AH64ID

I recently installed a coolant filter, and based on what I thought, and was told, at the time I plumbed it the way I did. I have the "pressure" coming from the head, and the "return" going to the block. I also recently realized that the flow of coolant is from the block, thru the head, and back to the pump, or radiator... So I am wondering if my filter is filtering backwords?

So can anyone help confirm or deny this? Is the pressure in the head or the block greater?

Thanks

AH64ID

CamperAndy

As the picture shows the pressure is in both the block and head but there will not be enough pressure differential to flow through a filter plumbed between those two points.

I would plumb it as follows.

Take the pressure point off the back of the head and tie the return to the heater return line.

The illustration you posted does not show it but the heater return line goes back to the pump suction.

AH64ID

I was getting decent flow since the filter got hot.. just not sure which way it flowed.. .I would think more pressure by the pump, but the temp can be quite different so more pressure in the head?

I have decided just to re-plumb it like you mentioned.