This video demonstrates how to fix and repair a leaking bicycle pump quickly and easily. A common problem with bikes is a leak where the tire valve enters the pump head. To fix this, replace cracked or broken hoses with a new one, as they must withstand high pressure and patches seldom hold. If the head is leaking at the connection to the hose, replace the connector with an adjustable hose clamp.
To troubleshoot a bike pump, first know what the problem is. If it’s the seal or hose that is broken, replace it. If the pump head is out of place, reposition it. Common biking repairs you can master at home include applying a liquid silicone lubricant to the pump shaft and pumping up and down a few times to get the lube to work.
To fix a broken bicycle pump, follow these steps: 1) Remove and cut the hose, 2) Attach the hose and clamp, 3) Fill something with air, and 4) Use tools and materials to fix the problem.
In addition to fixing a leaking bicycle pump, there are also tips and hacks for fixing other common cycling issues at home. For example, if the pump head is leaking around the valve, replace the connector with an adjustable hose clamp.
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As mentioned before, O-Ring Grease, Silicone Grease, Di-Electric Grease (which is Silicone based) is a better choice for O-Rings as Petroleum-based lubricants eats up Rubber O-Rings. I use “Parker” O-Ring Lubricant or Di-Electric Ignition Grease or Dow-Corning DC4 (Now Dupont Molykote 4) as it will not dissolve the o-ring.
I liked your article because the construction of the pump despite the different handle and color of the stem is exactly as one of mine. I took it apart before I looked up your article. It had bits in grease, so I was not sure if it was on purpose or not. I opened it up because it was not pumping anything. After perusal your article, I concluded that the gritty bits where not by design and wiped them off, and I took the rubber ring off. I was absolutely sure I had a syringe somewhere with thermal paste for CPU but could not find it, so after cleaning off the ring, I just added a hand cream. I looked it up, the main ingredient was glycerine aka solidoil. Anyway, when it comes how you describe how the grease should be applied, if done the way you advise, the grease applied to the bottom of the rig does not do anything, but the one applied to the grove of the ring does fill the important bit between the ring and the plunger but applying it excessively is counter productive because it gets removed upon insertion back into stem / cylinder / column, call how you like it. So general advice, once you removed ring and wiped everything. I used a holy sock to do that btw, first to wipe the ring and plunger, then put the sock on the plunger and stuck it in the column. Anyway, so back to general advice. Grease the groove of the ring to accommodate the ring but put the excess inside the column. I clearly noticed how pump regained ability to push air as the grease got distributed along the inside of the column.
Thanks for this article! While my issue was with a different pump that was leaking pressure around the top, this article facilitated my being able disassemble my pump. In my case, the internal piston-end had come mostly unscrewed from the piston shaft. I was able to clean it and re-attach it, adding a bit of Teflon plumbers’ tape at the threads for a better seal. And since I had it apart, it’s all lubed up again with Teflon grease per your instructions and seems to both hold pressure and be a bit smoother. Thanks!
Hey, me again. I have run into the same issue, this time I cant resolve my problem the way I have been. I have found out the problem isnt in thr hose but somewhere in the pump. It is resisting from putting out any air. It doesnt even get passed the chamber. Have you had any problems like this one? Note: when I use my pump it isnt for a bike and I max it out (160 psi))