Yong Heng rebuild kit

[Poke-E]

Does anyone have a link where I can order a rebuild kit for my yong hing compressor? I would like to rebuild it as a backup.

 

[Firewalker]

Depending how deep you want to go, I keep the 1st & 2nd stage piston and valve on hand for mine just in case.

https://www.aliexpress.us/item/3256807329553444.html?spm=a2g0n.productlist.0.0.5e7b3f54ZPOH2a&browser_id=4a54884156d044e497e241a4a7a84122&aff_platform=msite&m_page_id=cazhbctkecatjwyc19276227dba15fb2e7871c4f36&gclid=&pdp_npi=4%40dis%21USD%2130.57%2121.40%21%21%2130.57%2121.40%21%402101c5a717285588438711548ec2fc%2112000041095604395%21sea%21US%21169111542%21X&algo_pvid=2ee98003-f433-49a3-8002-959b47d338c2

 

[Poke-E]

It's actually still working but is leaking pretty bad!! Should I just rebuild the whole thing? It's leaking around the tubing I believe.

 

[Gerry52]

If you mean the metal tubing, why not just order new tubing & dowty seals (bonded washers)? OR, replace dowty seals 1st & see if leak stops!
My 1st leak on my YH was due to a bad dowty seal on top of HP cylinder. Fixed in 5 minutes.

 

[Poke-E]

Hmmmm... Sounds like a good idea. This is actually the first time I've ever looked into repairing it... I actually ordered a CS4 but wanted to have the Yong Hing as a backup. I guess the question I should have posed was what everyone thinks is wrong with it. I believe I could just replace all of these seals that came with the machine to see if that works...

 

[Scotty1]

Like Gerry, mine leaked from a dowty seal as well. A little soapy water will tell you where it’s leaking. The seals are in your spares kit.

 

[Gerry52]

Like Scotty said, track down where you're leaking from first (not YOU, your compressor ). Gotta find out for sure.. Have you tried retightening all fittings yet. Spray bottle with water & a few drops of dish soap works wonders. That top dowty seal leaking has been fairly common.

 

[Poke-E]

I actually did try tightening down the fittings to no avail. Where exactly is the dowty seal?

 

[bckyrdsnpr52]

It's actually still working but is leaking pretty bad!! Should I just rebuild the whole thing? It's leaking around the tubing I believe.

Check around the gauge, on mine that's the first thing to fail

 

[Poke-E]

10-4, going to try to find some time tomorrow to mess with it...

 

[Gerry52]

I actually did try tightening down the fittings to no avail. Where exactly is the dowty seal?

Right at the top of High Pressure cylinder where metal tubing connects.

 

[Poke-E]

Yep, I actually did see it bubbling from that exact spot!!! Thanks...

 

[jjmetheny]

Right at the top of High Pressure cylinder where metal tubing connects.View attachment 503475

I've had leaks from the same place that randomly developed over time. I occasionally check all my fittings now between the heat and vibration things loosen.