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Car Forum / Dodge / Dodge Cars / January 2007

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overfilled the DODGE 2003 GRAND CARAVAN during oil change

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cheerful@registerednurses.com - 26 Dec 2006 15:41 GMT
Hello all,

I think by mistake I have overfilled my DODGE 2003 GRAND CARAVAN SE
with 1 to 1.5 quarts of oil.. It is like 1 inch over the max level on
the  gauge.

I have not driven the van too much around. Should I try to remove 1
quart?  or is it fine to wait for the next oil change..

please let me know your thoughts..

please see this article below.

http://autos.yahoo.com/maintain/repairqa/air_filters_oil/ques052_1.html;_ylt=Aui
hcX7S8oh9c1ljfj7lN4aDc78F


-------------

CAUTION: Do not overfill the engine. Adding too much oil can overfill
the crankcase. As the crankshaft spins around, it can whip the oil into
foam if the level is too high. This, in turn, can cause a drop in oil
pressure and loss of lubrication to critical engine parts. Also, too
much oil may cause leaks as the extra oil is forced past seals and
gaskets.
Joe - 26 Dec 2006 15:45 GMT
I'd go ahead and remove a quart.  Having the level too high puts it in
greater contact with the spinning crankshaft and it get splattered around a
lot more inside the engine.  It might be fine, but there are some problems
that can result from that.

> Hello all,
>
[quoted text clipped - 19 lines]
> much oil may cause leaks as the extra oil is forced past seals and
> gaskets.
Woody - 26 Dec 2006 16:57 GMT
The main problem it will turn the oil into foam and stop lubricating the
engine. Drain the extra oil out.....
> I'd go ahead and remove a quart.  Having the level too high puts it in
> greater contact with the spinning crankshaft and it get splattered around
[quoted text clipped - 24 lines]
>> much oil may cause leaks as the extra oil is forced past seals and
>> gaskets.
Hachiroku ハチロク - 26 Dec 2006 20:31 GMT
> The main problem it will turn the oil into foam and stop lubricating the
> engine. Drain the extra oil out.....
>> I'd go ahead and remove a quart.  Having the level too high puts it in
>> greater contact with the spinning crankshaft and it get splattered
>> around a lot more inside the engine.  It might be fine, but there are
>> some problems that can result from that.

Or possibly create Hydraulic Lock if the oil pressures itself past the
seals...

>>> Hello all,
>>>
[quoted text clipped - 19 lines]
>>> much oil may cause leaks as the extra oil is forced past seals and
>>> gaskets.
* - 03 Jan 2007 22:32 GMT
Hachiroku $B%O%A%m%/ wrote in article <iEfkh.7657$6Z5.811@trndny01>...

> Or possibly create Hydraulic Lock if the oil pressures itself past the
> seals...

????????

Would you please explain the technology supporting this statement?
Hachiroku ハチロク - 04 Jan 2007 05:25 GMT
> Hachiroku $B%O%A%m%/ wrote in article <iEfkh.7657$6Z5.811@trndny01>...
>>
[quoted text clipped - 4 lines]
>
> Would you please explain the technology supporting this statement?

Oil is under pressure. If there is too much oil, and the pressure builds,
then it can push out seals meant to keep it out of places. If the OP is
luck, it will push a seal out at one end of the engine or another and leak
onto the ground or into the tranny (depending on your definition of "luck")

If not, it can push out the valve seals and drop into the engine, and
since a liquid cannot be pressurized...BANG! Hydraulic Lock...
* - 04 Jan 2007 12:17 GMT
Hachiroku $B%O%A%m%/ wrote in article <ed0nh.593$Jf.264@trndny03>...

> > Hachiroku $B%O%A%m%/ wrote in article <iEfkh.7657$6Z5.811@trndny01>...
> >>
[quoted text clipped - 12 lines]
> If not, it can push out the valve seals and drop into the engine, and
> since a liquid cannot be pressurized...BANG! Hydraulic Lock...

