Yong Heng Clone with busted Piston

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csexton

csexton

Member
Jul 21, 2017
55
2
NC, United States
My Yong Heng clone has a busted piston. I need to replace the piston and high pressure stem and ring. My clone is somewhat different on the high pressure piston. Will the attached piston and high side work or should I replace the whole head assembly. I a little worried the air tubing will not line up exactly like the old head. See photos. Any suggestions?
Charlie 
1526749695_1633219825b0059ffc5e170.50981299_SmartSelect_20180519-101845_AliExpress.jpg
1526749715_16189270265b005a1319d798.08415878_SmartSelect_20180519-103554_AliExpress.jpg

Current setup
1526750040_18337384895b005b58ee18c6.11958231_SmartSelect_20180519-131234_Gallery.jpg
1526750060_12628177695b005b6c0a5887.67640492_SmartSelect_20180519-131255_Gallery.jpg
See the broken piston and different high side ring than replacement. 

Original 
1526750143_3522382035b005bbf3cdd50.24242154_SmartSelect_20180519-103711_Gallery.jpg
 
Replace the whole top end. The three-ring pistons have slightly different dimensions than the four ring ones. The only way that you can be sure that everything matches. is by replacing the whole assembly. The one in your photo is only $58 so it's not going to break the bank. You may be able to use your original plumbing or a hybrid of the two. If you can't make the plumbing work, make sure the new piston and rod have exactly the same tolerances as the old one or it may toss a leg out of bed.
 
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