I also just stuck some 5/8" heater hose on mine and routed it down the side of the engine. Forgot all about it until I saw this thread! When I got the truck it had been pouring water for 20 years all over the back of the engine, although honestly I'm not sure it really hurt anything in the end. But now I have a distributor back there so... it's a little more important if I get it caught outside in a rainstorm.
But now that I remember that, I should have a look as it is probably deteriorated inside the cowl!!
