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Karl Wolf · 11-18-2011, 12:43 PM

I have redone a few rods... If one measures the amount of distorsion in the big end, on a torqued rod- say it's .004- a real common wear on a flathead rod- You can cut the cap say .005 or .006... This can leave you with a minimal amout of material to remove to get to size, and you lose almost no length in the rod....
Also, note that I have found that the rods wear to an egg shape- up and down being the long way... And if you have a Tobin Arp rod boring machine center to center can come out perfect... If you just do the small end on a Sunnen... I wouldn't worry about the rod length...
Come on-it's a flathead...
Karl

11-18-2011, 12:43 PM	#13
Karl Wolf Senior Member Join Date: May 2010 Location: Mill Valley,Ca. Posts: 1,555	Re: Con rod pin bushing I have redone a few rods... If one measures the amount of distorsion in the big end, on a torqued rod- say it's .004- a real common wear on a flathead rod- You can cut the cap say .005 or .006... This can leave you with a minimal amout of material to remove to get to size, and you lose almost no length in the rod.... Also, note that I have found that the rods wear to an egg shape- up and down being the long way... And if you have a Tobin Arp rod boring machine center to center can come out perfect... If you just do the small end on a Sunnen... I wouldn't worry about the rod length... Come on-it's a flathead... Karl Last edited by Karl Wolf; 11-18-2011 at 02:51 PM.