Er....

.....exactly what engine are you talking about that has pressurized oil
against the valve seals?

Any oil that manages to bypass the valve seals usually ends up burned -
creating that familiar blue smoke.
Hachiroku ハチロク - 05 Jan 2007 14:35 GMT
> Hachiroku $B%O%A%m%/ wrote in article <ed0nh.593$Jf.264@trndny03>...
>>
[quoted text clipped - 26 lines]
> Any oil that manages to bypass the valve seals usually ends up burned -
> creating that familiar blue smoke.

'88 Honda Accord. JiffyLube overfilled it by three quarts. I don't know
how it happened, I know they gave me a new engine...I'm just going by what
the Honda Service Manager told me. I figured he knows what he's talking
about...
Brent P - 05 Jan 2007 14:50 GMT
> '88 Honda Accord. JiffyLube overfilled it by three quarts. I don't know
> how it happened, I know they gave me a new engine...I'm just going by what
> the Honda Service Manager told me. I figured he knows what he's talking
> about...

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.
* - 05 Jan 2007 18:18 GMT
Hachiroku $B%O%A%m%/ wrote in article <zmtnh.6$Ul4.1@trnddc05>...

> > Hachiroku $B%O%A%m%/ wrote in article <ed0nh.593$Jf.264@trndny03>...
> >>
[quoted text clipped - 31 lines]
> the Honda Service Manager told me. I figured he knows what he's talking
> about...

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.
Bill Putney - 05 Jan 2007 22:24 GMT
>>'88 Honda Accord. JiffyLube overfilled it by three quarts. I don't know
>>how it happened, I know they gave me a new engine...I'm just going by
[quoted text clipped - 3 lines]
>>the Honda Service Manager told me. I figured he knows what he's talking
>>about...

> 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.

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')
Ted Mittelstaedt - 06 Jan 2007 08:58 GMT
> blown seals (penguin/ice cream jokes notwithstanding).

Kip Adotta you ain't.

Ted
Bill Putney - 06 Jan 2007 16:04 GMT
>>blown seals (penguin/ice cream jokes notwithstanding).
>
> Kip Adotta you ain't.
>
> Ted

Never heard of him, but a Google search shows him as the apparent
inventor of the joke.

Bill Putney
(To reply by e-mail, replace the last letter of the alphabet in my
address with the letter 'x')
* - 06 Jan 2007 12:34 GMT
Bill Putney <bptn@kinez.net> wrote in article
<5081ggF1dsmjvU1@mid.individual.net>...

> >>'88 Honda Accord. JiffyLube overfilled it by three quarts. I don't know
> >>how it happened, I know they gave me a new engine...I'm just going by
[quoted text clipped - 16 lines]
> (To reply by e-mail, replace the last letter of the alphabet in my
> address with the letter 'x')

The original overfill under discussion is 1 to 1-1/2 quarts..........
cavedweller - 06 Jan 2007 13:38 GMT
> Bill Putney <bptn@kinez.net> wrote in article
> <5081ggF1dsmjvU1@mid.individual.net>...
[quoted text clipped - 13 lines]
> > > Either way, I would find another place to have my car serviced and
> > > repaired.

> > With a 3-quart overfill, I can picture some damage being done, including
> > blown seals (penguin/ice cream jokes notwithstanding).
[quoted text clipped - 4 lines]
>
> The original overfill under discussion is 1 to 1-1/2 quarts..........

True enough, but then you chose to question another poster regarding
his experience with a 3 quart overfill on his Honda.
Bill Putney - 06 Jan 2007 16:01 GMT
>>Bill Putney <bptn@kinez.net> wrote in article
>><5081ggF1dsmjvU1@mid.individual.net>...
[quoted text clipped - 27 lines]
> True enough, but then you chose to question another poster regarding
> his experience with a 3 quart overfill on his Honda.

Exactly!

