Lynn,
You sent that drawing some time ago during a previous discussion on cooling. My system is set up very similar, but I wonder what the effects of the differences might be.
I don’t have a swirl pot, but the cap on the radiator is like in your drawing where it doesn’t seal for pressure. Another difference is that my radiator is a double pass, so the radiator cap is after the first pass of the radiator. You don’t show where you come in with the air bleed from the top of the front iron. Mine comes in just under the radiator cap. This allows the air to move into the make up bottle quickly. But the down side is that whatever coolant comes thru that ¼ inch line bypasses the first pass of the radiator and only goes thru the last pass. However, I think that this coolant has only made one pass thru the engine as well.
( I have no clue how the coolant flows thru the block, but I think it goes down one side and back up the other side to the water pump???) I would like someone to set me straight on this coolant flow thru the engine. There are two outlets, this one and the heater supply that come off the front iron. They must somehow only get contact with half the engine since the water pump is on the other end of the engine. ???
Bill B
The air from the engine leaves the top of the swirl pot (in my case) and enters the stock RX-2 make up bottle at the bottom center. I have no other lines to the make up bottle other than the line from the neck above the pressure seal that runs to the catch tank required by rules.
The dynamic fluid flow does not require exact top collection of air as would a static system. Air is swept along with the coolant and tends to collect only in still or very low flow areas like the top of the radiator tanks. Thus the swirl pot, that removes air from a high energy flow.
My radiator is a double pass to get more energetic flow and have both inlet and outlet on the same end.
Coolant flows back along the sparkplug side to the rear iron, across the rear iron and forward from rear to front along the intake and exhaust side, then out through the water pump housing.
Lynn E. Hanover
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