That's beautiful work with the copper pipe Dennis, I can imagine that took
a lot of time and skill. Is there much to be gained by doing a completely
custom fabrication to locate the oil cooler at the front of the van versus
a turnkey solution that locates the cooler in the rear of the van as
offered by Chris Corkins/Vanistan? (
https://intrepidoverland.com/shop/deluxe-oil-cooler-kit/)

-Mark

On Thu, May 28, 2020 at 7:36 PM Dennis Haynes <d23haynes57@hotmail.com>
wrote:

>
>
> From: Dennis Haynes
> Sent: Thursday, May 28, 2020 10:25 PM
> To: Richard Koller <brvkoller@gmail.com>
> Subject: RE: oil cooler
>
> https://1drv.ms/a/s!AqaEiIhKCAKbkdkBD4lkG68mLkwWBA
>
> here is a link with some pictures from a few installations including a
> Syncro. I also included an Autometer gauge set up with the sensors. This
> kit is complete including the gauge panel usually under $100. The lighting
> is a bit dim and these are only 1.5” gauges. They are fairly accurate and
> easy to read.
> One of these sandwich adapters is from glo Shift. It uses a custom gasket
> and I have had them fail. The ports are 3/8” npt but there is a restriction
> under each port, I drill them out. My choice for adapter now is the Canton
> racing. Pricey but very well made and supported. I also like their filters.
> I showed 2 different coolers, 16 and 19 row.
>
> Dennis
>
>
> From: Richard Koller [mailto:brvkoller@gmail.com]
> Sent: Thursday, May 28, 2020 6:33 PM
> To: Dennis Haynes <d23haynes57@hotmail.com<mailto:d23haynes57@hotmail.com
> >>
> Subject: Re: oil cooler
>
> Thanks Dennis I am anticipating 65-70 mph with A/C. Fair amount of
> interstate driving so a 16 row cooler should work l like the idea of copper
> lines and look forward to pictures of your setup so l can see how you
> connect up to the thermostat and sandwich adapter
> Rick
>
>
> On Thu, May 28, 2020 at 5:46 PM Dennis Haynes <d23haynes57@hotmail.com
> <mailto:d23haynes57@hotmail.com>> wrote:
> Rich,
> If I was a writer I could write books on oil cooling and my approach. Here
> are some quick thoughts.
> First, you need to establish if there is a need and how much. If you are a
> 55 mph driver maybe you don’t need one.
> If you are 70+driver down south and you always use the AC maybe the 19 row
> is the right choice. For most with up to 2.3L engines the 16 plate will do
> the job.
> You should add instrumentation to determine the need?
> Adding any system adds parts to maintain and additional points of failure.
> The instrumentation will still be needed.
> Oil cooling thermostats are not absolute! And they do fail! They actually
> work by allowing the oil to bypass the cooler. There will usually be some
> flow through the cooler which also helps avoid a shock of cold oil suddenly
> coming back. Properly designed and installed they work as a mixing valve.
> The sandwich adapter thermostats tend to have smaller bypass paths so they
> are limited how much they can bypass the cooler during cold weather. Most
> all oil cooler t-stats tend to operate as low as 160 and fully open at 180.
> With the 4 port valves you can install for the return to be the controlled
> oil.
> Get rid of the original oil to coolant heat exchanger unless you really
> need to operate in extremely cold weather. You fight the coolers
> effectiveness by passing the oil past 200F water as it leaves the engine.
> The long lines to the front also help the thermostat work better in cold
> weather. As the oil in the engine heats up, that volume of cold thick oil
> will resist flow until that stat closes the bypass enough to push the oil
> past that resistance.
> Oil cooling demand is really based on engine load and speed overtime.
> Cooler up front puts air flow in direct proportion to vehicle speed. I
> traffic cooler not needed much and radiator fan will do the trick. Il temp
> will come up to and follow coolant temp.
> Avoid hoses on, near the engine especially near the exhaust. Steel or
> copper refrigeration tube, flare or yor-lok fittings. Sandwich adapter yo
> want a good unit, supported with replacement gaskets or using oil filter
> gaskets. Large unrestricted ports. 1/2" tube and AN-8 hose is enough.
>
> I'll try later to send some pictures.
>
> Dennis
>
>
>
> -----Original Message-----
> From: Vanagon Mailing List <vanagon@gerry.vanagon.com<mailto:
> vanagon@gerry.vanagon.com>> On Behalf Of Richard Koller
> Sent: Thursday, May 28, 2020 2:11 PM
> To: vanagon@GERRY.VANAGON.COM<mailto:vanagon@GERRY.VANAGON.COM>
> Subject: oil cooler
>
> Hi Vanagoneers,,
> I am retiring soon and  updating my camper for future long trips and have
> started on renewing some of the 30 year old parts.
> I am gathering info for installing an oil cooler on my syncro. I want to
> install it in front of the radiator. I read one of Dennis Hayne's recent
> descriptions of adding one to his '91 automatic. I will choose the 16 or 19
> row cooler depending on fit and AN 8 hose to fit onto it. Dennis if you
> read this, what is the supplier you use for the various components. I found
> a company in Florida that sells Mocal and Setrab. I presume you need a
> sandwich adaptor to supply the cooler and I would use an inline thermostat
> and not one in the sandwich adaptor as Dennis recommended. Where is the
> best place to locate the thermostat?
> Thanks
> Rick Koller
>