Bill Putney
(To reply by e-mail, replace the last letter of the alphabet in my
address with the letter 'x')
* - 06 Jan 2007 22:33 GMT
cavedweller <jawnwillie@hotmail.com> wrote in article
<1168090721.030491.189790@s80g2000cwa.googlegroups.com>...

> > Bill Putney <bptn@kinez.net> wrote in article
> > <5081ggF1dsmjvU1@mid.individual.net>...
[quoted text clipped - 25 lines]
> True enough, but then you chose to question another poster regarding
> his experience with a 3 quart overfill on his Honda.

....who was posting that one could experience a hydraulic lock due to
pressurized oil getting past his valve seals and locking up the piston -
which is what I questioned.


The poster discussing the 3 quart overfill never uttered a word about
blowing out seals.

He just claimed that Jiffy Lube replaced the engine after I questioned him
about hydraulic lock caused by pressurized oil bypassing the valve seals
into the cylinder.

Yet another poster posed the theory of a large overfill generating enough
pressure to blow seals - not necessarily blow the engine - but I would
think the standard crankcase ventilation system would absorb any pressure
developed.
cavedweller - 07 Jan 2007 14:08 GMT
> > True enough, but then you chose to question another poster regarding
> > his experience with a 3 quart overfill on his Honda.
[quoted text clipped - 14 lines]
> think the standard crankcase ventilation system would absorb any pressure
> developed.

Well, I read all that after the thread got hijacked.  What I didn't
find was your advice to the OP and who seems to have resolved his
problem.

Things do get lost though.  I offered a wild theory to sort of support
the idea of a hydrostatic lock in the bottom end of the Honda engine
that may have blown some end seals but it didn't appear in this group
thread.  Instead it ended up as a cross post into the group that the OP
included in his original post.
Hachiroku ハチロク - 13 Jan 2007 03:20 GMT
> He just claimed that Jiffy Lube replaced the engine after I questioned him
> about hydraulic lock caused by pressurized oil bypassing the valve seals
[quoted text clipped - 4 lines]
> think the standard crankcase ventilation system would absorb any pressure
> developed.

As I have come to understand since then, Hydraulic Lock occurs when a
fluid gets into the combution chamber. From what the Honda Manager told
me, enough oil had gotten into the cylinders to cause Hydraulic Lock. I'm
guessing it blew a seal or gasket somewhere.

What I do know for a fact is the engine was a mess! I started it and the
OIL light came on, and I shut it off and saw oil spewing out onto the
ground.
Steve B. - 06 Jan 2007 15:43 GMT
>With a 3-quart overfill, I can picture some damage being done, including
>blown seals (penguin/ice cream jokes notwithstanding).

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.
cheerful@registerednurses.com - 06 Jan 2007 15:52 GMT
BTW,

I was the original poster. and after a few days, I  took it to WALMART
and got the oil changed for 18$. As I did not have the time/energy to
try to drain out  accurately I quart.

My van works fine, I hope so.

I think I drove only 20-30 miles with the extra quart... I hope I did
not cause any damage.
Don in San Antonio - 06 Jan 2007 21:26 GMT
> BTW,
>
[quoted text clipped - 6 lines]
> I think I drove only 20-30 miles with the extra quart... I hope I did
> not cause any damage.

Are you sure you had an extra quart in the crankcase?  I typically see
an overfill on the dipstick after changing oil and filter.  I add the
exact amount specified in the manual and it always looks overfilled.
I've noticed the same thing on several cars I've owned and never had a
problem.
Ken Weitzel - 06 Jan 2007 23:19 GMT
>> BTW,
>>
[quoted text clipped - 12 lines]
> I've noticed the same thing on several cars I've owned and never had a
> problem.

Hi...

Does it still check over-full after running it long enough to fill
the filter?

Take care.

