The sunroof was bad enough, inexperianced that I am, it took me 2 days to get the sunroof right (diffuculty was compounded by the fact that the origional sunroof came apart just after I got it out, and I reassembled it incorrectly) However the sunroof works perfectly now so I count it as success after a fashion.
However..... the oil return line from the turbo was something to be experianced once.... I have been putting this off on my girls 740 for a year because I thought the hassel was hardly outweighed the need to check the oil every 800 miles or so. This changed when I finally put synthetic oil in it, I will be darned if I will let that oil leak out! So I went about it starting about 4 pm one day, got it off allright but had the darndest time with the fibre gasket on the turbo side... ran out of light.... Sorry dear, you gotta take my 240 to work...
So yesterday I went at it again and finished it, no oil leaks!!!! Now that is victory. A word to the wise If you have to do this.... spray adhesive on the top gasket!! Works a charm!!!! (I owe the tip to my brother who is a Kenworth mechanic and said he uses it all the time building trannys)

Oops, should have put this in the 740 forum, sorry!

Oops, should have put this in the 740 forum, sorry!

No problem. I just changed the same seal & gasket on a friends '89 740 Turbo vehicle. However, it was much easier since the engine was out of the car and I had easy access to it. If only it the engines one these cars were easy enough to remove to merit it for little jobs like this. -The engine was already out for a head gasket and misc other stuff, so I decided to renew all the seals and gaskets while I had easy access to them.

Another friend of mine bought a 744 turbo and the lower oil return seal had been covered in JB-Weld by the previous owner who was a bit frustrated with a leaking seal. While his lower oil seal doesn't leak, his sunroof does. -and that's on the agenda for this fall.

God bless,
Fitz Fitzgerald.
--
'87 Blue 240 Wagon, 248k miles.

I'm glad to have read about this in previous posts. While reassembling after replacing a cracked manifold, I took extra care with that square o-ring on the block side. Used mirrors and lots of light to make sure the hole was spotless, a film of red RTV to keep it from sticking, and, after the flange was bolted solidly, I filled the remaining gap at the exterior with the RTV to keep the dirt out. All that and now the rear main seal leaks instead!
--
Art Benstein near Baltimore