[Vwdiesel] Getting rid of an air pocket
nwall at opei.org
Mon Dec 23 11:22:09 EST 2002
I do not have power steering, so that's not an issue.
I just mail ordfered some stuff for the TD from germanautoparts.com and one of the
items is a Whaler 87 deg. C. OEM thermostat (for $8). VW wanted $32!
They even had the ball joint lock plates and nuts.
Val Christian wrote:
> That's an OK strategy, if you don't mind taking the rear bracket off the
> power steering pump, and all that comes with it. On my 91, I pull the
> lower hose off the radiator. It doesn't get everything, but it saves
> allot of time.
> Nate, don't go with the generic thermostat. Learn from my experience and
> buy a quality one with a beefy rivet on the plate serving as a valve at the
> rear of the thermostat.
> ps: As for burping the cooling system, I've tried pulling one of the sensors
> in the plastic flange at the front of the cylinder head. It let allot of
> coolant out, but I always found that running the system through a couple
> of hot/cold cycles with RPMs on the engine, cleared things. I think the
> heater core may be higher in the system than those sensors.
> > 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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