In article <86256521.0054E7E2.00(at)Internet-504.interliant.com>,
"Jay Laifman"<Jay_Laifman(at)countrywide.com> wrote:
>
> As an aside, I had a terrible time finding a suitable replacement
> cardboard/pressboard. I ended up going to my local art supply store. They
> had a thin sheet of cardboard and then and double sheet. Unfortunately the
> thin was too thin and the double sheet was really too thick, but I went
> with it anyway. I choose the thick one because the thin one would never
> hold up to any use.
>
What about paper gasket material? A place I went to had 1/64" to 1/8" at
least, and probably larger, for pretty cheap (cents per square foot).
I'd expect the material to be more weather-resistant than art cardstock
since it's impregnated and likely pressed harder.
--.-~-.-~-.-~-.-~-.-~-.- J e r o m e Y u z y k -~-.-~-.-~-.-~-.-~-.-~-.-~-. BRIDGE Scientific Services | jerome(at)supernet.ab.ca Edmonton, Alberta Canada | http://www.tgx.com/bridge Sunbeam Alpine Series II #9118636
prodigy.com> Lines: 51 Sender: owner-alpines(at)autox.team.net Precedence: bulk Reply-To: jerome(at)supernet.ab.ca (Jerome Yuzyk)
In article <199709300300.XAA13812(at)mime4.prodigy.com>, you wrote: > Read with interest, the very correct remarks (so far) on this subject of PSI. > I would like to perhaps clear up some few points which may in the end cause > readers to rethink their psi ideas. .. > Now this bearing does NOT EVER need a certain psi of oil coming into it ! > What it ALWAYS NEEDS is an "adequate amount of oil volume" to keep the oval > of oil or the oil wedge intact! > Volume is the key word here.....not psi pressure. ... > On giant motor ships having huge diesel engines costing millions of > dollars, they have a volume "flow meter" for each bearing. The engine room > staff monitor gallons per minute through each bearing and there are alarms > sounded if a bearing starts to take too much volume! If that happened, it > means the bearing is loosening up its clearences and passing more oil volume.
Right! I work with people that make other PSI indicators: Pressure Safety Valves, cylinders with one inlet and two outlets, separated by a plate connected to a (usually large) spring. They measure PSI at one point on the scale: Too Much. But, PSI depends on a lot of things, enough in fact to warrant some pretty sophisticated calculations involving the type of fluid (gas, vapour, liquid or flame), its source (tank or process) and its properties (specific gravity, viscosity)
> In a passenger car, airplane or other vehicle, we cannot have costly flow > meters on bearings, so we use the next best device, which is the main > gallery pressure readings. We know what is normal and should recognize > what a drop in psi really means.
Given a single-variable measurement of a multi-variable phenomenon, it's the _relative_ measurement that matters. Just like your eye's retina, where only differences in illumination matter (and the eye trembles constantly to keep non-moving things detectable).
> not the lower psi oil readings you may be seeing. DO NOT install real > thick oils to bring up the psi. This defeats the purpose of getting high > volume through bearings. Continue with the NORMAL weights of oil according > to your seasonal temp.
I've heard a lot about heavier-oil-for-PSI-nirvana from a lot of non-List people since buying the Tomato, and thought "Hey wait a second...."
I certainly didn't mean to imply anything about Mr. Gross' helpful advice.
--
.-~-.-~-.-~-.-~-.-~-.- J e r o m e Y u z y k -~-.-~-.-~-.-~-.-~-.-~-.-~-. BRIDGE Scientific Services | jerome(at)supernet.ab.ca Edmonton, Alberta Canada | http://www.tgx.com/bridge Sunbeam Alpine Series II #9118636
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