[Vwdiesel] Getting rid of an air pocket

[Nate Wall]

Here's a question:  We all know how much of a pain its to drain the cooling
system (no drain valve, pull that little stubby heater hose off between the
pump and steel heater tube), at least on the A-2s. You also have to pull the
lower coolant hose, but its easy.

It it possible to get the same results by removing the thermostat housing
(after the lower hose is removed)? I plan on replacing my T-stat soon and
will give this a try. I would imagine I'll get a huge rush of coolant when I
do this!

--Nate

"boyer at cts.com" wrote:

> I have been filling my VW from the upper hose for the last ten years
> or so...but in the last several, I have also drilled an 1/8" hole
> in the flat part of the thermostat to facilitate air expulsion.
> Doesn't have to be an eighth...but whatever looks right.
>
> Some thermostats are built this way at the factory, but I can't
> recall if the Wahler (sp) I buy for the VW are so set up.
>
> Works like a charm on the old IH, though...and its five gallon
> cooling system!
>
> Regards,
>
> Chris Boyer
>
> LBaird119 at aol.com writes:
> >> Problem was not the thermostat.  Seems like there is an air pocket and
> it's
> >> been recommended that the cooling system be "burped".
> >>
> >>  Since it's a little heavy and awkward to hold the Jetta over my
> shoulder
> >and
> >> pat it's back, can someone recommend another method?
> >>
> >  Simple, you just fill it through the upper hose.  Generally after a
> couple
> >of heat/cool cycles the bubble works it's way to the reservoir.
> >     Loren
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