Alright title says it all. Done plenty of searching but haven't found much. Anyone at all know the different seal sizes for each of the parts? Base, top cap, dedicated drip-tip, chimney seal, etc. It's not leaking now but I would like to buy a bunch of these seals before it starts. Would like to go to a place and purchase them individually at a store rather than buying them in sets on the internet and waiting for them to be shipped.
Kayfun 3.1 Seal Sizes??
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I need those too! I'm a car dealer and at the parts dept we have a huge assortment of o-rings, rubber, butil, silicone, you name it. I've been through the shelves and haven't found a single one that fits the Kfun clones (three different sources). So, HELP! Somebody must know. Right now all my clones are filled but as soon as I empty each one, I'll go measuring them with a good caliper and do a spreadsheet with the data. They must be available somewhere hopefully with MQOs of 10 or less. They're usually sold by the 100s, some 5x100! The must important (and difficult) IMHO is the little chimney one. I have a couple of spares tho. A pair of my clones had them.
The chimney ones that I have in reserve seem to be (according to my 0.1mm precision caliper) 8mm ed x 1.5 cross sec. That would make them 6.5mm id. Hope it helps.
The chimney ones that I have in reserve seem to be (according to my 0.1mm precision caliper) 8mm ed x 1.5 cross sec. That would make them 6.5mm id. Hope it helps.
OK, I emptied, cleaned and recoiled two Kfun 3.1 clones from different manufacturers. Measured the one most important seal, the chimney to top cap: While the seat in the top cap is exactly 6.48mm (round to 6.5) and the chimney pipe diameter at the place where it should make contact with the o-ring is exactly 4.99mm (5.0) according to my automotive grade, Mitutoyo electronic caliper with 0.01mm precision, recently calibrated by Pruf Mobil.
This would make the needed o-ring there 6.5*1.5*5.0mm. Close but no cigar! Both clones have o-rings with a 1.3mm section that seat correctly on the top cap (6.5mm ED) but slide down on their respective chimneys about 3~4mm before holding. A probable Inner Diameter of 5.2mm (dunno what would be that in Imperial) This would be the main reason of the leaks I'm experiencing.
Tomorrow I'm going, Kayfun clone in hand, to visit the local largest dealer in rubber (auto & hardware) parts (no profilactic items there)
and try to find the correct o-rings. Even one with a smaller outer diameter might manage a better seal, as long as it seals on the inside. However, the size seems to be a common metric one so I'm taking the caliper along with the tank and rubberware to measure in situ. If I find the right one/s, I plan to hoard a few dozens of them.
This would make the needed o-ring there 6.5*1.5*5.0mm. Close but no cigar! Both clones have o-rings with a 1.3mm section that seat correctly on the top cap (6.5mm ED) but slide down on their respective chimneys about 3~4mm before holding. A probable Inner Diameter of 5.2mm (dunno what would be that in Imperial) This would be the main reason of the leaks I'm experiencing.
Tomorrow I'm going, Kayfun clone in hand, to visit the local largest dealer in rubber (auto & hardware) parts (no profilactic items there)
and try to find the correct o-rings. Even one with a smaller outer diameter might manage a better seal, as long as it seals on the inside. However, the size seems to be a common metric one so I'm taking the caliper along with the tank and rubberware to measure in situ. If I find the right one/s, I plan to hoard a few dozens of them.
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