Re: Turbo oil drain[700/90]

BrickBoard Archives

The files contained in this listing have been automatically archived from the active forums. Because the vast majority of posts are now in one place, this archive is considered legacy. You should use the SEARCH feature OR choose your topic and select date tabs within the forum you choose.

Re: Turbo oil drain[700/90] posted by Don Foster on
Tuesday, 10 November 1998, at 10:21 p.m.

Dave --

This is a puzzlement.

Three thoughts:

First, the O-ring may have gotten cut during installation (I've done that). Even a nick can let oil seep out.
Second, the O-ring might have peeled up over the ridge in the pipe (I've done that, too).
Lastly, it might not be the correct O-ring -- too thin, so not squeezing into the block (no, I haven't done that one yet -- at least not on a Volvo).

That tube is only a gravity-fed drain -- there's really no oil pressure there, so there's almost no driving force to push oil out. O-rings get there sealing properties from the "squeeze" against opposing surfaces. In this case, those surfaces are the tube and ID of the hole in the block. You shouldn't need to push it down solid to achieve a seal. Even so, you might get a few thousandths extra insertion, but I'd guess the manifold and turbo is already down all the way. After all, it weighs a lot, so would have sat low during installation.

Does your engine have very high crankcase pressure? --

Brickboard.com is not affiliated with nor sponsored by AB Volvo, Volvo Car Corporation, Volvo Cars of North America, Inc. or Ford Motor Company. Brickboard.com is a Volvo owner/enthusiast site, similar to a club, and does not intend to pose as an official Volvo site. The official Volvo site can be found here.