Oh wow that's quite the story. Liquids can't be compressed eh? Well damn,
that's just re-writing the laws of physics right there. I guess oil doesn't
burn in the combustion chamber either. You learn something new every day.



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On Thu, 04 Jan 2007 18:52:42 -0500, SBlackfoot wrote:

While he's wrong about the oil "locking up" the engine, it is indeed true
that liquids can't be compressed. You can put pressure on a liquid, but
you can't compress it. There's a difference. That's the fundamental
principle of how hydraulic systems work...

Perhaps you should have paid more attention in that high school physics
class...

--
"Ubuntu" -- an African word, meaning "Slackware is too hard for me".

SBlackfoot <trypticon (AT) sympatico (DOT) obvious.ca> wrote in article
<459d8693$0$4815$88260bb3 (AT) free (DOT) teranews.com>...
As wrong as he is about everything else, Pascal's Law - and virtually
everything hydraulic - works on the very principal that liquids, in fact,
CANNOT be compressed.

They can be pressurized, but NOT compressed.

OTOH - You are correct in chiding him about oil burning off in the
combustion process.

In article <zmtnh.6$Ul4.1@trnddc05>, =?iso-2022-jp?q?Hachiroku_=1B$B%O%A%m%=2F=1B=28B?= wrote:

The oil sitting in the pan is not under pressure (under normal conditions
in most engines, I am sure if I didn't write this someone would find a
some engine made in east germany in 1961 that was in 45 cars that had the
oil in the pan pressurized and call me a dumbass for not considering it).
The oil in the passages is. The pump picks up the oil and it is pumped
through the system then returns to the pan. The oil pressure builds
against the resistance of pushing the oil through the small passages,
bearings, etc.

When an engine is over filled with oil, the oil pressure doesn't
increase, the crank dips into the oil in the pan splashing it around. The
oil get frothy with air and then these air bubbles are in the oil as the
pump picks it up and circulates it. Of course air doesn't do a good job
lubricating internal engine parts and the engine fails.

Hachiroku $B%O%A%m%/ wrote in article <zmtnh.6$Ul4.1@trnddc05>...
Your Honda "Service Mangler" is either full of it, or he doesn't know what
he's talking about.

Either way, I would find another place to have my car serviced and
repaired.

* wrote:

With a 3-quart overfill, I can picture some damage being done, including
blown seals (penguin/ice cream jokes notwithstanding).

Bill Putney
(To reply by e-mail, replace the last letter of the alphabet in my
address with the letter 'x')

"Bill Putney" <bptn (AT) kinez (DOT) net> wrote

Kip Adotta you ain't.

Ted

Bill Putney <bptn (AT) kinez (DOT) net> wrote in article
<5081ggF1dsmjvU1 (AT) mid (DOT) individual.net>...
The original overfill under discussion is 1 to 1-1/2 quarts..........

* wrote:

True enough, but then you chose to question another poster regarding
his experience with a 3 quart overfill on his Honda.

On Fri, 05 Jan 2007 17:24:16 -0500, Bill Putney <bptn (AT) kinez (DOT) net>
wrote:


Why would you picture damaged seals? It does not matter how much you
overfill the system... the oil pressure will not go up. Think of a
gas pump at the gas station. There could be 300 gallons of gas in the
underground tank or 3000 gallons of gas in that tank. It makes no
difference in the amount of gas coming out of the nozzle at your pump
until the level gets low enough that the pump starts sucking air.

With a 3 quart overfill you should picture bearings destroyed by a
lack of lubrication. With that much overfill the crank will whip the
oil in to a froth and the oil pump can't pump froth effectively so
your oil pressure goes down until you stop or the engine stops.

The seals aren't subjected to any serious pressure. They mostly just
keep the splashing oil from leaking out. Worst case scenario is a
seal would be sitting in oil and might leak a little until the oil
level drops back under it.

Steve B.