Ken
Don in San Antonio - 07 Jan 2007 00:54 GMT
| > Are you sure you had an extra quart in the crankcase?  I typically see
| > an overfill on the dipstick after changing oil and filter.  I add the
[quoted text clipped - 7 lines]
| Take care.
| Ken

Good question Ken .  Yes it does.  I always start the engine and run it
for a few minutes at idle just to make sure there are no leaks.  Then I
check the old level and it usually reads high by at least a half quart,
maybe more.  I don't even wait for oil to drain back into the crankcase,
I just check the level to make sure it's okay and I didn't do something
stupid.  I like to see the nice clean oil on the dip stick.  :-)
Hachiroku ハチロク - 13 Jan 2007 03:17 GMT
> | > Are you sure you had an extra quart in the crankcase?  I typically
> see
[quoted text clipped - 17 lines]
> just check the level to make sure it's okay and I didn't do something
> stupid.  I like to see the nice clean oil on the dip stick.  :-)

OH. That explains a lot!

The sloshing oil is climbing up the dipstick! Check the oil with the
engine cold, before you start it. Then you'll get an accurate reading of
what is in the crankcase!
Don in San Antonio - 13 Jan 2007 21:16 GMT
| > Good question Ken .  Yes it does.  I always start the engine and run it
| > for a few minutes at idle just to make sure there are no leaks.  Then I
[quoted text clipped - 8 lines]
| engine cold, before you start it. Then you'll get an accurate reading of
| what is in the crankcase!

I really don't think there is any "sloshing oil" after the engine has
stopped.  Waiting a few minutes might give a more accurate reading, but
waiting until the engine is cold is unnecessary.
Hachiroku ハチロク - 14 Jan 2007 18:20 GMT
> | > Good question Ken .  Yes it does.  I always start the engine and run
> it
[quoted text clipped - 18 lines]
> stopped.  Waiting a few minutes might give a more accurate reading, but
> waiting until the engine is cold is unnecessary.

Yeah, that too.

But as far as sloshing oil, the bottom end of the piston rods are bathed
in oil, so some splashing does occur...
cavedweller - 14 Jan 2007 18:53 GMT
> > I really don't think there is any "sloshing oil" after the engine has
> > stopped.  Waiting a few minutes might give a more accurate reading, but
[quoted text clipped - 4 lines]
> But as far as sloshing oil, the bottom end of the piston rods are bathed
> in oil, so some splashing does occur...

errr, "after the engine has stopped.."?

When you say "bathed", you do mean pressure fed, don't you?
Hachiroku ハチロク - 16 Jan 2007 04:42 GMT
>> > I really don't think there is any "sloshing oil" after the engine has
>> > stopped.  Waiting a few minutes might give a more accurate reading,
[quoted text clipped - 8 lines]
>
> When you say "bathed", you do mean pressure fed, don't you?

I dunno...I drive Toyotas, mostly. AFAIK, the bottom of the piston rods
sit in the oil.

I was thinking about this suject today, and I remembered back when I was
in my 20's (um, this was just a *few* years ago...  ;)

A girl came up to a friend and I and said her car wouldn't start. She had
an early 70's Mustang, a "Secretary Special", with a 6 cyl. You could here
the solenoid actuating, everything seemed OK, but it just wouldn't crank.
The other guy with me for some unknown reason pulled the dipstick, I guess
to see if there was enough oil and trying to judge if the pistons had
seized.

There was oil, alright! All the way up the spout! He asked her how so much
oil got in the engine, and she said, "I dunno...I just have them put a
quart in every time I get gas"...!

She thought cars burned oil as well as gas, and thought you had to add oil
every time you added gas. We went back to my car and got my wrenches, and
drained a quart...then another...then another...about 5 quarts. When it
finally got to the FULL mark on the dipstick, we had her try it and the
car started right up.
cavedweller - 16 Jan 2007 14:52 GMT
> >> > I really don't think there is any "sloshing oil" after the engine has
> >> > stopped.  Waiting a few minutes might give a more accurate reading,
[quoted text clipped - 11 lines]
> I dunno...I drive Toyotas, mostly. AFAIK, the bottom of the piston rods
> sit in the oil.

