Re: typ44 A/C question, and timing belt question

[Wallace White <wallace@remdesign.com>]

JordanVw@aol.com wrote:
> 
> early '86 5kT.
> problem: A/C blowing out defrost vents.
> 
> so..i thought the climate control programmer, located behind the glovebox,
> went bad.  well, i pull it out, and swap it with a good one i have from my
> wrecked '84, and it STILL blows thru the defrost. ('84 to early '86 is the
> same programmer)
> any ideas?

Have you checked that all the vacuum lines going to the actuators do hold
vacuum?

> also, on the evaporator housing flap (door)  the plastic bracket that holds
> the vacuum bladder broke. so the rubber vacuum bladder is just hanging off
> the door, and the door stays open to under the hood.  (it obviously was like
> this for some time, when i opened the door above the front passengers
> foorwell, the whole housing was clogged with leaves, behind the evaporator..)

There is an extra-heavy-duty replacement for this plastic bracket:
	200 272 200  - Bracket
	443 271 241  - Return spring
	433 271 263A - Door seal
A good idea to do all three. The bracket is a _thick_ steel sheet bent
into a U shape. A little tricky to install but you can be sure it won't
break.

For now, make sure that you don't have a vacuum leak there. The vacuum
hose often comes off of the actuator when the plastic bracket has broken.
Plug the hose for now.

> is it feasible to remove just the evap door assembly without removing the
> whole evap?  i looked up in there, i may be able to wire the vacuum bladder
> to the mount...anybody tried to wire it up when it broke?
> also, when the A/C is on, the evap door should be open to underneath the
> hood, or open to the interior?

The system opens that vacuum valve (which is connected to the recirc/fresh
flaps and to the heater valve) only when it's really trying to cool the
car down. AUTO LO will definitely do it. ECON will never do it. Thus if
your flaps work correctly in ECON but not in AUTO LO, you know that you've
got a leak in the recirc/fresh/heater valve group.

> also, regarding the timing belt, i just ordered a tensioner/idler pulley, and
> a waterpump. anything else i should replace while the timing belt is off?

Yep: crankshaft seal. The Parts Connection is including them with their
current water pump package. Be advised, however, that the seal can be a
real pain to get out! I would seriously consider getting or borrowing the
special puller tool. Otherwise, see Scott Mockry's site for a how-to.

- Wallace
  '87 5kcstq 155k

> thanks for your help-
> 
> chris
> '86 5kT
> '86 5kTQ
> '84 5kT (wrecked, parting out)