Sidmouth Posted February 22, 2015 Posted February 22, 2015 Ok So I have done this many times, changing tyres sealant values the lot.This one has just got me, it keeps leaking from the valve, I think where it joins the rim, I have tried a new value, I have re taped the rim, overdosed on Sealant and yet it still leaks from the valve, any ideas?
2bliss Posted February 22, 2015 Posted February 22, 2015 Correct type of valve for the valve hole - shrader/presta? Some rims require a special type of valve or rubber insert due to shape of rim. Try cutting a valve from a tube so you have more rubber to create a seal?
Firozfx Posted February 22, 2015 Posted February 22, 2015 Had the same problem recently on a new ZTR flow rim. Changed rim tape, new valve and new stans. Kept on leaking from valve base. Eventually gave up and took it to a LBS for repair at short notice. They had the 25 mm tape the rim needed. I used 21 mm tape rolled twice. Went back next day to pick it up but they were too full to redo my tubeless. Turns out this last try of mine worked and tyre was still inflated. So perhaps persistance is what you need to do. Inflate it and ride immediately to get the stans around the rim. It eventually seals. Just make sure the valve screw at the base is tight enough
madmarc Posted February 22, 2015 Posted February 22, 2015 Had the same problem, after lots of swearing I found the rim tape damaged by the tyre lever so air escaping into the rim chamber which then leaks through the valve. Cut the damaged rim tape piece out and stuck on a new piece overlap about 20mm problem sorted
Louis for real Posted February 22, 2015 Posted February 22, 2015 Same problem as OP on my back wheel, have done so many of my own special ghetto tubeless conversions before yet it still leaked.had a Joe's tubeless rim strip laying around that was installed on my bike when new and that totally isolates the rim wall from the air yet still the air comes out the valve??? re-tapeoverdose of sealantnew Tyretubeless strip nothing works...
TALUS Posted February 22, 2015 Posted February 22, 2015 I think that is mostly not the actual leak but that the air tracks through a nipple into the rim and out at the valve. I have spent many hours swearing at the wheels before coming to this conclusion. I have mostly solved the problem by new (excessive?) re-taping.
2bliss Posted February 22, 2015 Posted February 22, 2015 No tape issues since switching to Gorilla Tape. Used to use Stan's Yellow Tape. The Gorilla tape is also easier to apply right.
grego12 Posted February 22, 2015 Posted February 22, 2015 had the same problem before.....put twice the amount of sealant required in and it sorted it out
Skylark Posted February 22, 2015 Posted February 22, 2015 If its not sealing you not using enough sealant! Find that YouTube stans video on how to shake your wheel to spread the sealant everywhere. Overdose properly on sealant, pump your tyres with air to their max allowable pressure, shake like the stans video and then leave to stand for half a day/overnight etc. Repeat as needed, some tubeless setups are biatches to seal no matter what you do but if you repeat the steps enough any setup will eventually seal. A tyre a while back took about 5 pump up and shake sessions but once they sealed and held the pressure, that was it done.
johannrissik Posted February 22, 2015 Posted February 22, 2015 Ok So I have done this many times, changing tyres sealant values the lot.This one has just got me, it keeps leaking from the valve, I think where it joins the rim, I have tried a new value, I have re taped the rim, overdosed on Sealant and yet it still leaks from the valve, any ideas?What rim?
Louis for real Posted February 22, 2015 Posted February 22, 2015 No tape issues since switching to Gorilla Tape. Used to use Stan's Yellow Tape. The Gorilla tape is also easier to apply right.where did you buy this? almost no one stocks it in SA except for a guy in CPT?
Warren911 Posted February 22, 2015 Posted February 22, 2015 I got some from Builders Warehouse in Boksburg where did you buy this? almost no one stocks it in SA except for a guy in CPT?
Louis for real Posted February 23, 2015 Posted February 23, 2015 I got some from Builders Warehouse in BoksburgShot ill give them a tinkle
Sarge Posted February 23, 2015 Posted February 23, 2015 Hi guys, I am lucky and have never realy had a problem ( touch wood ), but recently had a wheel that started leaking after a few months. Did all the normal things and eventually found that the Stans tape had punctured on a spoke "hole". This from the pressure of the air in the tube on the tape. It forms dimples on the holes. My LBO said that I must first put a strip of insulation tape to protect the Stans tape. All ok now. Regards Sarge.
Sidmouth Posted February 23, 2015 Author Posted February 23, 2015 Thanks GuysI got it, leak sealed,Basically just pumped in more sealant and bounced it around that the value to get it into the value and valve cavity, simply enough after the fact.
2bliss Posted February 23, 2015 Posted February 23, 2015 where did you buy this? almost no one stocks it in SA except for a guy in CPT?Strange. Just about every LBS in Potchefstroom and Klerksdorp stocks it. If we can get it here in the gramadoelas, it should be easy to find a stockist in Gauteng.
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