Wrist pin lubrication?
#1
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This is to satiate my own curiosity more than anything, but how are the wrist pins (or grudgen pins, as the manual calls them) lubricated? I can't see any oil passages on the con rod or in the rebuild diagram but would be amazed if they didn't get any. Is it just splash from the sump? I'm doing a rebuild on a 4.0 and don't plan on removing the wrist pin (unless there is a very good reason to) as they are an interference fit and I don't have a good way of pressing them out.
#3
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I have not built a single engine that had direct pin lubrication. They have all been splash lubricated. I currently have a 351W, a 1300CC VW, and a 428 Cobra Jet. All that I hand built. Not one has a rod galley.
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Richard Gallant (02-13-2021)
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