant leak right side

Postby Fatwing Chris » Sun May 04, 2014 9:28 am

Apparently there were some earlier 15's that had tape left on the rad nipples where the hoses go on that caused some leaks after a while.Also a hose is known to crack at the overflow tank.
Don't pay too much attention to where the coolant is dripping off the motor.If it's one thing I've learned being an auto-tech for a hundred years is that leaks can travel all over the place and drip off in a totally different spot.Start at the top and work your way down.Pretty good bet on your bike it's either the rad hoses or a cracked hose at the coolant reservoir/tank.

PS When you say RH Side are you talking sitting on the bike or standing in front of it.Reason I ask is that most park their bikes on the sidestand and then the leaks show up on the LH Side.
If I'da known it would last this long,I'da taken better care of it.
Chris
Double Dark
Darkside # 1602

fnickel
Posts: 66
Joined: Mon Oct 29, 2012 7:59 pm
Location: Campbellville, ON, Canada
Motorcycle: 1992 GL1500SE

Re: Coolant leak right side

Postby fnickel » Sun May 04, 2014 12:18 pm

I hope it's as minor as a hose or clamp. By right side, I mean as sitting on the bike looking forward. The bike is on the center stand, so it's not leaning. Thanks for the feedback. More is welcome.

Melloreel
Posts: 50
Joined: Tue Nov 19, 2013 4:17 pm
Location: Coastal Ga.
Motorcycle: 1992 GL1500 aspencade
2009 Streetglide

Re: Coolant leak right side

Postby Melloreel » Wed May 07, 2014 9:19 pm

I just fixed this on my new old wing. Both sides have o-rings on the nipples that attach to hose going into block. In the block side are the almost flat orings. You will see a bolt that holds these nipples tight into the block. Make sure they are tight first, then if still leaking replace. Honda only part. It's a pain to get them out and back in :-(
JMHO.

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Tol99
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Location: Andover, MN
Motorcycle: 1994 GL1500 SE
1982 GL1100 STD

Re: Coolant leak right side

Postby Tol99 » Wed May 07, 2014 10:25 pm

I had a minor leak on my 94 and it was the small hose that connects the two radiators. Very hard to see unless you remove the cooling fans and then start the engine. Use a light and mirror to look up at the upper inside of both radiators. When I removed the hose it was extremely hard and brittle. Good luck.

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bohdan
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Motorcycle: 1977 GL1000
1977 GL1000
1977 GL1000
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Re: Coolant leak right side

Postby bohdan » Thu Feb 12, 2015 8:18 pm

Hey fnickel, did u ever find the source of the leak on your bike? I too have a leak noticed on the exact same spot. Bottom of right timing cover. I should take another look at the other spots. First worry it's leaking from head gasket. Hopefully it's not probable thx

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roadwanderer2
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Re: Coolant leak right side

Postby roadwanderer2 » Thu Feb 12, 2015 8:53 pm

here's a thought........is it possible the drip is coming from the water pump weep hole? not sure if its the same, but if the bike's water pump is anything like on a car, it has a weep hole that when its dripping coolant, its time to change it.

stuart.

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WingAdmin
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Motorcycle: 2000 GL1500 SE
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Re: Coolant leak right side

Postby WingAdmin » Thu Feb 12, 2015 10:24 pm

roadwanderer2 wrote:here's a thought........is it possible the drip is coming from the water pump weep hole? not sure if its the same, but if the bike's water pump is anything like on a car, it has a weep hole that when its dripping coolant, its time to change it.

stuart.


Correct, there is a small weep hole on the bottom of the pump housing. It's worth a look to see if the coolant is in fact coming from there.

Melloreel
Posts: 50
Joined: Tue Nov 19, 2013 4:17 pm
Location: Coastal Ga.
Motorcycle: 1992 GL1500 aspencade
2009 Streetglide

Re: Coolant leak right side

Postby Melloreel » Fri Feb 13, 2015 6:33 am

This is a old post, and I have since rebuilt the wing and sold it. Back to working on Harleys. Loved the wing but took all day just to get plastic covers off :o
Leak was coming from oring that seals the nipple pipe going from hose into block. It has a bolt holding th nipple that was very tedious to remove. Got her all fixed and running. She was a basket case!
Thanks to all the guys on this forum for the great help and advice over the months! Best of luck to y'all
Melloreel.

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bohdan
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Re: Coolant leak right side

Postby bohdan » Fri Feb 13, 2015 8:12 am

Thanks for the tips. Just looking so forward to diagnosing this issue! Ughhhh

Melloreel
Posts: 50
Joined: Tue Nov 19, 2013 4:17 pm
Location: Coastal Ga.
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2009 Streetglide

Re: Coolant leak right side

Postby Melloreel » Fri Feb 13, 2015 8:15 am

From my experience you might as well go ahead and remove the covers so y




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