Hi David,
first you need to look at the valve on the block which is controlled by
the heat switch. Try to turn it manually perhaps to get some water
flowing.
Second - you may have a blocked heater core - ( hope its not this as its
a real pain to get out and in again.) You need to disconnect the heater
hoses where they attach to the heater unit ( look at workshop manual)
then the bottom cable for the flap - and the electrics to the fan - then
you remove the heater box - split it and either wash through - or better
still replace with an uprated matrix - and an uprated fan!
Then the fun part - attach the bottom cable and feed it through the
bulkhead - then slip the heater box back into place - easy - if you are
luck - a total ******* if you are not!
Good luck ..........
David
73 B GT ( now with working heater!)
90 Jaguar XJR 4lt
In message <24265.1003830035@www22.gmx.net>, David Hayes
<David.Hayes@gmx.net> writes
>Hi Everyone
>I have recently bought a 1973 MGB Roadster and I have a couple of
>questions...
>1. Heater, I can make it blow but only cold air, I think there is a loose
>connection somewhere between the switch and the fan because even cold air is
>a
>bit intermittant. What should I look at to try and get some warm air into the
>car??
>2. On the boot near where the rubber seal stops the water getting in there
>is a small crack in the gully that runs water away from the boot, I've got all
>the rust out but I'm not sure on the best way to seal it?
>Thanks in advance for your help
>David Hayes
>
--
Dr David M McNaughton
Haddington East Lothian
Radio GM8 KOF
///
/// mgs@autox.team.net mailing list
/// or try http://www.team.net/cgi-bin/majorcool
///
|