There was an aricle published in the NAMGAR (North Amercian MGA
Register) mag a couple of months ago that was, in fact, lifted bodily
from the MGB Mag. This article details the modification of the Heater
valve (same on both cars) by removing the circlip on the bottom and
slipping a couple of washers under it.. The valve is very easy to
disassemble once the rivet has been drilled out.
The article describes a very thorough testing protocol followed before
and after the modification. It makes a significant difference in the
heater output. I tried it and have noted an imporved heater output.
However , as I'm currently using a 150 deg. thermostat any change will
not be significant. I have just purchased a 180 deg. unit and expect
large improvements when it is installed. (I also reamed out the
internals somewhat. One of the local gurus suggested that the block
opening be reamed out and tidied up as well.
--
Mike MacLeod, Water Valley, Alberta ...Check out:
"The Acoustic Guitar Store" <http://www.acousticguitar.net>
"The Swing Geezers" <http://www.cadvision.com/macleodm/geezers.htm>
The Box said "For Windows '95 or better" so I got a Mac.
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