Quote:
RogerDetroit wrote:
Not to be overly redundent, but there is a statement in the 1941 Packard Data Book, on page 101, that the One-Sixty (356) engine is equipped with a two stage oil filter and that it was an option for the One-Ten and One-Twenty.
Photo also shows the plumbing - see below:
Actually, the whole reason I went to the bother of showing and explaining the bypass plumbing was to counter that early photo. I don't know when Packard made the change (I'm too lazy to go through all the service bulletins to find out) but I am fairly certain that from
at least 1948 through the end of the straight 8's, Packard used the bypass method on all engines with hydraulic lifters. Truthfully, if you change your oil regularly and put as few miles on your car as I do on mine, the whole issue is non-consequential.
I have three 356 engines, one from 1948 and two from 1949. All three were factory plumbed as bypass.
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