Stop my drip....help please....

Be very careful on how tight you make the clamp. The hose nipple can crimp and then it's deformed and will never stop leaking.

If you get really interested in looking at it. Pull the hose and inspect the hose end and nipple for scratches or cracks. It could be a simple defect in the nipple when produced, but would then require a repair or new expansion tank. If all looks good, get some high temp silicone sealant and put a little on the nipple and clamp up the hose. Let it cure for 24 hrs and fill with fluid. That's kind of a redneck way of stopping the leak, but it's worked for me on an old Ford.

 

I would send a PM to Dave Helms @ Scuderia Rampante. I'm quite sure he has some guidance at hand for you.

Cheers,

Hank

 

thats a good idea

 

Silicone hoses don't compress like stock hoses. I use two clamps everywhere.

 

Old school, but on the race cars we use a seler as well as 2 clamps for Endurance cars.

On street cars, I still tend to use a little aviation gasket sealer around the tube, helps seal.

 

I have wondered about doing this. What happens when you remove a hose? How do you remove the sealer from the inside of the hose and the outside of the tube without damaging either?

 

What brand of sealer?

Would good old RTV work?

 

If I may comment, and a bit off topics there are two types of curing agent in RTV one is citric acid. The other smells like tooth paste and is non corrosive.
Reading this I would say the clamp is resting on the nipple of the tube, as has been suggested try repositioning the clamp more towards the end of the hose.

 

+1

 

Pretty sure you mean acetic acid. Hence the vinegar smell.

 

Make sure you also look carefully at the exterior surfaces of the nipple (spout) on the tank. It does not take too much of a scratch, dent, distortion, or spot of corrosion to interfere with the hose's ability to make a good seal.

 

A dose of penicillin usually does the trick.

Oh, wait...

 

That Permatex Aviation sealant has been used successfully for many years and it works great to fill minor imperfections on a nipple, however I have no experience with using it on silicone hoses. I have not had the best of luck with silicone hoses; especially small ones; the big ones on coolant hoses-- no problem, but my preference is neoprene for the small diameter hoses.