connecting rod and piston pin problems

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KJlibertyBR

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Jan 31, 2025
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I’m rebuilding the engine of my Jeep Liberty 3.7 V6. The issue is that here in Brazil, parts for this engine are extremely scarce, and when they are available, they’re prohibitively expensive.





Right now, I’m facing a problem with the piston pin fitment in the connecting rod – it’s worn and has become oval-shaped. Has anyone here ever installed a bushing in the small end of the connecting rod on a 3.7 V6 Cherokee? Does it work reliably?





Also, has anyone successfully used piston pins from a different engine as an alternative?





If anyone has the technical specifications for this engine, could you please share the exact measurements? Specifically, I’m looking for the piston pin diameter, the connecting rod small end inner diameter, and the correct clearance between them.





Thanks in advance!
 

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