If the fittings really won't budge, your worse case bet is to use a dremel or similar and cut-off wheels to split the nut. If you are careful, you can avoid nicking the threads on the oil cooler.
I ended up having to split the nut in two places on an aluminum cooler in a 99. Cut the line off flush with the nut, then you can fully split the nut at the back; make a couple of passes so you can get a screwdriver in there to help wedge it open, then slit along the sides, cutting just deep enough to see the beginnings of the threads. The rest will break easily once you wedge open the split. -- John W Reames jream...@verizon.net Home: +14106646986 Mobile: +14437915905 On Apr 13, 2013, at 22:46, Allan Streib <str...@cs.indiana.edu> wrote: > Dan Penoff <d...@penoff.com> writes: > >> 3.) If time permits, apply a generous amount of penetrating fluid to >> the fittings at the oil cooler. There are dissimilar metals and tend >> to gall when removed, sometimes badly enough that the oil cooler >> requires replacement. > > I used the acetone and ATF recipe for this, and it worked well when I > replaced the lines on my W123. > > Also be sure you use a wrench on both sides of the fitting, so you don't > twist the fitting out of the cooler. > > Allan > -- > > > _______________________________________ > http://www.okiebenz.com > For new and used parts go to www.okiebenz.com > To search list archives http://www.okiebenz.com/archive/ > > To Unsubscribe or change delivery options go to: > http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com _______________________________________ http://www.okiebenz.com For new and used parts go to www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com