[T3] Tight exhaust valves

[Jacob Adam Schroeder]

It sounds like I'd probably want to remove the engine and things would go a
lot smoother.  I know some may cringe, but this will have to wait until I
can find a good weekend to pull it out.  I have been wanting to do a
complete overhaul at some point (I want the original heads on there) and
with the engine out there will be a natural decision point.

Out of curiosity, in a normal engine on a 50 degree day (F), how long does
it take for the flaps to fully open with normal around town driving?  Are
we talking a few minutes, 30 minutes, maybe not at all?

Jacob


On Sun, Dec 29, 2013 at 7:29 AM, Jim Adney <jadney at vwtype3.org> wrote:

> On 28 Dec 2013 at 9:51, Jacob Adam Schroeder wrote:
>
> > With Bob, Keith, and Jim telling me I need to get the thermostats & flaps
> > installed, I think it would be foolish to ignore their collective wisdom.
> > Is this something I can remedy with the engine in the car or would this
> > type of a fix require pulling the engine?
> >
> > I still have the thermostat, but I don't have the flaps anymore.  I do
> have
> > a second fan housing (with flaps) but the flaps there seem rusted in
> place.
>
> You can do it in the car, but it's not easy. You have to remove the
> fans and the fan housings, and you can do this without removing the
> muffler if you pull off one piece at a time. You'll also have to
> remove the right upper cylinder cover, which can be tough go get off
> because of the screws at the front that are hard to get to with the
> engine installed.
>
> You will probably have trouble removing and installing the fan bolt,
> because the clutch will slip. If it's an AT, you can get a friend to
> jam the ring gear with a screwdriver from below, but on an MT, you'll
> have to remove a spark plug and feed a length of rope into one
> cylinder to hold it. If you do this, make SURE that you're pushing
> toward TDC against CLOSED valves. To get this right, you'll have to
> remove and reinstall the rope between removing and tightening that
> bolt.
>
> You should be able to free up the shaft in your second fan housing,
> but first saw a shallow slot in the right end of the shaft, parallel
> to the flaps. This will let you check the flap position at a glance
> at any time in the future and also check that the shaft is free using
> a screwdriver in that slot. It's something VW should have done!
>
> --
> *******************************
> Jim Adney, jadney at vwtype3.org
> Madison, Wisconsin, USA
> *******************************
>
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