Packard Forum Index » Pre-War (1899-1942)

I am curious to know what the torque spec should be for the 326 main bearing cap nuts....and would the rod bearing cap nutss be the same?
As you can see, Packard was not very specific.

"Tighten all nuts and fit new cotter pins."

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  326 Main bearing info.jpg (89.02 KB)

I don't have an answer for you. But one of the many things to take into consideration when developing a torque value recommendation for fasteners is the thread size (diameter and threads/inch). What size are they? And do your rods and mains have the same size fasteners? Rods are typically smaller in diameter.