Likely not when the engine is running and the pump is feeding oil to
the lube system. (or when the crankcase is overfull)  In operation,
"oiling" for the rod bearings is accomplished by pressure feed.via the
cross drilled holes in the crankshaft journals.

> I was thinking about this suject today, and I remembered back when I was
> in my 20's (um, this was just a *few* years ago...  ;)
[quoted text clipped - 15 lines]
> finally got to the FULL mark on the dipstick, we had her try it and the
> car started right up.

Now that's a good one.  I can just see the head of oil all the way back
up to the top end!!    So now we come back to visualizing a crankcase
SO full that on cranking the pistons have nowhere to go on the BOTTOM
and generate a hydrostatic lock. Hilarious!!
Hachiroku ハチロク - 16 Jan 2007 23:25 GMT
>> She thought cars burned oil as well as gas, and thought you had to add
>> oil every time you added gas. We went back to my car and got my
[quoted text clipped - 6 lines]
> that on cranking the pistons have nowhere to go on the BOTTOM and generate
> a hydrostatic lock. Hilarious!!

We thought it was, too...we also showed her how to read a dipstick...

Crude comments removed!  ;P
Noozer - 16 Jan 2007 23:53 GMT
> Crude comments removed!  ;P

But wasn't that a thread about oil?
Hachiroku ハチロク - 17 Jan 2007 04:03 GMT
>> Crude comments removed!  ;P
>
> But wasn't that a thread about oil?

<GROAN...>

Good one...good one!
Steve - 14 Jan 2007 21:25 GMT
> But as far as sloshing oil, the bottom end of the piston rods are bathed
> in oil, so some splashing does occur...

Not unless the engine is over-filled!  Only lawnmower engines and other
"splash" oiled engines dip the conrods into the oil.
Hachiroku ハチロク - 13 Jan 2007 03:15 GMT
On Sat, 06 Jan 2007 07:52:20 -0800, cheerful wrote:

> BTW,
>
[quoted text clipped - 6 lines]
> I think I drove only 20-30 miles with the extra quart... I hope I did not
> cause any damage.

Was that all? An extra quart? I thought it was more than that!

I fill my Toyotas (and my GR Vger when I had it) with the proper amount of
oil, less one-half quart; then I put in a quart of Marvel Mystery Oil. No
probs, until I did this on the Honda (same one with the blown engine...I
started doing my own oil changes after that!) and the car wouldn't start!
1/2 Quart over? Maybe it has something to do with the way Hondas move oil...?
Bill Putney - 06 Jan 2007 16:07 GMT
>>With a 3-quart overfill, I can picture some damage being done, including
>>blown seals (penguin/ice cream jokes notwithstanding).
[quoted text clipped - 17 lines]
>
>              Steve B.

I suspect if you put enough oil in most engines and rev. them high
enough some seal or gasket will let loose from dynamic localized
pressure (I just snuck the word gasket in there).  :)

Bill Putney
(To reply by e-mail, replace the last letter of the alphabet in my
address with the letter 'x')
jim - 06 Jan 2007 16:21 GMT
> >With a 3-quart overfill, I can picture some damage being done, including
> >blown seals (penguin/ice cream jokes notwithstanding).
>
> Why would you picture damaged seals?  It does not matter how much you
> overfill the system...  the oil pressure will not go up.

Seems to me that if you filled an engine right up to the top and started
it up there would be some increase of pressure. I have never actually
tried filling an engine until it was full, but I would be extremely
surprised if all the oil stayed contained inside the engine when it was
started up.

>  Think of a
> gas pump at the gas station.  There could be 300 gallons of gas in the
[quoted text clipped - 6 lines]
> 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.

But that is not what he said happened. He said he got a new engine and
that the service rep explained that Hydraulic Lock was the cause of the
engine failure. This sounds believable (why would they lie). What he
probably got confused about is what valve was involved. It probably
wasn't the engine valves but the PCV valve that caused the failure. I
can imagine, under the circumstances described, a geyser of oil being
sucked into the engine thru the PCV valve.

