Tire Pump Maintenance

[dougfisk]

I have a recent Serfas tire pump. I noticed it dragging and binding lately. I took it apart to see why. It uses a rubber o-ring as the plunger seal. There was no grease or oil present, but some black powder, maybe graphite? My question is, does this design require lubrication? And if so, what works best?

 

[junknutz1975]

Interesting question

I've often wondered that myself. Anyone?



:mrgreen:

 

[clamdigger]

You can not use any petroleum based product on rubber o-rings because it makes them soft and makes them stretch. Google " Magic Lube " for what you want.

 

[outskirtscustoms]

That is a good question, my Schwinn pump is starting to not be up to snuff, it leaks down, and will only air tires to about 25 PSI and you have to pump like crazy to get that much. I know it's a cheap enough pump but I wonder if it's able to be re-built. (Yes I'm cheap)

 

[jerrykr]

That is a good question, my Schwinn pump is starting to not be up to snuff, it leaks down, and will only air tires to about 25 PSI and you have to pump like crazy to get that much. I know it's a cheap enough pump but I wonder if it's able to be re-built. (Yes I'm cheap)

I'd try squirting some oil in it, let it sit awhile and see if that revives it. Just did that to a cheap one I was given at a garage sale, and it does OK now.