The cam bushings/drive gear (9 of those), wrist pins, rocker arm bushings (8 of those) and maybe the valve guides, I believe are bronze. Not sure about the crankshaft or oil pump.
I am considering changing the oil this fall and maybe using 10w-40 for my winter rides. That would be another short interval to help clear out the copper wear, maybe. Harley recommends a 15w-40 or 10w-40 for ambient temps below 40 F.
I am considering changing the oil this fall and maybe using 10w-40 for my winter rides. That would be another short interval to help clear out the copper wear, maybe. Harley recommends a 15w-40 or 10w-40 for ambient temps below 40 F.
