There maybe be more to oil "coolers" than meet the eye here. These,
engine and transmission "coolers" may also be heaters. Oil does not
lubricate very well until about 150 deg.  In very cold weather this
"cooler" is a heater to bring the oil temp. up.  This is also a
was good reason you should never beat a cold engine/transmission.
An external air cold oil cooler obviuosly does nothing to heat the oils.

            Eric                   86-VW4x4
            vw4x4@fyi.net          86-SS Syncro
            Pittsburgh, PA USA     1936-Chrysler
                                   92-Jetta GWC
            www.fyi.net/~vw4x4/vw4x4.htm

On Sun, 9 Mar 2003, Dennis Haynes wrote:

> I've always questioned the need-benefit of this cooler. Just like the
> engine oil cooler, it has hot water circulating to it. Most transmission
> heat is developed in the torque converter. The Vanagon converter is self
> cooled due to the open housing and the air fins on the outside. I've
> never done any temp testing on these as they cause so little trouble.
> For what the parts cost, I also see little reason to play with
> installing used auto sections from junk yards. It would be a nice
> upgrade to use an Audi 5000 transmission but unfortunately, it turns the
> wrong way. As for shift speeds, it is extremely important that the
> accelerator cable and throttle linkage is adjusted correctly. When
> pushing the accelerator down, it should get hard ~1/2" from the floor
> and then finish traveling. This is the kick down mode. In this position
> the throttle will be wide open that that spring on the linkage should be
> depressed. In this position, the transmission should up-shift at ~5200
> rpm. If not, then there is a problem n the valve body or governor.
>
> Dennis
>
>
> -----Original Message-----
> From: Vanagon Mailing List [mailto:vanagon@GERRY.VANAGON.COM] On Behalf
> Of Edward Maglott
> Sent: Sunday, March 09, 2003 8:48 PM
> To: vanagon@GERRY.VANAGON.COM
> Subject: Re: Fw: Golf/ jetta auto trans can be used with vanagon diffs
>
> Very interesting.  sounds like he is saying to leave the cooler off
> altogether?  Is the Tranny OK with that in a Vanagon?  My tranny is
> toasted
> and has not been right since I got the van.  That said, I feel like it
> shifts way too soon.  It will be in 3rd by 25mph under fairly normal
> driving.  I have no tach either, but it just feels like it is almost
> lugging the engine.  The engines in the Golfs and Jettas are more high
> revving, so I could see them set to shift at higher rpms.
> Edward
>
> At 08:10 PM 3/9/2003, you wrote:
> >
> > > > gives a real nice description.  Only a few '90-'92 golf /Jetta
> tranny's
> > > came
> > > > with oil coolers, So you can try and find one, however, much more
> > > > expensive... I always use the regular ones without and leave the
> cooler
> > > > lines attached to the cooler and secure it in, because you'll have
> no
> >bolt
> > > > holes on the Golf /Jetta trany's to thread them into.  I've been
> told by
> > > > many you can't do this.  They may be right, however, they also
> told me
> > > > they'd never actually  tried it.  We've done 8 here that have over
> >50,000
> > > > miles on since the change and one with over 132,000 and counting.
> The
> > > valve
>