The Ford Barn

JSeery · 12-20-2020, 11:41 AM

OK guys, what are we confusing here??? It is all the same port! There is not a return port unless further modifications are made to the block, it is three holes tapped into the same passage.

In the case of the original Canadian oil filter/oil cooler setup a special fitting was inserted into the vertical passageway to block the flow through the horizonal passage. THEN the third opening was used as a return port to the oil system. If the fitting is removed, then all three ports are connected and there is no "return" port.

Same goes with the so called "95%" external filter modification, a grub is inserted into the horizonal passage way again blocking it and THEN the third port is used as a "return" port.

Without one of these modifications all three ports are connected, one is the same as the other. So referring to the third port as a "return" port seems very confusing to me, any of the three ports could be used for a by-pass filter connection or an oil pressure sensor connection or just plugged if not need.

The arrangement shown in post #7 will work just fine and looks like a slick setup to me.

12-20-2020, 11:41 AM	#11
JSeery Member Emeritus Join Date: Nov 2012 Location: Wichita KS Posts: 16,132	Re: C59A Oil filtration circuit question OK guys, what are we confusing here??? It is all the same port! There is not a return port unless further modifications are made to the block, it is three holes tapped into the same passage. In the case of the original Canadian oil filter/oil cooler setup a special fitting was inserted into the vertical passageway to block the flow through the horizonal passage. THEN the third opening was used as a return port to the oil system. If the fitting is removed, then all three ports are connected and there is no "return" port. Same goes with the so called "95%" external filter modification, a grub is inserted into the horizonal passage way again blocking it and THEN the third port is used as a "return" port. Without one of these modifications all three ports are connected, one is the same as the other. So referring to the third port as a "return" port seems very confusing to me, any of the three ports could be used for a by-pass filter connection or an oil pressure sensor connection or just plugged if not need. The arrangement shown in post #7 will work just fine and looks like a slick setup to me.