[Prerunner1982]

If i am not mistaken, doesnt it say to use GUNK on a HOT engine? that helps break up the grease. I dont cover my dist. i just dont lay on it with the spray. (also you can use wd-40 in your dist. to displace the water). I too have heard about no using water on a hot block, i can understand on glass and such, but like N2TRUX said, what if i am driving down the road.. which i have done quite a bit with not problem. maybe if the heads were aluminum or such. But like almost everything else... everyone has thier own way of doing it... so to each his own.