Yong Heng first and second stage piston (Need some suggestions)

[Airgun enthusiasts]

Recently, my Yong Heng wasn't filling pass 3500psi, so I decided to rip open the unit. I found out the brass between the seals were cracked on the first stage piston.

I had ordered the whole first and second stage piston for the Yong Heng with the gaskets, and found out the item wouldn't fit my Yong Heng. 

I have the simple version of the Yong Heng. Could anyone provide a link to the whole first and second stage pistons with gaskets for me? I would hate to order the wrong part again the second time around. Thanks in advance.

 

[Eaglebeak]

Sounds like you may have ordered the 4 ring Tuxing version by mistake. I got mine here.https://www.aliexpress.com/item/32952512274.html?spm=a2g0o.order_list.0.0.21ef18026Yc0Nd and the gaskets here. https://www.aliexpress.com/item/32980765403.html?spm=a2g0o.order_list.0.0.21ef18026Yc0Nd It's possible to buy just the top and rings of the pencil piston separately but it isn't much cheaper than getting the whole piston and rod assembly. https://www.aliexpress.com/item/1005001842191188.html?spm=a2g0o.detail.1000014.16.31547ca8JYpeHJ&gps-id=pcDetailBottomMoreOtherSeller&scm=1007.40050.274735.0&scm_id=1007.40050.274735.0&scm-url=1007.40050.274735.0&pvid=4602af93-d057-40d3-bc1d-87f92ae306d6&_t=gps-idcDetailBottomMoreOtherSeller,scm-url:1007.40050.274735.0,pvid:4602af93-d057-40d3-bc1d-87f92ae306d6,tpp_buckets:668%232846%238112%231997&pdp_ext_f=%257B%2522sku_id%2522%253A%252212000017819070250%2522%252C%2522sceneId%2522%253A%252230050%2522%257D&pdp_pi=-1%253B5.52%253B-1%253B-1%2540salePrice%253BAUD%253Brecommend-recommend

 

[Airgun enthusiasts]

If I had ordered the 4 ring Tuxing by mistake then vendor had sent me the wrong part. The ad specifically said it was for a Yong Heng. Perhaps, the mistake wasn't me. Thanks for that tip @Eaglebeak.

 

[Scotty1]

I’d suggest you order from the Yong Heng store on Ali express. There are many vendors on Ali…

 

[biohazardman]

Yong Heng second stage piston. I usually cracks because locktight was not applied when it was installed.

Upper piston assembly is likely all you need.

https://www.aliexpress.com/item/1005001842191188.html

Complete piston assembly

https://www.aliexpress.com/item/1005001431511355.html



The Simple version does not have the water separator on it. So, water and oil get pumped throughout your compressor and will eventually cause problems .

Cyclone water separator. Helps remove water and oil from your air. Your compressor needs this.

https://www.aliexpress.com/item/32906233045.html

Air cooling tubes you will need two of these for the water separator.

https://www.aliexpress.com/item/4000807691142.html

 Yong Heng post link

https://www.airgunnation.com/topic/a-dedicated-yong-heng-subforum/#post-1127767

 

[WI_Hedgehog]

@biohazardman is correct. Water doesn't compress, and also reduces lubrication, therefore reaks havoc on the 2nd stage.

The cyclone water separator also helps cool the air which reduces heat/ware on the 2nd stage.

I definitely suggest having a cyclone water separator.

 

[Airgun enthusiasts]

@biohazardman, I found out after I had ordered the simple version Yong Heng that I needed an oil and water separator. I have been using that oil and water separator in tandem with the Yong Heng for a while now. 

I think it would be a great idea just to convert my simple version Yong Heng with the cyclone water separator just for precaution.