2004 Daytona 600 Coolant Pipe Issue

Strange, not standard if its fouling. Upload a pic, please

 

There's some serious corrosion there ! You need to get in there with a stiff (nylon) bristle brush or soft (brass) brush and get that area clean and clear to view ! Then run engine until fans cut in and look closely at that area to spot the leak. It could be corrosion externally on the aluminum pipe coming out of the thermostat , or rubber hose perished !

 

OK , if its the rubber hose replace it as it's possible it has lost a lot of the materials bonding properties , Rubber coolant pipes can with age and many cycles of heating and cooling , lose integrity in the rubber to belts internally ! They become porous , the external layer is the final "seal" . It looks to have swollen and rubbed thorough on the bolt head there ! Or scenario two , the alloy around the bolt has oxydised and it's leaked past the threads ???

 

The hose is past it’s best and has bulged out causing the leak
Replace the hose and your good to go

 

And I wouldn’t be surprised if there’s a build up of corrosion on the aluminium where the hose attaches, hence the bulging seen in the pic. Clean all that off whilst being careful as there’s often a small ridge that the hose clip goes over, if you see what I mean.

 

Perhaps there is room to move the jubilee clip to ease the clearance a little. Normally there is a couple of places it can be located.

Edit. You may be able to put the clip between, the hose and the bolt.

 

New
https://www.worldoftriumph.com/partscatalog/catalog/browse/catalog/triumphmc/modelid/3809/

 

This! see this sort of thing a lot on car engines...as said a clean up and replace the hose and dont over tighten the hose clip.