Don,
So my Ford factory shop manual is wrong then?
>>>What I have heard is the smaller the filter the "sooner" the bypass
>>>becomes activated. Even largish (PH8A) filters have their bypass
>>>open at higher RPM (and viscocity) but smaller filters bypass sooner
>>>and you end up spending more time without the filter in the circuit.
>
>Ford engines utilize "full-flow" lubrication. Which means all oil must
>pass through the filter before it gets into the engine. The pressure
>relief valve dumps excess oil back to the pan before it reaches the
>filter. As for the size of the filter - though it may not have the
>debris-holding capacity of a PH8a, FL1, etc., it shouldn't be a problem
>with oil flow.
>
>By comparison, my 86' Jeep with a 360 V8 uses a Fram 3675 - it's about
>the smallest filter I've ever seen. I too had concerns about its'
>ability to perform, but, I figure the manufacturer knew what they were
>doing and, with over 140,000 miles, the motor is still running strong.
>Just my 2 cents...
>
>Don Daves <dondaves@ix.netcom.com>
>Santa Cruz, CA.
>65 Tiger (his)
>64 1/2 Mustang conv (hers)
>
>
>
>
>
Frank Marrone MK I Tiger B9471116
marrone@wco.com 1966 LTD
Series I Alpine (2.3L powered by Ford)
Yamaha Seca 900
|