[Vwdiesel] Vanagon Part X: Radiator Questions?

[Nate Wall]

3-Pin is for 2-speed fans (All TD models and models w/
A/C, I believe, and I guess the Vanagons). On 2-speed
models, the high fan speed gets power through a relay
(A 50 amp relay screwed to the fan shroud), the low
speed does not. One other thing to check if the "High"
speed does not work, 2-Pin thermoswitch is for single
speed cooling fans.

I lost all my R-12 once because the fan relay failed
(an aftermarket one made in China) and the cooling fan
did not kick on "High" one hot summer day when I
turned on the A/C. What a sight to see and one hell of
a noise, 2 lbs of hot R-12 venting into the atmosphere
in about 3 seconds.  The safety plug in the bottom of
the receiver/drier melted and blew. The new
receiver/driers do not have the vent plug! Melted my
fuse block also. Stay away from those cheap
imitations.

--Nate
--- jon <jon at kenneke.com> wrote:
>
> >   It's an inch and a half diameter plug, screwed
> into one end pan of the
> > radiator.  It will have two or 3 pins as Nate
> said.  Most likely 2.
>
> I forgot to mention in my previous post that the
> thermoswitch on my 1983
> Vanagon is the 3 pin type. (Might be useful for
> other Vanagon owners
> to know...)
>
> Jon
>
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