-jim

> 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.
Steve B. - 04 Jan 2007 14:23 GMT
On Thu, 04 Jan 2007 05:25:30 GMT, Hachiroku ???? <Trueno@AE86.gts>
wrote:

>Oil is under pressure. If there is too much oil, and the pressure builds,
>then it can push out seals meant to keep it out of places. If the OP is
[quoted text clipped - 3 lines]
>If not, it can push out the valve seals and drop into the engine, and
>since a liquid cannot be pressurized...BANG! Hydraulic Lock...

There is nothing accurate in this post...  The oil pump is sucking oil
out of the oil pan which is essentially a bucket.  The oil pump has no
idea if there is 1 quart of oil in that bucket or 300 gallons of oil
in that bucket.  The problem with overfilling is that the spinning
crankshaft comes in contact with the oil.  The whipping action of the
crankshaft will aerate the oil and turn it in to a foamy froth.  The
oil pump can not pump this froth so you loose oil pressure and soon
after loose an engine if you don't stop.

Valve seals are not exposed to pressurized oil.  Any lubrication needs
they have are handled by oil splashing off the other valve train
components.

            Steve B.
ninebal310@aol.com - 04 Jan 2007 20:21 GMT
> On Thu, 04 Jan 2007 05:25:30 GMT, Hachiroku ???? <Trueno@AE86.gts>
> wrote:
[quoted text clipped - 21 lines]
>
>              Steve B.

You are correct Steve. Also, don't the oil pump have a pressure relief
valve built into them so that excess pressure doesn't build up?

Hank

Hank
SBlackfoot - 04 Jan 2007 23:52 GMT
> Oil is under pressure. If there is too much oil, and the pressure builds,
> then it can push out seals meant to keep it out of places. If the OP is
[quoted text clipped - 3 lines]
> If not, it can push out the valve seals and drop into the engine, and
> since a liquid cannot be pressurized...BANG! Hydraulic Lock...

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.

Signature

Posted via a free Usenet account from http://www.teranews.com

Dan C - 05 Jan 2007 02:45 GMT
> 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.

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...

Signature

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

cavedweller - 05 Jan 2007 02:57 GMT
> > 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
[quoted text clipped - 10 lines]
> --
> "Ubuntu" -- an African word, meaning "Slackware is too hard for me".

It's easy to get a hydrostatic lock with glycol/water...all it takes is
a head gasket leak.
Hachiroku ハチロク - 05 Jan 2007 14:32 GMT
> While he's wrong about the oil "locking up" the engine,

He is? How? You guys keep telling me I'm wrong, but did you ever have it
happen to you?

The one time I went ti Jiffy Lube, they overfilled by 3 quarts. The car
started hard and the engine blew. They wanted to put in a 'remanufactured'
engine, but the car was a year and a half old, so I insisted on a new
engine.

Oil can't lock up an engine, huh? Sure...
Dan C - 05 Jan 2007 15:13 GMT
On Fri, 05 Jan 2007 14:32:11 +0000, Hachiroku wrote:

>> While he's wrong about the oil "locking up" the engine,

> He is? How? You guys keep telling me I'm wrong, but did you ever have it
> happen to you?

Nope.  See below.

> The one time I went ti Jiffy Lube, they overfilled by 3 quarts. The car
> started hard and the engine blew. They wanted to put in a 'remanufactured'
> engine, but the car was a year and a half old, so I insisted on a new
> engine.
>
> Oil can't lock up an engine, huh? Sure...

Perhaps it can (I won't claim to know all possible situations), but not in
the manner you claimed ("leaking past the valve seals").  

Is that clear enough for you?

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cavedweller - 05 Jan 2007 16:07 GMT
> On Fri, 05 Jan 2007 14:32:11 +0000, Hachiroku wrote:
>
[quoted text clipped - 19 lines]
> --
> "Ubuntu" -- an African word, meaning "Slackware is too hard for me".

