I have a K321 in the machine shop as we speak. Having bored out 0.010", valves done, etc. Pretty basic stuff there. but I have an issue. The crank is already 0.013" under, needs to go 0.020" to clean it up and make it usable. The machinist has suggested taking an old rod (of which I have a couple here) he can bore it out and put inserts into it all the way to 0.040-under.
I have definitely heard of this (largely among the puller guys) and am interested since the only "20-under" rods I can find are aftermarket offshore sourced parts. I honestly do not have much faith in aftermarket offshore parts, and even though it costs more, try to stay with OEM internals.
All that said, anyone else here ever done that to a Kohler rod? All I need is a part number for the bearing. I have heard that the bearing they used for these, was standard issue in an old Continental engine (which I also know that you do not see in use much anymore, these days)
I have definitely heard of this (largely among the puller guys) and am interested since the only "20-under" rods I can find are aftermarket offshore sourced parts. I honestly do not have much faith in aftermarket offshore parts, and even though it costs more, try to stay with OEM internals.
All that said, anyone else here ever done that to a Kohler rod? All I need is a part number for the bearing. I have heard that the bearing they used for these, was standard issue in an old Continental engine (which I also know that you do not see in use much anymore, these days)