Originally Posted by power house
I'm having the same problem with the Dorman kit #47065 elbows leaking on the last 4 cars. It most be the o-rings.
My $ is on the o rings, I know mine were in bad shape when I changed them, and they had only been on there a week if that, they almost looked like heat had melted them a little, but my engine never got above 185F
I put new Fel-PRO o rings on in place of those Dorman o rings, and I had no more leaking, forgot to mention my leak was small, nonetheless it was a leak.
I'm not sure why an aluminum elbow was never cast in place of the one we were stuck with, I'd much rather have aluminum given the fact over time the coolant can plasticize the elbow a bit, and heat effects it also, in some cases it will fall apart when removing it, mine did the first time I replaced it, I did get 133k miles out of it though, till I was forced to remove it when doing my LIM gaskets, so I guess it is ok as long as you do not try to remove it.