[urq] NAC: Oil level in an oil pan

[Bill Bennett]

the oil squirter primary design function is to cool the piston. then lube
the wrist pin, the new motors pressurize the wrist pin through the rod and
race motors? knife edges? have you seen the inside of the newest Audi 3.2
litre V-6? it IS a race motor. sheet! you see it as you take off the cams!
there is no bearing material under it! it is a knife v about 1 mm wide,
after all the valve springs push up, yeah I took one apart with less than
1500 miles on the Odo, void warranty. every thing about that engine was low
friction, right down to the oil seals, no surrounding coil spring. Bill
----- Original Message -----
From: "Martin pajak" <martin at quattro.ca>
To: "Schaible, David" <David.Schaible at jrspharma.com>; "Ingo D. Rautenberg"
<ingo at waratap.com>; <quattro at audifans.com>; <urq at audifans.com>;
<Louis-Alain_Richard at computerhorizons.com>
Cc: <Denis_Joncas at computerhorizons.com>
Sent: Wednesday, August 18, 2004 2:22 PM
Subject: RE: [urq] NAC: Oil level in an oil pan


> Yes, this used to be the case.
> The crank was used to "splash" the bottom of the pistons to lubricate the
> wrist pins.
> In most of the new engines this is not necessary because of the oil
> squirters.
> Also oil in any form (including mist) causes drag on the crank, not large
> but noticable (cause for knife edging of cranks for racing applications
> etc.)
> While back crank touching oil was the "normal" thing.
>
> HTH
> Martin Pajak
>
> http://www.quattro.ca
>
> 1983 Audi Ur-quattro (305,000 km) for sale : (
> 1985 Audi Ur-quattro (210,000 km) Euro spec. import mit 3B ;o)
> 1971 Porsche 911T (45,000 mi) all original
>
>
>
> -----Original Message-----
> From: urq-bounces at audifans.com [mailto:urq-bounces at audifans.com]On
> Behalf Of Schaible, David
> Sent: 18-Aug-04 16:48
> To: Ingo D. Rautenberg; quattro at audifans.com; urq at audifans.com;
> Louis-Alain_Richard at computerhorizons.com
> Cc: Denis_Joncas at computerhorizons.com
> Subject: RE: [urq] NAC: Oil level in an oil pan
>
>
> How come on small engine like a lawnmower the crank will engage the
> oil??
>
> David Schaible
>
>
>
>
> JRS Pharma LP
> 2981 Rte 22
> Patterson, NY 12563
> 845.878.3414
>
> ALL STATEMENTS IN THIS CORRESPONDENCE ARE CONFIDENTIAL UNLESS OTHERWISE
> NOTED
>
>
> -----Original Message-----
> From: Ingo D. Rautenberg [mailto:ingo at waratap.com]
> Sent: Wednesday, August 18, 2004 4:03 PM
> To: quattro at audifans.com; urq at audifans.com;
> Louis-Alain_Richard at computerhorizons.com
> Cc: Denis_Joncas at computerhorizons.com
> Subject: Re: [urq] NAC: Oil level in an oil pan
>
> Should not happen.  That's why cars nowadays have windage trays.  Don't
> want
> oil starvation or oil foaming.  And if the crank is moving at any rate
> and
> oil level is such that it's touching, it will foam the oil.  Not good.
> That's why you're not supposed to overfill the oil!
>
> ----- Original Message -----
> From: <Louis-Alain_Richard at computerhorizons.com>
> To: <quattro at audifans.com>; <urq at audifans.com>
> Cc: <Denis_Joncas at computerhorizons.com>
> Sent: Wednesday, August 18, 2004 3:19 PM
> Subject: [urq] NAC: Oil level in an oil pan
>
>
> > Total NAC but automotive content.
> >
> > Here at work, we are creating flash animations to train mechanics.
> Now, we
> > are working on the bottom-end module, including oil circuit, water
> > cooling, etc.
> >
> > In one animation, the computer graphics designer drew an engine seen
> from
> > the rear main seal, where we can see the oil level, the crankshaft
> > rotating, the oil circuit, etc.
> >
> > My problem: the oil level is right to the middle of the crankshaft.
> >
> > My suggestion: lower the oil level so no part of the spinning
> crankshaft
> > will touch the oil surface.
> >
> > Our problem 1 : the animation is approved by the manufacturer, and
> nobody
> > saw a problem with the higher oil level.
> > Our problem 2 : this animation is the base for many many others, and
> would
> > need at least 2 weeks of work to correct.
> >
> > My question :   - In the car world, can I say that no car engine has a
> > crankshaft touching the oil surface? If you are a
> mechanic-gearhead-car
> > guy, would this bother you?
> >
> > My understanding is that such a setup would create foaming, if not
> destroy
> > the crankshaft at higher engine speeds.
> >
> > If somebody want to see one actual animation, I can forward it ( 58kB
> ).
> >
> > Thanks in advance,
> >
> > Louis-Alain
> > _______________________________________________
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