On or around Tue, 22 Nov 2005 20:07:22 +0000 (UTC), "Andrew Cooke"
<firstname.lastname@example.org> enlightened us thusly:
>The weird thing is I have just been out in it again and this time the temp
>gauge went to the normal mid position but the heater blew icy cold. Then on
>the return journey the gauge again went to the middle but the heater blew
>warm, what the h*ll is going on with it????
Check the coolant level before driving it again. You've got classic
low-coolant level symptoms there.
IME if the coolant gets low (only takes about 2" missing from the header
tank, so it don't LOOK very low) it will airlock the heater. Top it up and
get it hot and run it uphill at medium revs seems to cure it. But watch the
coolant level carefully to make sure it's not leaking.
Possible coolant leak points include the P gasket between the water pump
body and the block and the one on the front of the head behind the
thermostat housing. Both of these are hard to spot.
worth doing a pressure test on the cooling system if you suspect a leak.
Connect a T-piece and a bit of hose on the end of the small pipe that goes
to the corner of the rad, then you can connect a pipe from there to a
partly-inflated spare tyre or other source of pressure.
Austin Shackles. www.ddol-las.net
my opinions are just that
"For when the One Great Scorer comes to write against your name,
He marks - not that you won or lost - but how you played the game"
Grantland Rice (1880-1954). my opinions are just that