Coolant Leak...Need some help. - Honda RC51 Forum : RC51 Motorcycle Forums
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post #1 of 15 (permalink) Old 01-28-2010, 08:54 AM Thread Starter
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Coolant Leak...Need some help.

Ok, So my RC has been sitting on a stand for the most of the winter, and ive noticed a very small puddle of coolant on the ground, in the frint, center, just behind the wheel. As the winter progressed, the puddle got bigger, after each time i cleaned it up....

So i took all the pastics off, cleaned everything up, and ran the bike, and i cant find any leak, i let it sit, no leak...i filled up the resevoir and cant find anything. All i can see, is a very small amount of moisture on the left side radiator at the bottem...

I cant find ANYTHING else...any ideas????

2001 RC51
2003 CBR 600RR
2005 Custom Harley
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post #2 of 15 (permalink) Old 01-28-2010, 09:06 AM
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Since you didnt see any comming from the rad when you ran it I would guess the clamp on the hose above that side of the radiator is either loose or the hose pulled up and knocked the clamp cockeyed. I just swapped out a bad radiator and it was tough gettin gthose clamps on the hoses straight..
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post #3 of 15 (permalink) Old 01-28-2010, 12:50 PM
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Also as the rubber ages due to heat and ozone and loses it's flexibility.
So the clamp can loosen on the hose for that reason as well.
When I have any fairing off, I check my hose clamps just to be sure.
Especially the left ones.
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post #4 of 15 (permalink) Old 01-28-2010, 04:17 PM
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My sp1 had a split on the bottom of the left hand radiator where the bracket comes off, and when i ran the bike it stoped due to the heat, i think it,s a fault with them, got mine repaired.
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post #5 of 15 (permalink) Old 01-28-2010, 04:26 PM
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I thought of that too ravo but the small amount leaking sounds more like a hose/clamp issue.. I just swapped my radiator out and it got way worse when I ran it..
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post #6 of 15 (permalink) Old 01-31-2010, 07:02 PM Thread Starter
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Any idea what a new radiator would cost? My fear is that this is not going to be cheap...

2001 RC51
2003 CBR 600RR
2005 Custom Harley
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post #7 of 15 (permalink) Old 01-31-2010, 08:03 PM
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Quote:
Originally Posted by SinisteRC View Post
Any idea what a new radiator would cost? My fear is that this is not going to be cheap...
Roughly $260. The right radiator is slightly more expensive than the left.
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post #8 of 15 (permalink) Old 01-31-2010, 08:23 PM
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I just saw a left rad on ebay for 225 buy it now... I bought a superhawk radiator that the guy at the salvage place here locally thought was an rc for 200.. You can always have them repaired although I just learned its not a long term soloution.
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post #9 of 15 (permalink) Old 02-01-2010, 11:32 AM
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I'll be getting mine repaired soon. As long as they weld it right it will hold up fine.
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post #10 of 15 (permalink) Old 02-01-2010, 12:28 PM
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Ill be taking the one that broke to be repaired and put it back on so i can have a fan for the summertime. Ill keep the superhawk rad as a backup..
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