I tried a 90 degree valve stem on a rear tire - can't remember where I purchased it and being for a C-10 it had no TPS doodadery. Mine caused a fairly quick loss of air pressure of the rear tire (not the one that caused injuries in 2020). Upon examination of the valve stem it appeared that centrifugal force of the spinning tire may have caused the valve stem to crack near the 90 degree bend. This stem was all rubber - I'm sure steel would withstand that force better. This is all conjecture on my part, The stem may have failed for other reasons.
I got home on the leaky stem by using electrical tape to lift the stem away from the rim - the opposite direction that centrifugal force had applied to the spinning tire. In any event, I went back to conventional valve stems after that.
I installed at my last tire change. It is a super easy process by just using the appropriate Allen head socket to remove the TPMS sensor from the stem. I put a tiny amount of silicone grease on the new O-ring of the 90 degree stem to allow it to seat best. The maintenance manual has a torque specification for installing. I love the new stems as I am not fighting with a brake rotor to check and fill my tires.Who has actually installed these (from Murph’s Kits or ?) on a C-14? How hard was it?
Did you heat that and reshape it?Ron, this is the answer for filling tires with straight calve stems. They clear the rotors and give you good leverage to be able to press on the valve properly.
I have a new little project. Thanks Jorge.Custom work by a local shop named Silva Vise & Hammer works.
No heating needed Bud.
I bent it a little at a time, moving it out on the vise as I bent each little bend. Probably 6 little bends, then put heat-shrink tubink to cover the dings and give better grip.
Ha.Tom, you plannimg on rebuilding a Chevy small block?
Actually, one of the CMA chapter members in Orange Park FL haf about 3x thst many tools.
@Strawboss, I bought the ones Murph sells, installed one so far. It was easy, fast, and works great.
I must've been fortunate...I actually bent three and none broke. Probably because I bought the cheap steel ones??As I was using brass and it was more bendable and therefore less forgiving, I bent it less and got a swivel head for the male air chuck, you can see where I got too aggressive and it broke. This works perfect, I stick it through a hole in the rotor, and it lines up great.View attachment 38306
Nope. I actually scrounged up some patience and a propane torch. Gotta be careful because once it gets hot enough, it'll bend quickly. It took three attempts to get it done. I had already failed with a brass tube model and didn't want a repeat failure. I discovered that the one with the brass tube threaded in to the chuck.Wow...nice work!
You must have a tube bender.
I had the same result with 90 degree rubber valve stems. I was stranded on the highway for nearly two hours waiting for a wrecker, all because I could air up the tire at the gas station. My fix now in standard valve stems and the portable Airmoto air pump. It has a flexible tube. If all you are doing is adding a few pounds of air, the battery operated Airmoto pump is the Bomb digity. Love mine. I won't leave home without it.I tried a 90 degree valve stem on a rear tire - can't remember where I purchased it and being for a C-10 it had no TPS doodadery. Mine caused a fairly quick loss of air pressure of the rear tire (not the one that caused injuries in 2020). Upon examination of the valve stem it appeared that centrifugal force of the spinning tire may have caused the valve stem to crack near the 90 degree bend. This stem was all rubber - I'm sure steel would withstand that force better. This is all conjecture on my part, The stem may have failed for other reasons.
I got home on the leaky stem by using electrical tape to lift the stem away from the rim - the opposite direction that centrifugal force had applied to the spinning tire. In any event, I went back to conventional valve stems after that.
I bought a Lexin inflator some weeks ago. Last week I tested it on my rear tire (in the garage, I let all the air out).
I set ut to 42 PSI, and turned it on.
I'll do a more complete review later, but in just over 10 minutes my rear, 190/55R17 was at 42 PSI, and a few seconds later it shut off. Very pleased.