More Feb......Smiths heater.

So onto the cab heater. The fan motor had to be stripped as the oiltite/phosphor bronze bearing had gone dry. I gave it a clean and put a dab of gun oil on each bearing surface. Runs sweet now. Fan blade cleaned up and both bits treated to a coat of satin black smoothrite.

Heater matrix after being stripped from the assy.



Well the round Smith's held liquid overnight and I have just blown through the heater matrix with an air line and the vanes look good. No sign of anything other than surface discolouration from 'rustitis'. So the next step is to soak the matrix externally in some hot water and detergent to lift off any more crud - I will leave it to dry over the log burner so that will drive any water out after a rinse.

To flush the matrix internally I plan to use a 50/50 mix of boiling water and brown vinegar tonite. So that will either eat the matrix away or shift more muck?

The matrix is sat in front of the fire for an overnight dry out after being flushed with 50/50 brown vinegar and boiling water, then two teaspoons of bicarb and hot water, then fabric detergent and hot water, then more boiling water and dish detergent, then copious amount of hot water. After two hours of hand flushing it is now almost there. Basically I cannot face another two hours over the sink so that is the best that'll have to do.

Smiths fan looking all tarty and lounge starting to look like a S2 parts emporium?