jking- Where did you source the Yong heng rings?(They look like the same I had for my Tuxing) Appreciate all the help both you & Kopfjaeger have given me-
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Air Venturi Compressor Won't Build Pressure
- Thread starter Kopfjaeger
- Start date
They sure might, where did you find those available? I got my split rings for AliExpress.
jk
jk
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Same Aliexpress- Found page with the plug that holds bottom valve & scrolled down-tried linking but No bueno-Why I had several pics of same will try to re-locate for you- says their for Yong Heng but solid(not split)aliexpress.com/item/32947532623.html?spm=a2g0o.detail.1000014.3.71df419cN34dQc&gps-id=pcDetailBottomMoreOtherSeller&scm=1007.13338.128125.0&scm_id=1007.13338.128125.0&scm-url=1007.13338.128125.0&pvid=a1200502-e469-4929-98fb scroll down page
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Try again aliexpress.com/item/32947532623.html?spm=a2g0o.detail.1000014.3.71df419cN34dQc&gps-id=pcDetailBottomMoreOtherSeller&scm=1007.13338.128125.0&scm_id=1007.13338.128125.0&scm-url=1007.13338.128125.0&pvid=a1200502-e469-4929-98fb Just scroll down page on left.
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I ordered two sets of these last night. Figured for about $20.00 total with shipping and all...take a chance!!
https://www.aliexpress.com/item/4000288051439.html?spm=a2g0o.productlist.0.0.7e53ff5dEpLF6N&algo_pvid=798406ea-8c10-4507-87f1-ce69940e1c6b&algo_expid=798406ea-8c10-4507-87f1-ce69940e1c6b-24&btsid=f2c55369-4e81-4fb0-aced-46f9033cd243&ws_ab_test=searchweb0_0,searchweb201602_10,searchweb201603_53
https://www.aliexpress.com/item/4000288051439.html?spm=a2g0o.productlist.0.0.7e53ff5dEpLF6N&algo_pvid=798406ea-8c10-4507-87f1-ce69940e1c6b&algo_expid=798406ea-8c10-4507-87f1-ce69940e1c6b-24&btsid=f2c55369-4e81-4fb0-aced-46f9033cd243&ws_ab_test=searchweb0_0,searchweb201602_10,searchweb201603_53
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Got my 2 valves in (#12 & 13) on Chinese schematic-(the lower one was broken & upper one carboned up- until I can get piston rings will reassemble & see if that works(original rings only have 5 hrs. on them & look good, so crossing my fingers & hope it works.
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Sounds like you found the culprit. Did you get any photos of the broken one, which I think is the large valve? If you have any pitting on the seat #14 you can remove it with 400 grit wet or dry and then switching to some 1200 grit on a hard flat surface working the seat in a circular motion. The 1200 also works well to shine up the valves if they have some deposit that don't wont to come off. If it fails to compress like you want after replacing those valves at least you know they are good then I would change the high pressure seals by just removing the four bottom screws and removing the upper cylinder as one piece. You can also turn the fan to get the piston as high as possible to make it easier to remove and install the seals. If you decide to go with the aliexpress split rings keep using the thin springy spacer but use a pair of needle nose to hold the gap in the rings together and then slowly and carefully work the cylinder back over each seal. You'll notice how much tighter it is going on.
jking
jking
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Jordan G (Pyramyd Air)
Jan 24, 15:35 EST
I just ran out of the my spares I have here that I use. we are expecting parts to come in about a week or so.
Pyramyd Air
Got this from Jordan yesterday- so will order these (original factory) & also try some from Aliexpress.Will probably put back together with just new valves & see if I get good pressure- just hate to do it twice LOL.
Jan 24, 15:35 EST
I just ran out of the my spares I have here that I use. we are expecting parts to come in about a week or so.
Pyramyd Air
Got this from Jordan yesterday- so will order these (original factory) & also try some from Aliexpress.Will probably put back together with just new valves & see if I get good pressure- just hate to do it twice LOL.
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Well at least your a trained professional like me now haha. I'm getting good at pulling it apart, about a 15 turnaround time to do the rings now. PM sent your way.
Jimmy
Jimmy
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Now I'm REALLY scratching my head- replaced both valve plates & put back together to check while waiting on new rings & now I have ZERO pressure ! WTF! Even with one broken plate & 1 carboned up, I was getting 1500 on line pressure.Got to be major leak somewhere so will tear apart & replace all seals. Any other thoughts?
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I think you have installed the reed valve plates in the wrong orientation. I have made this mistake once on my Yong Heng.
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Airgunfans-Thanks for the clue & based on the tiny Chinese schematic(1st page of this)-the bigger one(bottom) is facing inward- & the top one outward- one is bigger(bottom) so no other way to install- will also do the soapy water test to check seals.
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That would be awesome, Jimmy- Also waiting on others from China, but that will be awhile- thanks again for all your help.
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