----------
> From:
> To: triumphs@autox.team.net
> Subject: Re: oil pressure / starting a car
> Date: Thursday, February 19, 1998 8:01 PM
>
> How's about we all head on over to the Triumph Maintenance Handbook at
the
> VTR site. There we will find three excellent articles on the slippery
> stuff(oil).
> 1) Lubricants Notes from Redline
> 2) More Than You Ever Wanted to Know About Motor Oil
> 3) Oil Additives - Snake Oil
> Once these three excellent articles are digested by all, then this thread
> should continue.
>
> So, off we go to http://www.vtr.org/maintain
>
> Larry(Spitman)
>
> ps: most turbo's die because the oil is coked on shutdown if the unit is
> not allowed to cool sufficiently before the oil flow is stopped.
> pps: there was a company about 10 years ago that made an electric (12V)
pre
> and post oiler that could be retrofit to any engine. Anyone remember who
&
> if they still market this device??
>
>
>
> ----------
> > From: Joe Curry <spitlist@gte.net>
> > To: Romano Kroemer <romano@bellatrix.pcl.ox.ac.uk>
> > Cc: Atwell Haines <carbuff@scooter.net>; triumphs@autox.team.net
> > Subject: Re: oil pressure / starting a car
> > Date: Thursday, February 19, 1998 10:28 AM
> >
> > Romano,
> > Your hypothesis appears to be correct. That is why all the new items
> > are showing up on the shelves of the auto parts stores. Things like
> > "Slick 50", etc.
> >
> > I had a '79 Buick Riviera that has an Air Research turbocharger mounted
> > on a V6. Since the turbo ws oiled by engine oil, it was dry after
> > sitting all night. My wife had a habit of getting in, starting up and
> > taking off. Needless to say, I had to rebuild the turbo after 30,000
> > miles. The guy at the shop who rebuilt it said they make a gravity
> > oiler that cures the problem. It pumps oil into a reservoir above the
> > turbo unit and after the engine is turned off, the oil drips down into
> > the turbo and keeps the bearings wet. Maybe we need something like
that
> > for LBC engines that sit idle for long periods.
> >
> > Romano Kroemer wrote:
> > >
> > > Atwell-
> > >
> > > >
> > > >At 11:12 AM 2/17/98 +0000, Romano Kroemer wrote:
> > > >>Listers,
> > > >>
> > > >>after the recent threads about oil-filters with drain-back valves
and
> > > >> starting cars after long storage, I thought I would share my
> car-starting
> > > >> method with this list:
> > > >
> > > ><snip>
> > > >
> > > >My understanding of the wear incurred at start-up is thus:
> > > >
> > > >It is the strain of engine compression on the pistons, pressing on
the
> > > >cylinder walls and crankshaft, that are bad. Cycling the engine
> without
> > > >starting it does nothing to reduce this wear.
> > > >
> > >
> > > .. but this compression is always there, also when the engine is
> running.
> > >
> > > My understanding of wear at start-up is that there is no oil where it
> should
> > > be for some seconds, while the engine is revving already at 1000+
> rpm. Then
> > > the oil-pump has done enough work to distribute the oil and the
> oil-pressure
> > > has come up.
> > >
> > > So, if I cycle/revv the engine at a lower rpm (with the starter motor
> only),
> > > until I have distributed the oil/built up oil-pressure, I should
> induce
> > > less wear.
> > >
> > > Am I missing something here? Enlightment please!
> > >
> > > - Romano
> > >
> > > >This is the rationalization behind the practice of some folks who,
> before
> > > >starting an engine that has been sitting a long time, REMOVE THE
SPARK
> > > >PLUGS and crank the starter long enough to generate oil pressure.
> > > >
> > > >"Pre-oilers" that use small electric pumps provide oil pressure
> independant
> > > >of the engine. Some use a pressure system instead of a pump.
> Drawback:
> > > >these pre-oilers can cost several hundred dollars.
> > > >
> > > >Speed shops such as Jegs or Summit (in the USA) can provide exact
> info.
> > > >
> > > >my .02 ...
> > > >
> > > >BTW, I have also heard that the oil film inside an engine will
protect
> the
> > > >cylinders for two weeks to a month. Can anyone verify this?
> > > >
> > > >
> > > >
> > > >Atwell Haines
> > > >'79 Spitfire FM96062 UO
> > > >
> > > >"47.5% of all statistics are made up on the spot."
> > > >
> > >
> > > --
> > >
>
============================================================================
>
> ===
> > > Dr. Romano T. Kroemer
> > > Phys. & Theoret. Chem. Lab.
> > > University of Oxford
> > > South Parks Rd. | Tel: ++44-1865-275475
> > > Oxford OX1 3QZ | Fax: ++44-1865-275410
> > > England, U.K. | Email:
> romano@bellatrix.pcl.ox.ac.uk
> > >
>
============================================================================
>
> ===
> >
> > --
> > "Thanks to the Interstate Highway System, it is now possible
> > to travel across the country coast to coast without seeing
> > anything." -- Charles Kuralt
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