Coolant dribble

Marky Mark

.060 Over
Joined
Aug 15, 2013
Messages
120
Location
Boca Raton Fl
Ride
"Christine" 2007 Rocket III
After parking the bike overnight after riding it, I've noticed a small amount of what appears to be coolant on the floor under the left lower corner of the radiator. The cap seems tight, I don't see or hear any leakage when riding nor right after I park it. The leaked amount is just a couple drops, less than a teaspoon. Is this likely overflow from being hot, a potential cap leak, or worse?

thanks.
 
I just went through that this summer. After the dealer replaced two rad caps and a new expansion tank, it turned out to be a hairline crack in the radiator.
 
I've heard that the radiator cap is the "usual suspect", and the likely cheapest fix, may try that first. If it's the radiator, I'm guessing any radiator shop can weld or solder up the leak?
 
At 1000km, my Roadster developed a coolant leak at the water pump, only a few drops but I would get coolant on my hand every time I wiped under the water pump.

Triumph did not hesitate to replace the pump under warranty.

Also make sure the radiator cap is on all the way.
 
I just had a leak fixed on the left hand side under the radiator top tank.
It started as a few spots and slowly got worse over two weeks of riding every second day.
It was repaired under warranty by my local triumph dealer.
 
i have got mine hot riding double up a mountain when you shut it off the coolant comes poaring out of the overflow. that happen twice so now i run it low in the tank. the hot lite never came on.
 
Mark, another simple thing to check for or fix is the radiator cap gasket. If it isn't seated properly it could be the cause of your leak, so take it off the cap and then put it back on carefully and see if that eliminates the source of your leak.
 
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