Originally Posted by UCantTouchThis
(Post 22036968)
There is no problem as I have mentioned several times, I know what each one of my pumps measures after gauging them with the hand held gauge. I have a Specialized Air Tool, Blackburn, and a Lezyne floor pump. The lezyne being the most expensive and the most out of tolerance pump as far as PSI. Doesn't work any better than the others so being more expensive and the least accurate, I'd never buy another seeing the others are better for less money.
How do you know the Lezyne is not the correct one? Maybe all the others are inaccurate.
rekmeyata
04-29-21 06:40 PM
Originally Posted by UCantTouchThis
(Post 22036968)
There is no problem as I have mentioned several times, I know what each one of my pumps measures after gauging them with the hand held gauge. I have a Specialized Air Tool, Blackburn, and a Lezyne floor pump. The lezyne being the most expensive and the most out of tolerance pump as far as PSI. Doesn't work any better than the others so being more expensive and the least accurate, I'd never buy another seeing the others are better for less money.
What I can't figure out is why the hell do they no longer make those gauges so that a person can adjust it to make it accurate? I had a 50 year old Silca that could that, but none, not even the new Silca can be adjusted anymore. In fact from what I remember all floor pumps back then you could adjust the gauge accuracy by turning a screw either on the underside of the gauge or by twisting off the top glass part and the screw was right there next to the needle. This screw would adjust the spring and had marks of + and - so you knew which way to turn it. It is a spring, those things can change PSI readout from atmospheric changes to wear over time just as your bathroom scale will do. I did google check to see if any one made a gauge that can do that or if there were any way you can adjust one these days, nothing, I got nothing. We live in a throw away world, of course that is better for the environment and natural resources, so you either have to buy a new pump if the gauge goes bad or if that particular company makes a replacement gauge, or say screw it and use a separate handheld gauge.
WaveyGravey
05-01-21 05:10 AM
Which Specialized pump do you have? Are they easily rebuildable? Thanks
rekmeyata
05-01-21 11:50 AM
Originally Posted by WaveyGravey
(Post 22039474)
Which Specialized pump do you have? Are they easily rebuildable? Thanks
I don't own one a Specialized but they sell the rebuild kit, it can't be that difficult they're all pretty much the same, usually you just unscrew the top where the plunger goes into the body of the pump, then the plunger comes right out. Some of the pumps have set screw at the top on the body cap where the plunger goes into, remove that set screw, and then either it comes out with a back and forth twisting action or you then have to unscrew the top part, it behooves you not to loose the little screw! Then before you replace the seal, wrap a thin cloth around it and the seal head and use the plunger as a cleaning thing by running the cloth up and down in the tube, if you still see gunk inside then you'll need to soak that rag in Acetone and repeat the cleaning process. Next take some steel wool to the plunger rod and get any grime or corrosion off of it. When done with the cleaning take the rag off and pry off the seal and grease the all around the area that the seal was on, you pretty much want to cover the head that the seal goes on with a nice thick layer of grease, then install the new seal, reassemble the plunger and now it should work like new.
