Re: '54 oil filtration question...

Posted by HH56 On 2012/9/15 20:56:00

On the center tube will be a small hole (IIRC, about 1/3 way down from top) or, in some of the early canister filters, several holes.

The earlier Packard filters had an orifice in the feed tube, came in the bottom, thru the center tube, thru filter, and out the side and in some engines fed the lifter gallery directly. That was changed to route the return into the pan and the pigtail was installed to feed the lifters.

Later filters reversed the flow with oil coming in the side, thru filter, and then thru the center tube with the small hole acting as the flow control and into the pan.

Being partial flow, not entirely sure how much goes thru but safe to say with the small hole (1/16" about), not a lot.