From: John De Armond
Newsgroups: rec.outdoors.rv-travel
Subject: Re: Synthetic oil;
Date: Fri, 10 Sep 2004 02:34:08 -0400
Message-ID: <gai2k05lrcd6fh86itk030jl3dhlvuf4ja@4ax.com>

On Thu, 09 Sep 2004 21:29:10 -0400, Sandy A. Nicolaysen <sandynic@erols.com>
wrote:


>A pre-luber is nothing more than an oil pump driven by and electric
>motor.  The idea of a pre-luber is to pressurize the oil system before
>turning the motor for starting.  Normally this is not an issue as
>vehicles used daily retain enough oil film overnight to lubricate
>during the starting process, but in some applications, a vehicle may
>sit idle for extended periods of time allowing the oil from cylinder
>walls, bearings, etc drain back to the pan where is does little good
>until the engine is started and the wear has already occurred.

There is another type of pre-luber that is simpler and not as expensive.  This
type consists of an accumulator, a check valve and a solenoid valve.  The
thing is plumbed into the oil system, normally through the oil pressure sender
boss.  During engine operation oil is pumped into the accumulator where it is
stored under pressure.  The check valve catches and holds the highest pressure
the system generated.  Before cranking the next time a switch is pressed,
actuating the solenoid valve that bypasses the check valve, letting the
pressurized oil flow into the engine.

I don't have a brand name handy but they're available through various racing
parts dealers.

John