Before I buy these, is it necessary to remove the valve stem from the inside of the original valve? Do they just go right onto the existing valve?
1244358
Hi Phil, They go right over the existing valve, piece of cake. They have been great. One year of use and no air loss.
1244359
They're easy sneezy to install- remove the cap, screw on tightly (about 1/8th to 1/4th turn beyond finger tight) then make sure the long end is rotating lengthwise with the tire- you're golden.
1244360
No need to remove valve stem core from original valve. They go right on the existing valve. On my mc, I only install them when checking &/or adding air - can't leave them in place because they interfere w brake disc.
729798
I think so. I think my valves are Jandy, they look like Jandy's. All the valves and replacement controllers have the 4 mounting machine screws at the same place. You might have to open it up and modify the hard stops in the controller. The instruction manual tells you everything about modifying it.
2230438
I want to edit my answer because I had said they do work, but I own the old ones. It seems now they don't work and have a different valve (new system)
221081
No, you should not drill out the hole to fit a Schrader valve. Where the hole is drilled for the valve is the weakest part of the rim, and drilling out would almost guarantee failure. The whole point of presta valves is that they are smaller diameter and can do with a smaller hole, leave more metal, and do with a narrower and lighter rim. If these were made of steel, I would say that it might be possible, but they are an aluminum alloy. I bought these and was tempted to drill them out since I didn't have presta valve inner tubes on hand, and I'm glad I didn't. I ordered thick puncture resistant presta valve inner tubes and put Continental Gatorhardshell tires on them, and I haven't had any problems at all with this combination after about 1000 miles.
852882
They should fit most any standard valve stem, BUT I found out that my Mercedes has cheap looking valve covers but they have a special seal and function that's needed for normal tire pressure monitoring. Also, the tire store said these Edelsign's can corrode and not come off easily.
1108299
Great question - here's the answer: The "valves" are included - they are hidden in the pump head assembly. This Topeak (Road Morph) has a head assembly that does NOT automatically adapt to the tire valves (Presta or Schrader) - instead the user has to do some manual adjustment. What manual adjustment you ask? Well, my Topeak shipped with the pump head set for presta valve. I quickly discovered my tire valves were schrader, and not compatible with the pump. After some googling and head-scratching and looking at the diagram on the packaging, I finally figured it out DOH. Gently unscrew and take off the little metal cap on top of the pump head (tip). Then gently pull out the black rubber piece inside. For the Schrader, make sure the larger opening is facing outward, and the small opening is facing the needle inside the pump head. Having thus flipped it, push the black piece back into the head. Finally Screw the cap back on - and presto ;) you have a Schrader compatible pump head.
1254579
I ordered these diaphragms because it said "with stems" and what arrived did indeed have the little white stems in the middle. It is deceiving because the picture does not show the stem, so I hope this is still the case. That is what the handle attaches to. The valves are a different item to purchase and they fit as a separate part underneath. Not sure what you mean by "start valve" unless you have a different type of pump, but the valve on mine is a completely different piece. This fits the older style "classic" manual pump. Hope this helps.
1473922
I just had to replace the solenoid, not the valve. The solenoid just unscrews. Make sure to replace the wires like they were connected.
469978
Generally when you buy valve stems, they come with the valve/core as part of the package. These particular valve stems do indeed come with the valve/core included.
1758662
I don't know. Mine came with a couple of attachments that I didn't need and don't use, maybe that was for your special valves. I did not use the part and lost it long ago.
584976
No, it screws into the brass valve stem. It appears to be a quality item!! Bob
1699965
you don't ever replace it. It is a valve. It get's glued on. I have many of them. No problems.
435044
Arn't presta valve stems always threaded? Our order was for Schrader valve.
1473924
You need to loosen the connectors and insert the new valve. If there are no connectors you will have to cut the pipe and put in a union. Not a big job.
1727528
I had to cut the ones I got to the same length as the original ones and then they worked just fine.The 1 inch pipe fitting is the only other thing you need to be concerned with.
1381839
Valve stems do not come with the tires. Yes, it is a good idea to replace them with new tires, not absolutely necessary but they tend to dry rot over time.
876437
Your assumption is correct, and it is necessary. I found the will have a tendency to overflow the primary tank, especially if you remove the cap. I used a differn't gate valve because of my configuration