First of all, I have tried using google. Either I'm using the wrong search terms (probable) or I'm encountering an entirely unique problem (less likely). In either case, I haven't been able to find helpful information.
So here's my problem: The gun will push out grease, and it seems like a reasonable amount per pump, BUT (and this is a huge but), it needs several minutes in between pump to .... build pressure? If I were to give it a second pump right away, nothing. If I wait maybe 3 minutes, I get no resistance for the first 3/4 of the pump, and so 1/4 pump worth of a pump. I haven't actually timed it, but I have to wait at least 10 minutes after pulling back on the handle before pumping down or else I'm just wasting my time. I know how you're supposed to use a grease gun, but I don't understand quite how it does what it does. Seems more complicated than a caulk gun, and I'm no good at fluid dynamics. Anyway, answer any of the question below that you want to.
Is this an air pocket? It doesn't really seem like the descriptions on the web of what I'd expect.
Do I need to replace some seal or o-rings or something? (It is pretty old, so that wouldn't surprise me.)
Is a new tube of grease likely to solve all this on it's own?
--If that last, and I should just load up a new tube and go through some sort of burping ritual, would I still be *better* to rebuild it to some degree?
So here's my problem: The gun will push out grease, and it seems like a reasonable amount per pump, BUT (and this is a huge but), it needs several minutes in between pump to .... build pressure? If I were to give it a second pump right away, nothing. If I wait maybe 3 minutes, I get no resistance for the first 3/4 of the pump, and so 1/4 pump worth of a pump. I haven't actually timed it, but I have to wait at least 10 minutes after pulling back on the handle before pumping down or else I'm just wasting my time. I know how you're supposed to use a grease gun, but I don't understand quite how it does what it does. Seems more complicated than a caulk gun, and I'm no good at fluid dynamics. Anyway, answer any of the question below that you want to.
Is this an air pocket? It doesn't really seem like the descriptions on the web of what I'd expect.
Do I need to replace some seal or o-rings or something? (It is pretty old, so that wouldn't surprise me.)
Is a new tube of grease likely to solve all this on it's own?
--If that last, and I should just load up a new tube and go through some sort of burping ritual, would I still be *better* to rebuild it to some degree?