It would help if you told us where it's leaking and if it's a stock 90 degree valve stem? If at the rim, you have to change it... are your keepers installed correctly, or do you even have them? If the core is leaking, try taking it out and inspecting the seal area on it and in the stem... could have some crud on it or a burr. You may be able to repair it or get a new core. If it's rally damaged, you'll probably have to change the stem.T MOORE said:VALVE STEM LEAKING AGAIN. ANY IDEAS
Happen to know the brand or vendor?goldwingnut said:I bought some 90 deg solid metal stems with rubber washers and double locking nuts at the Wing Ding in Nashville and they are great. I have not had any problems with leaking stems as I did before.