Date:         Tue, 24 Oct 2017 10:02:15 -0700
Reply-To:     Don Hanson <dhanson928@GMAIL.COM>
Sender:       Vanagon Mailing List <vanagon@gerry.vanagon.com>
From:         Don Hanson <dhanson928@GMAIL.COM>
Subject:      Re: Oil heat exchanger fail.. more
Comments: To: Dennis Haynes <d23haynes57@hotmail.com>
In-Reply-To:  <CY4PR20MB130300D048189ADDA09E4572A0470@CY4PR20MB1303.namprd20.prod.outlook.com>
Content-Type: text/plain; charset="UTF-8"

The pressure of the WBX "blue cap" is lower than the sedans' caps.
 Coolant system for the Vanagon seems more than adequate for my ABA 2
liter, despite it being a high performance, high compression hybrid.  Very
different characteristics from a boxer..
The oil does get hot, hauling a heavy boxy Vanagon rather than a little
Rabbit, but the coolant stays cool, till you mix it with oil..grin.
...


On Oct 24, 2017 9:42 AM, "Dennis Haynes" <d23haynes57@hotmail.com> wrote:

> The operation of those engines in a Vanagon will be somewhat different
> than in the sedans they are usually used in. There is also a large
> difference in oil temperature and pressure characteristics in the inline
> engines compared to a Waterboxer. Oil temps reaching 210F or even an
> occasional peak to 230 is no cause for alarm. As for oil pressure
> 10psi/1000 rpm is plenty and excess pressure just represents additional
> parasitic power losses.
>
> Of course everyone that has had an oil cooler failure will post at how
> unreliable they are. There simply isn't a 100 percent failure rate unless
> something is wrong. Yes they sometimes fail but so do tires and we are
> giving up on them yet.
>
> I for one do like to replace them with a direct to air cooling system, an
> external oil cooler. In addition to eliminating the oil to coolant failure
> issue properly done this type of system increases overall heat rejections
> and removes the oil heat load from the cooling system. Keep in mind that
> the addition of these systems also have their own need for maintenance and
> bring other failure opportunities.
>
> Dennis
>
>
> -----Original Message-----
> From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com] On Behalf
> Of Don Hanson
> Sent: Tuesday, October 24, 2017 9:48 AM
> To: vanagon@GERRY.VANAGON.COM
> Subject: Re: Oil heat exchanger fail.. more
>
> In my application the standard factory oil heat exchanger lowers my oil
> operating temperature appx 15, 20 f at highway speed. (15/40 oil)  That
> cooler operating temperature (typically about 190f) also holds the oil
> pressure around 60psi at 3200rpms....
>   After I swapped engine block to a 93 ABA Jetta 2.0 liter, I ran for a
> couple of weeks without the factory cooler, the way the 1.8l Cabriolet
> inline motor came from Vw, and I was seeing about 210f at speed.  A major
> highway climb at speed was causing the oil to hit 230f, and at that
> temperature, the operative oil pressure did not please me.  I re-used the
> ABA cooler from the donor motor.  Now, the oil temperature stays good, but
> INTERNET rap says the factory coolers often fail..and the rap was right, I
> think.
>     At least now I have an excuse to replace the coolant hoses now.   I
> have run a few hundred miles with the coolant lines to the factory cooler
> connected... Nothing bad happens, other than less cooling, that I could see.
>     Finding hoses to route coolant to the 1.8l head (and the cooler) I
> have on my hybrid inline, that required some creative routing...
>
>
> On Oct 24, 2017 5:17 AM, "Mbob1950" <mbob1950@gmail.com> wrote:
>
> > What is the best way to eliminate the cooler? I was thinking of
> > removing it and connecting the coolant hoses together.  Any downside to
> that setup?
> >
> > Thanks
> >
> > Bob McCullough
> >
> >
> >
> >
> >
> >
> > Begin forwarded message:
> >
> > > From: Neil N <musomuso@GMAIL.COM>
> > > Date: October 23, 2017 at 22:46:50 CDT
> > > To: vanagon@GERRY.VANAGON.COM
> > > Subject: Re: Oil heat exchanger fail.. more
> > > Reply-To: Neil N <musomuso@GMAIL.COM>
> > >
> > > Sure sounds like a messy job.
> > >
> > > Did you buy that 2 year old cooler new? Sounds like you put a lot of
> > miles
> > > on it?
> > >
> > > I guess I was lucky. The O ring on my oil cooler had started leaking
> > > so upon inspection of the cooler, noticed it was starting to craze
> > > or crack
> > a
> > > little.
> > >
> > >
> > >
> > > On Mon, Oct 23, 2017 at 8:08 PM, Don Hanson <dhanson928@gmail.com>
> > wrote:
> > >
> > >
> > > ......
> > >
> > >
> > >
> > >>   I was hoping all the posts about the VW and the weak oil cooler
> > >> was wrong....but mine, about two years old, went out too...When I
> > >> get a
> > chance,
> > >> I'll be taking that out and making a better setup... I never want
> > >> to
> > deal
> > >> with another failure...and I'm lucky nothing more serious resulted
> > >> from
> > it
> > >> blowing..
> > >
> > >
> > >
> > > --
> > > Neil n
> > >
> > > Blog: Vanagons, Westfalia, general
> > > <https://nam02.safelinks.protection.outlook.com/?url=http%3A%2F%2Ftu
> > > baneil.blogspot.ca&data=02%7C01%7Csnuggle.pants%40HOTMAIL.COM%7Cfad5
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> > > o7jx7o%3D&reserved=0>
> > >
> > > 1988 Westy Images
> > > <https://nam02.safelinks.protection.outlook.com/?url=https%3A%2F%2Fp
> > > icasaweb.google.com%2Fmusomuso%2FNew1988Westy&data=02%7C01%7Csnuggle
> > > .pants%40HOTMAIL.COM%7Cfad5eb5b56794654f54408d51ae5daa4%7C84df9e7fe9
> > > f640afb435aaaaaaaaaaaa%7C1%7C0%7C636444496878268139&sdata=4vyCwIhxZR
> > > jXcf1ygh%2BYHCEwJ0gdKxp67xN2VOWma1g%3D&reserved=0>
> > >
> > > 1981 Westfalia "Jaco" Images, technical <https://nam02.safelinks.
> protection.outlook.com/?url=http%3A%2F%2Ftubaneil.
> googlepages&data=02%7C01%7Csnuggle.pants%40HOTMAIL.COM%
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> > com/>
> > >
> > > Vanagon-Bus VAG Gas Engine Swap Group
> > > <https://nam02.safelinks.protection.outlook.com/?url=http%3A%2F%2Fti
> > > nyurl.com%2Fkhalbay&data=02%7C01%7Csnuggle.pants%40HOTMAIL.COM%7Cfad
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> > > 8p0YBM4%3D&reserved=0>
> >
>