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Old 01-07-2004, 12:00 AM   #1
Scooby Specialist
Member#: 12176
Join Date: Nov 2001
Location: SoCal
2002 Geo Metro

Exclamation Zenki valve stems blow (no really!)

Just wanted to put out a warning/disclamer for anyone who is thinking about using *free*(see cheap) aftermarket valve stems. Again, this is MY experience. Many have had no problems with these... I did.

I just got a new set of tires and took them to Costco to get mounted. I decided to use the valve stems that came with the Zenki lugs I ordered from Revolutions Motorsports. I made sure and asked the guy if aftermarket stems were reliable, and he said "sure".

So this morning, halfway to work, I stopped at a gas station to get my tire pressures right. When I went around the car to check the pressures with the guage, 2 out of 4 stems DID NOT stop letting out air! I tried pushing in the needle thinking it was stuck, but the only thing that (kind of) stopped them was the cap.
Worried that I would end up with two flats by the end of work, I went back to Costco. The same guy was there, and when he saw me, before I said anything he says "the valve stems, right?"
He told me they were junk valve stems (good call) and to just use normal ones.
Even when he went to take off a non-leaking one, it BEGAN to immediatley leak when the cap was removed.
That is 3 out of 4 failure!
I'm bummed, because of the hassle, the lost money (I ended up losing a half day of work), and the quality of the product.

That is basically an excerp from a message I sent to Rev MS. I explained that I was in no way blaming them, just making them aware that a product that they are selling/including is potentially crap.

Again, maybe this is unheard of. But c'mon, 3 out of 4?!?!
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Old 01-07-2004, 01:54 AM   #2
Scooby Newbie
Member#: 25460
Join Date: Sep 2002
Location: SCIC for Life
2002 WRX Wagon


wow that sucks
Nicotin2 is offline   Reply With Quote
Old 01-07-2004, 01:58 AM   #3
Scooby Specialist
Member#: 5711
Join Date: Apr 2001
Location: Bentonville, AR
2004 STI


It just happens to me too and I freak out and I used a tweezer and just need to turn the horizontal thing in the middle across the needle itself and tighten it and it will fix it. It's no big deal. Go check it out and see if this fix or not on your car
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