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Topeak Joe Blow Pro, maintenance?

Old 05-13-17, 07:26 AM
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RobbieTunes 
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Topeak Joe Blow Pro, maintenance?

I know nothing of bike pumps, got one of these about 5 years ago, great pump. It's been losing PSI power over time, was down to 80 psi max and not getting much "push" per handle stroke. I pulled the innards and greased the O-ring, got it up to 100 psi, but that's the new "limit."

Is there maintenance involved in these pumps? I'm not a shop, but build and work on a lot of bikes (no bike shop here). The pump is handy, as my Walmart compressor only goes to 80psi.

Do shops maintain their pumps? Any input is welcome.
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Old 05-13-17, 08:18 AM
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Originally Posted by RobbieTunes View Post
I know nothing of bike pumps, got one of these about 5 years ago, great pump. It's been losing PSI power over time, was down to 80 psi max and not getting much "push" per handle stroke. I pulled the innards and greased the O-ring, got it up to 100 psi, but that's the new "limit."

Is there maintenance involved in these pumps? I'm not a shop, but build and work on a lot of bikes (no bike shop here). The pump is handy, as my Walmart compressor only goes to 80psi.

Do shops maintain their pumps? Any input is welcome.
Greetings Robbie, that's about all we do in the shop, however we use silicone grease. Regards
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Old 05-13-17, 10:59 PM
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Originally Posted by RobbieTunes View Post
I know nothing of bike pumps, got one of these about 5 years ago, great pump. It's been losing PSI power over time, was down to 80 psi max and not getting much "push" per handle stroke. I pulled the innards and greased the O-ring, got it up to 100 psi, but that's the new "limit."

Is there maintenance involved in these pumps? I'm not a shop, but build and work on a lot of bikes (no bike shop here). The pump is handy, as my Walmart compressor only goes to 80psi.

Do shops maintain their pumps? Any input is welcome.
You can buy a rebuild kit for that pump. That might fix that issue
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Old 06-19-20, 03:35 AM
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Our Joe Blow was squeaking and a bit painful to use. Had some 3-In-One Silicone Lubricant spray, and sprayed it on the plunger, and a fair bit into the gap with the main pump body, and it's now quiet and working much more smoothly.
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Old 06-19-20, 06:38 AM
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I also try to clean out the cylinder as well as I can, with some kind of home made swab like a piece of rag on a stick. Then add a coating of grease down the cylinder.

That reminds me, I rode in rain and dirt last night and I need to clean out my frame pump, which is mounted on the bottom of the down tube. I hate that gritty feeling when I need that pump.
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Old 06-19-20, 07:19 AM
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Originally Posted by operator View Post
You can buy a rebuild kit for that pump. That might fix that issue
The rebuild kit is basically a new head -- you just unthread the old one, and thread on the new one. I've replaced mine twice in about 15 years, and it always makes the pump work as well as when new.

I believe the first time, I contacted Topeak and they sent me the new head for free(!) The second time, I happened to be in a shop that had the head in stock, so I bought it - I think it was about ten bucks.
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Old 06-19-20, 09:39 AM
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Note: zombie thread.

Originally Posted by WilfForrow View Post
Our Joe Blow was squeaking and a bit painful to use. Had some 3-In-One Silicone Lubricant spray, and sprayed it on the plunger, and a fair bit into the gap with the main pump body, and it's now quiet and working much more smoothly.
I'm surprised this worked for you. I did the same thing to my Joe Blow Pro and totally ruined all the rubber o-rings. They swelled up and the pump didn't work right. Fortunately, Topeak sells replacements. Or at least they used to. After a thorough cleaning and lubing with actual silicone grease (NOT spray) the pump has been working fine ever since. It's about 10 years old now.
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Old 06-19-20, 02:10 PM
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Take the o-ring to a hardware store and replace it. They do wear and lose their shape.
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