Engine rebuild gone west

A melancholy moment for sure😳, they overlooked this on original rebuild hi when it had thrown a valve on cylinder 1 they replaced the piston and head and had low oil pressure on start up they replaced the oil pumps and it still had the same problem, I open it up and walla, I was hoping they'd missed an o ring BUT its like they forgot to put the piston rings on..... I will be replacing the big end shells sleeves and new rings that should seal the deal
 

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A melancholy moment for sure😳, they overlooked this on original rebuild hi when it had thrown a valve on cylinder 1 they replaced the piston and head and had low oil pressure on start up they replaced the oil pumps and it still had the same problem, I open it up and walla, I was hoping they'd missed an o ring BUT its like they forgot to put the piston rings on..... I will be replacing the big end shells sleeves and new rings that should seal the deal
How can anybody forget to put piston ring on, amazing.
 
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