Old Topeak mountain morph pump o-ring
09-24-20, 04:50 PM
#1
Senior Member
Thread Starter
Old Topeak mountain morph pump o-ring
I have an old 20 years mountain morph and it quit working. I haven't ridden for a long time because of health and I worked on some friends bikes and was going to use it. It didn't work. When I took it apart the bottom had crud in it. After I put it back together it doesn't output much pressure. Because of it's age the rep at Topeak said they no longer support the pump and don't know what size o-ring fits the plunger.
Anyone out there happen to know which ring works. Like bikes there are a many standards for the rings.
When it is working it is the best frame pump you could ask for.
Anyone out there happen to know which ring works. Like bikes there are a many standards for the rings.
When it is working it is the best frame pump you could ask for.
09-24-20, 06:31 PM
#2
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I have an old 20 years mountain morph and it quit working. I haven't ridden for a long time because of health and I worked on some friends bikes and was going to use it. It didn't work. When I took it apart the bottom had crud in it. After I put it back together it doesn't output much pressure. Because of it's age the rep at Topeak said they no longer support the pump and don't know what size o-ring fits the plunger.
Anyone out there happen to know which ring works. Like bikes there are a many standards for the rings.
When it is working it is the best frame pump you could ask for.
Anyone out there happen to know which ring works. Like bikes there are a many standards for the rings.
When it is working it is the best frame pump you could ask for.
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Stuart Black
Plan Epsilon Around Lake Michigan in the era of Covid
Old School…When It Wasn’t Ancient bikepacking
Gold Fever Three days of dirt in Colorado
Pokin' around the Poconos A cold ride around Lake Erie
Dinosaurs in Colorado A mountain bike guide to the Purgatory Canyon dinosaur trackway
Solo Without Pie. The search for pie in the Midwest.
Picking the Scablands. Washington and Oregon, 2005. Pie and spiders on the Columbia River!
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09-25-20, 03:48 AM
#3
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Harbor Freight sells boxes with an assortment of O rings.
Remember to use a little silicone grease when you replace it.
Remember to use a little silicone grease when you replace it.
09-25-20, 07:09 AM
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Yep, Ace is the place. I'm trying to keep my LHS (hardware store) in business within 6 miles of two Home Depots and two Lowes. So far it's working.
09-25-20, 09:39 AM
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If you have the old O ring then checking the bolt/screw multibox area for O rings, you may have to go to several
hardware stores or big boxes as restocking of these can be hap hazard but something close may be available.
The critical measurement is the diameter of the rubber itself, secondly the overall diameter of the ring, too small
just means you stretch it to fit and will reduce the diameter of the rubber itself. A bit of silicone lube is a very good
idea.
hardware stores or big boxes as restocking of these can be hap hazard but something close may be available.
The critical measurement is the diameter of the rubber itself, secondly the overall diameter of the ring, too small
just means you stretch it to fit and will reduce the diameter of the rubber itself. A bit of silicone lube is a very good
idea.
09-30-20, 03:06 PM
#6
Senior Member
Thread Starter
09-30-20, 03:09 PM
#7
Senior Member
Thread Starter
I found them on-line. If you have an older Combo Master-blsaster I have plenty of 0-rings for the plunger and brass check valve. Send me a SASE and I will send you 4 until they run out.
David
David
