>Hello Fellow Listers,
>Here is my latest problem. We have a restored 78 Spitfire 1500
>It appears I have heat all of the time, but it didn't seem to start out that
>way. We have had the car since Feb., but now it is really hot here on Cape
>Cod. The heater box always feels warm. The cable to the heater valve seems
>ok, it moves and seems to be adjusted properly. The heater valve looks new,
>but who knows. If I figure it correctly, the heater valve allows radiator
>water to enter or not enter the heater box. I can see the little doors under
>the dash open and close when I move the left heater lever, and the right
>lever correctly moves the arm on the heater valve. Maybe it is just because
>its 90 degrees here. How can the heater valve be checked, or do I just go
>ahead and replace it.
John,
Basically, it sounds like the valve may not be closing all
the way. This could be due to improper adjustment, or could
be crud buildup on the seat of the valve. If you have the
engine up to operating temp, you should not be able to hold
and hardly touch the input hose to the heater valve. If the
valve is working, it should be very cool on the output side
of the valve. You could also try placing a thermometer on both
hoses. If there isn't a significant difference in the temps,
then the valve is bad. If there is a large difference in temps.
then you are getting heat into the cockpit from various holes
in the firewall - where the gromets have/are failing, around the
emergency brake handle, and the xmission tunnel to firewall
interface.
John
John T. Blair WA4OHZ email: [EMAIL PROTECTED]
Va. Beach, Va Phone: (757) 495-8229
48 TR1800 48 #4 Midget 65 Morgan 4/4 Series V
75 Bricklin SV1 77 Spitfire 71 Saab Sonett III
65 Rambler Classic
Morgan: www.team.net/www/morgan
Bricklin: www.bricklin.org
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