Well, I guess IF the crankcase was just SO full of extra oil that there
was absolujtely no room for the downgoing pistons to move it, then some
degree of hydraulic locking MIGHT be possible.  In that case, blown
crank seals MIGHT be a possibility.

Hydraulic locking is usually associated with a full combustion chamber,
either with fuel or with coolant or, in the case of radial engines,
with oil in the bottom jug.
Hachiroku ハチロク - 05 Jan 2007 17:32 GMT
>> Oil can't lock up an engine, huh? Sure...
>
> Perhaps it can (I won't claim to know all possible situations), but not in
> the manner you claimed ("leaking past the valve seals").
>
> Is that clear enough for you?

Actually, what it may do is remove the air space from the pan and lock it
that way. And mine was not the only case of Hydraulic Lock I have heard of
from being overfilled. So, the valve seals was a guess...

And SuSE is just right. Well, except 10.2. If you're going to include all
these fancy desktop tricks, you could at least make sure it works with Ati
video cards...they're only currently the world's biggest Video chip maker...

I like Ubuntu....more Windows users should try it! (But that is a
discussion for another group...Oh, knoppix is cool, too...saved my bacon
when Windows or SuSE 9.3 has blown it's brains out!)
SBlackfoot - 06 Jan 2007 07:23 GMT
> > 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
[quoted text clipped - 7 lines]
> Perhaps you should have paid more attention in that high school physics
> class...

High school was an awfully long time ago.  ;)

As I remember it, there are three basic states of matter. Gaseous, liquid,
and solid. Well four, but plasma is irrelevant here. Liquids are not easily
compressed but should enough pressure be applied (definitely beyond anything
occuring inside an engine) but there is a compression factor. Why do you
think there are specific hydraulic oils?

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Dan C - 06 Jan 2007 21:06 GMT
>> 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...

> As I remember it, there are three basic states of matter. Gaseous, liquid,
> and solid. Well four, but plasma is irrelevant here. Liquids are not easily
> compressed but should enough pressure be applied (definitely beyond anything
> occuring inside an engine) but there is a compression factor. Why do you
> think there are specific hydraulic oils?

There are diffferent hydraulic oils for several reasons, but the amount of
compression each exhibits is a very minor (at best) factor.  It's more a
matter of temperature tolerance/stability and lubrication requirements.
But anyway..., for all intents and purposes (and certainly in the context
of *this* discussion), the fact remains that liguids are not compressable.
We are, after all, discussing a car engine, as you said above.

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* - 05 Jan 2007 12:53 GMT
SBlackfoot <trypticon@sympatico.obvious.ca> wrote in article
<459d8693$0$4815$88260bb3@free.teranews.com>...
> > Oil is under pressure. If there is too much oil, and the pressure builds,
> > then it can push out seals meant to keep it out of places. If the OP is
[quoted text clipped - 8 lines]
> 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.

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.
HLS@nospam.nix - 27 Dec 2006 21:36 GMT
> Hello all,
>
> I think by mistake I have overfilled my DODGE 2003 GRAND CARAVAN SE
> with 1 to 1.5 quarts of oil.. It is like 1 inch over the max level on
> the  gauge.

If you replaced the filter, but have not started the engine yet, you may be
seeing the filter volume (which will go away when you start the engine).

Otherwise, if you have really overfilled it, then drain out a quart or so.

You can tolerate a little overfill with no problem, but a quart or more is
too
much.
ninebal310@aol.com - 03 Jan 2007 23:43 GMT
> Hello all,
>
[quoted text clipped - 6 lines]
>
> please let me know your thoughts..

Are you sure you put in too much oil? I had a Dakota that took 6 qts in
the 4.7 V-8. I was the first person to change the oil and the dip stick
showed that it was over full. I was positive I only put in 6 qts. with
the filter. I found out the Dakota had the wrong dip stick. I never
found the correct dip stick, so I just filed a notch where the FULL
level was.

Hank
 
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