I had a student who got a job after graduation working on an old Pawnee that
was used to tow gliders. The Pawnee blew an engine and the boss wanted my
former student to use the old oil cooler with the new engine.
My student refused and quit.
John
>From: Ted Schumacher <tedtsimx@bright.net>
>Reply-To: Ted Schumacher <tedtsimx@bright.net>
>To: tom strange <tstrange@sbcglobal.net>
>CC: "Jack W. Drews" <vinttr4@geneseo.net>, fot@Autox.Team.Net
>Subject: Re: oil cooler adapter
>Date: Tue, 14 Dec 2004 07:54:39 -0500
>
>Tom, right you are on "pitch the cooler". WE see peopel at swap meets
>buying used coolers. Ususally try to give them a business card for
>theengine pars they are about to need. WE offer Mocal componenets for this
>plumbing operation. Ted
>
>tom strange wrote:
>
>>Jack,
>> Right.... as usual.... I would add one comment on the sandwich
>>adaptor... pay attention to which way the oil is run through your adaptor.
>> Some adaptors run the oil from the engine to the oil cooler first, then
>>the filter... others (harder to find... Ken, I think yours is set up this
>>way) run the oil through the filter first then the cooler.
>> IMHO the second, (filter first) is the better. In case of making a
>>minor amount of metal insid the engine, the oil cooler may be salvaged.
>>In the case of the oil going to the cooler first.. any amount of metal
>>produced in the engine is going to be in the cooler, making the cooler an
>>automatic throw-away; at least in my shop. Re-used coolers have been the
>>culprit for many blown engines, just not worth the risk.
>>
>>
>>
>>"Jack W. Drews" <vinttr4@geneseo.net> wrote:
>>Some time ago I spent some time researching the adapter and the
>>thermostat. Here's what I found, although as usual it is subject to
>>correction from anybody who has direct and real life knowledge of them:
>>
>>The oil pumps in our engines put out oil at a quite a high volume and
>>pressure. If you instrument it and read the gauges, the unregulated
>>pressure out of our pumps is well in excess of 90 psi, which was the
>>highest my gauge would go. The filter adapter that bolts to the block
>>sends ALL this oil at this pressure through the oil cooler, and if you
>>have a remote oil filter, as used on some race cars, this means that the
>>seal on that filter sees a pressure en excess of 90 psi all the time. If
>>that doesn't bother you, that's okay, but it is probably the reason for
>>the frequency of oil cooler and oil filter failures in race cars. However,
>>there are two other adapters on the market that correct this. One is a
>>proprietary product sold by Greg Solow. The other is the round kind that
>>is sandwiched between the oil filter and the filter head, sold by Ken
>>Gillanders of BFE. There may be others. The latter two allow the pressure
>>relief valve to do its job on the oil going through all the external lines
>>and then through the pressure relief valve, so the engine oil gallery sees
>>the pressure set by your pressure relief valve.
>>
>>The thermostat that is shaped like an "H" is indeed a bypass design. That
>>is, at ALL temperatures, oil flows through the thermostat center leg of
>>the "H" and back to the engine. At higher temperatures, the thermostat
>>opens up and allows oil to flow both through the "H" and through the oil
>>cooler. Which means, of course, that not all the oil gets cooled, but
>>again, that may not matter.
>>
>>uncle jack
>>
>>
>>Tom
>>#4 white spitfire
>>
>>
>>
>
>--
>Ted Schumacher
>tedtsimx@bright.net
>http://www.tsimportedautomotive.com
>108 S. Jefferson St.
>Pandora, Ohio, USA 45877
>Fax: 419.384.3272 (24 Hrs.)
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>Tech/ Gen. Information/ Worldwide: 419.384.3022
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