home *** CD-ROM | disk | FTP | other *** search
- Newsgroups: rec.autos.tech
- Path: sparky!uunet!cs.utexas.edu!asuvax!ennews!gtephx!rakoczynskij
- From: rakoczynskij@gtephx.UUCP (Jurek Rakoczynski)
- Subject: Re: Pre-luber summary & Oil Changes
- Message-ID: <1992Sep1.164509.8229@gtephx.UUCP>
- Organization: AG Communication Systems, Phoenix, Arizona
- References: <15200042@hpspdla.spd.HP.COM>
- Date: Tue, 1 Sep 1992 16:45:09 GMT
- Lines: 48
-
-
- In article <15200042@hpspdla.spd.HP.COM>, paulw@hpspdla.spd.HP.COM (Paul Welch) writes:
- [summary and various other parts deleted]
- >
- > Some offered info about purchasing one of these pumps. Thanks, but
- > for $560 I'll have to come up with another idea. A private response
- > suggested an aux. pressure vessel that is filled with pressurized
- > oil while the motor runs. It holds this pressure until the motor is
- > re-started; thus no pump and pump motor are required. Actually
- > sounds like a viable idea to me.
-
- Moroso and other aftermarket companies sell this "pressure vessel"
- that you tee into an oil feed line. It used to even out pressure
- changes or oil feed loss during hard cornering. Some aftermarket
- companies expand this idea to add a small orfice to slowly bled oil
- after engine shutdown to "cool the turbo". Others add a valve in the
- oil line (either manual or electric, with various control options) to
- store idle oil pressure until you need it a startup.
-
- > that you let the engine idle for 20 to 30 seconds after parking the
- > car before you shut the engine off, to allow the turbo to cool.
- > I'd be interested to know if this is a theory or if they have
- > ACTUAL DATA that shows some benefit here (I'm skeptical as to
- > how well one could cool a turbo with engine oil that is already plenty
- > hot). But, if you could circulate that oil for more like 5 minutes,
- > especially if your not continuing to add heat with the engine running,
- > now it starts to make sense. The benefit of having this system in
-
- The 20-30 sec is to have the lower exhaust temp at idle cool the
- turbo, not just the oil cool the bearings.
-
- > is $560. Obviously the latter choice also includes a small motor,
- > switches, etc., but what are my choices for oil pumps if I want to
- > try to build my own pre-oiler? I need something that won't leak,
- > and I would guess that when they build the $25 version that sits in
- > the oil bath, they don't take the time to seal it perfectly.
- > Any pump and motor suggestions ?????
-
- Only some minimum guidelines (IMHO) to follow:
- Oil flow = 1 gal/min
- Oil pressure = 10 psi
-
- This should be all you need for a preluber.
- --
- Jurek Rakoczynski, AG Communication Systems, POB 52179, Phoenix, AZ. 85072
- UUCP: ...!{ncar!noao!enuucp | att}!gtephx!rakoczynskij Voice: +1 602 581 4867
- Inet: gtephx!rakoczynskij@enuucp.eas.asu.edu Fax: +1 602 582 7111
- Inet: /DD.UN=J.RAKOCZYNSKI/O=GTE/PRMD=GTEMAIL/ADMD=TELEMAIL/C=US/@sprint.com
-