Originally posted by pentoman
I think that is a most insane idea..
Are those people beneficiaries on your life insurance policy?
In the first place, your car doesn't have a radiator cap, it has a pressurized reservoir cap. There is no discernable flow through the reservoir.
Another thing to check is the thermostatic clutch on the belt driven fan. I don't know how to check it other than to listen for it to engage when it should.