Check out this site
look at his valve fix for the heater valve.
----- Original Message -----
From: "Scott Hower" <HowerSL@worldnet.att.net>
Sent: Wednesday, September 05, 2001 8:16 PM
Subject: Functioning heater controls?
> Ok, is it just me, or does anyone else not have a functioning heater
> on their MGB? I've got a 73 MGB and no matter what I seem to do, I
> cant get the blasted heater dial to actually work.
> The control itself is fine, devoid of petrified grease and assorted rodent
> droppings. It turns freely and clicks into the stops on either end with
> The cable and heater valve are both new. The cable slides smoothly inside
> the sheath. The valve action is smooth, and stays closed once snapped
> I've got the cable sheath firmly clamped at both ends and the slack
> I've tried adjusting with the valve and dial fully open and fully closed,
> but I
> dont get full range of travel with either. The best setting seems to be
> the valve/ dial position fully open; but with the dial in the "off"
> position, the
> valve doesn't close... it is sort of there, but not snapped shut.
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