[xj] No heat, just cold air- anyone help?

Greetings!
Having browsed a number of posts from the archives, I see many
references to heater valves, flaps, resistors, coils- but don’t
know which angle to attack first!
I have an '87 XJ6, straight 6, and the fan works great- if you only
want ventilation- no heat or AC, Is it the heater water valve, or
is it something else?
Looking forward to someones shared wisdom,
Chris–
Inglehart
–Posted using Jag-lovers JagFORUM [forums.jag-lovers.org]–

===================================================
The archives and FAQ will answer many queries on the XJ series…
FAQs: http://www.jag-lovers.org/xjlovers/xjfaq/index.html
Archives: http://www.jag-lovers.org/lists/search.html

To remove yourself from this list, go to http://www.jag-lovers.org/cgi-bin/majordomo.

// please trim quoted text to context only

In reply to a message from Inglehart sent Thu 24 Nov 2005:

Not sure about shared wisdom but the heater valve is relatively
easy to check.

With the car up to temperature, select defrost on the right hand
knob. This forces the system to demand hot water from the water
valve. Under the bonnet/hood check the hose that comes from the
water valve and goes to the stub pipe on the bulkhead and see if it
gets/is warm. If it is and you still have cold air coming from the
screen vents then the flaps that control the air flow inside the
air con unit are in the wrong position. There are several possible
causes.

If you haven’t already done so, download the XJS book by Kirby Palm
(available free from the JL site) There’s a really good description
of the Delanair system(s) together with coloured diagrams of how
the flaps move in the various modes to achieve heating and cooling.–
The original message included these comments:

want ventilation- no heat or AC, Is it the heater water valve, or
is it something else?


al mclean '93 XJS 4.0 - '79 SII XJ6 mod - '84 4.2 Daimler
Telford, United Kingdom
–Posted using Jag-lovers JagFORUM [forums.jag-lovers.org]–
–Support Jag-lovers - Donate at http://www.jag-lovers.org/donate04.php

===================================================
The archives and FAQ will answer many queries on the XJ series…
FAQs: http://www.jag-lovers.org/xjlovers/xjfaq/index.html
Archives: http://www.jag-lovers.org/lists/search.html

To remove yourself from this list, go to http://www.jag-lovers.org/cgi-bin/majordomo.

// please trim quoted text to context only

In reply to a message from almcl sent Thu 24 Nov 2005:

We had those symptoms and tried to attack the water valve…!
fortunately it’s sheltered down in the bilge below and behind the
engine and we couldn’t get a good swing at it!?!
We did spray our favorite super-slime all over it.
Turns out Frank put in a used servo motor and told me I still need
an a/c amplifier!
So maybe there is a sequence that must be gone through before the
hot water wants to stir…we had warmth but no control of
degrees, hence it quit blasting cold air at us, and we could adjust
and direct the flow through the fan control.
Do you think this is revalent?
I’ll forgo even the $00.02…
Bill–
The original message included these comments:

In reply to a message from Inglehart sent Thu 24 Nov 2005:
Not sure about shared wisdom but the heater valve is relatively
easy to check.
The original message included these comments:

want ventilation- no heat or AC, Is it the heater water valve, or
is it something else?


Bill de Creeft AlaskaSeaplanes.com
Homer, Alaska, United States
–Posted using Jag-lovers JagFORUM [forums.jag-lovers.org]–
–Support Jag-lovers - Donate at http://www.jag-lovers.org/donate04.php

===================================================
The archives and FAQ will answer many queries on the XJ series…
FAQs: http://www.jag-lovers.org/xjlovers/xjfaq/index.html
Archives: http://www.jag-lovers.org/lists/search.html

To remove yourself from this list, go to http://www.jag-lovers.org/cgi-bin/majordomo.

// please trim quoted text to context only