I read some where that the excessive wear that occurs when you start an
engine is not due to a lack of lubrication. The article claimed the real
problem is that a stone cold engine makes water instead of water vapor.
(Burning a hydrocarbons always produces some H2O.) Some owner's manuals
(including my MG's) seem to support this opinion.
Here's a quote from my MGB owner's manual:
"Warming up: Research has proved that the practice of warming up an engine
by allowing it to idle slowly is definitely harmful. The correct procedure
is to let the engine run fairly fast, approximately 1,000 r.p.m., so that it
attains its correct working temperature as quickly as possible. Allowing the
engine to work slowly in a cold state leads to excessive cylinder wear, and
far less damage is done by driving the car straight on to the road from cold
than by letting the engine idle slowly in the garage."
Has anyone else hear this cold engine / water theory?
I know a few people who religiously wait for their engines to warm up
idling, especially in the winter. Sounds like they may be doing just the
opposite of what's good for the engine.
Bob Donahue (Still stuck in the '50s)
Email - bobmgtd@insightbb.com
52 MGTD - NEMGTR #11470
71 MGB - NAMGBR #7-3336
.
----- Original Message -----
From: <WSpohn4@aol.com>
To: <mgs@autox.team.net>
Sent: Thursday, June 13, 2002 9:12 AM
Subject: Re: Dry Sump
> In a message dated 6/13/02 6:46:20 AM Pacific Daylight Time,
> owner-mgs-digest@autox.team.net writes:
>
>
> > The one thing the article does not mention is that with a dry sump
system,
> > as soon as the ignition is turned on your oil system is primed and
> > pressurized. Since a great deal of engine wear happens over time from
the
> > momentary lack of pressurized lubrication on start up, this is one of
the
> > greatest benefits a dry sump lubrication system can offer you.
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