Hi, this is a 52 MG TD. The gauge is non-electrical, and appears to work by the expansion of a fluid in phial, which is then pushed up a pipe to activate the gauge. As I say, assume this is the way it works, but not sure.
Anyway, I recently removed the rad, and when I put it all back together, the gauge stopped working. I don't know if I nipped the pipe somehow and broke or squashed it, or the gauge has just stopped working (but that seems too much of a coincidence).
Is my assumption on how this works correct? What is the fluid? Any ideas on how I could find the fault??? Are the parts hard to source?
Thanks very much,
Regards,
Paul.