Radiator fill question

[Bill G]

I recently purchased a very nice Brassworks radiator. My old radiator had no baffle in the filler neck, so I could plainly see where I wanted to fill the level with coolant. I would fill it to just a little over the tops of the tubes because if I filled it more than that, it would all blow out anyway. THat old radiator was falling apart and took many fills to keep it in water.



This is a '29 for what its worth.


The new radiator has a baffle that absolutely hides the top tank from being able to see how much is there. I am pretty sure I am OK. The car runs nice and cool, and nothing is getting spewed out. There is under three gallons and over 2-1/2 gallons in it. The key point is that it does run cool and I know that because I am running a temp gauge.


My question is how the devil do I check to see what my water level is, other than just wait for it to overheat if I am on a long trip? Any techniques for magically seeing down beyond the baffle? I am baffled.


-Baffled in Walla Walla