fliptop drain plugs

[ptimmerm@mashtun.JPL.NASA.GOV]

>I was dead set on getting one of these from Imparts, until I told a friend 
>how clever I thought I was for doing so.  He said, "What if a rock kicks 
>up and flips the valve?  It would drain all your oil out onto the 
>ground."
>
>He talked me out of it.  How hard would it be for this pessimistic thing 
>to happen?  Does it have pretty sturdy resistance to opening?
>
>Ken

I had one on a car or two, and there is NO problem with them flipping
open, in fact they are a bit sticky to open, with the strong rtainer
spring used.  Only problem I had was bashing one on a curbstone, then
it really wouldn't open.  But it still never leaked.  Your friend
was wrong.

paultimmerman