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post #1 of 6 (permalink) Old 01-10-2017, 02:16 PM Thread Starter
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Join Date: Jun 2007
Location: Woodstock, Illinois, USA
Year: 2002
Make: Honda
Model: GL1800ABS
Posts: 94
GL1800A 2002 coolant leak

At the end of the riding season (yes, I live in the freezing part of the country), I noticed my coolant level dropping slightly and smelled a little antifreeze but never saw any dripping anywhere.
Now that it is very cold, I hooked up a pressure tester and found coolant dripping from both sides of the engine and finding coolant on top of the engine.
I've have this king of problem with my 1200, when was very cold, it leaked from the hoses.
I imagine the leak is from one of the cross over/distribution hoses and probably just need the clamps tightened.
I'm taking it apart and i'm down to the air box, looks like i need to remove the entire fairing just to get the side hose of the air box in order to take it out.
I need to get this running by mid May when I'm taking a 8K miles trip to Alaska.
Does anyone know an easier way to get to the coolant hoses? I could not find anything on YouTube.
Any other idea would be more then welcome.
Thanks for the help

Kiko - The Brazil Nut.
02 GL1800ABS (Current)
89 GL1500
86 GL1200 Aspencade
85 GL1200 Aspencade
83 GL1100 Interstate
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post #2 of 6 (permalink) Old 01-10-2017, 02:48 PM
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Join Date: Nov 2007
Location: Amity, Arkansas, USA
Model: 2010 GL1800
Posts: 19,707
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Pull the gas tank, there are several clamps you can get to under it and if you have thought about a new shock or aftermarket rear spring it would be the time to do that also.
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Darksider #304 the force is strong in this one.
NRA endowment life member
Bright lights, protective gear and paying attention saves lives. Loud pipes just annoy the people behind you.
Wild Rhino Arkansas chapter
2010 1800 pearl yellow
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post #3 of 6 (permalink) Old 01-10-2017, 02:53 PM Thread Starter
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Join Date: Jun 2007
Location: Woodstock, Illinois, USA
Year: 2002
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Model: GL1800ABS
Posts: 94
I will try that first... it's a whole lot easier to remove the tank... Thanks for the tip.

Kiko - The Brazil Nut.
02 GL1800ABS (Current)
89 GL1500
86 GL1200 Aspencade
85 GL1200 Aspencade
83 GL1100 Interstate
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post #4 of 6 (permalink) Old 01-15-2017, 11:51 AM Thread Starter
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Join Date: Jun 2007
Location: Woodstock, Illinois, USA
Year: 2002
Make: Honda
Model: GL1800ABS
Posts: 94
Thanks Dave... found the leak on the splitter just out of the water pump.
I also found some signs of leak at the water pump, I tighten all clamps I can see. Pressure tested and holding and VOILA... pressure holds
Thanks a lot for the tip, it saved me a heck of a lot of work.
Now my next question.
The hose clamps seams very slim and not very strong. I thought of replacing them with better ones but i'm afraid if i tight them too much, it might crack those plastic tube they use.
Ideas?
Thank a bunch.

Kiko - The Brazil Nut.
02 GL1800ABS (Current)
89 GL1500
86 GL1200 Aspencade
85 GL1200 Aspencade
83 GL1100 Interstate
fcesar is offline  
post #5 of 6 (permalink) Old 01-15-2017, 12:17 PM
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Location: Amity, Arkansas, USA
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Nothing wrong with the OE clamps, wish they had used spring clamps like Honda cars though, they tighten themselves.

Darksider #304 the force is strong in this one.
NRA endowment life member
Bright lights, protective gear and paying attention saves lives. Loud pipes just annoy the people behind you.
Wild Rhino Arkansas chapter
2010 1800 pearl yellow
[SIGPIC]
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post #6 of 6 (permalink) Old 01-22-2017, 02:38 PM
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Year: 2008
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Model: gl1800p
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Quote:
Originally Posted by fcesar View Post
Thanks Dave... found the leak on the splitter just out of the water pump.
I also found some signs of leak at the water pump, I tighten all clamps I can see. Pressure tested and holding and VOILA... pressure holds
Thanks a lot for the tip, it saved me a heck of a lot of work.
Now my next question.
The hose clamps seams very slim and not very strong. I thought of replacing them with better ones but i'm afraid if i tight them too much, it might crack those plastic tube they use.
Ideas?
Thank a bunch.
Even the stock clamps can crack the plastic tube. Don't ask how I know.
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